| Volume 19, Issue 1 January 2023 | |
Advertisement | The Associate Editor will decide on publication of the most exciting and consequential results in the field, conducting a thorough and high-quality review process. A successful candidate will work together with the editorial teams of two top-notch journals, PRX Quantum and Physical Review Applied, in addition to interacting with their Lead Editors and Editorial Boards. The Associate Editor will also be responsible for engaging and building connections with researchers from this highly regarded multidisciplinary research community. Apply today! | | | | | | Not an APS member? Join today to start connecting with a community of more than 50,000 physicists. | | | | Featured in Physics Rotem Kupfer, Furong Wang, James F. Wishart, Marcus Babzien, Mikhail N. Polyanskiy, Igor V. Pogorelsky, Triveni Rao, Luca Cultrera, Navid Vafaei-Najafabadi, and Mark A. Palmer Phys. Rev. Applied 19, 014052 (2023) – Published 19 January 2023  | Artificial salts that are liquid at room temperature can be used to efficiently tune the wavelength of a laser source. | | | | | | Editors' Suggestion Y. Nii and Y. Onose Phys. Rev. Applied 19, 014001 (2023) – Published 3 January 2023  | The topological properties of an acoustic metamaterial's phononic band structure would be useful for developing functional acoustic and thermal devices. While previous demonstrations of topological properties have been limited to low-frequency airborne sound, high-frequency acoustic waveguides utilizing the topological edge state are increasingly in demand for quantum technologies, sensing, and microwave communication. In this work, the authors use innovative microscopy to visualize topological acoustic edge states at frequencies as high as 2.4 GHz on a patterned substrate, which bodes well for the feasibility of topological surface-acoustic-wave devices. | | | | | | Editors' Suggestion Dario Collia, Giulia Pedrizzetti, Tomoyuki Sato, Daisuke Matsubara, Luigino Zovatto, Massimiliano Gei, Anirban Banerjee, and Gianni Pedrizzetti Phys. Rev. Applied 19, 014006 (2023) – Published 4 January 2023  | Heart failure is a progressive pathology that represents the main life-threatening cardiac disease. Its models are typically based on clinical observations and are not consistently predictive. This study employs an approach based on both fluid dynamics and solid mechanics to uncover the flow-tissue interplay that may anticipate the development of heart failure. The physiological fluid-structure interaction is analyzed in children with a single right ventricle (SRV), where the right ventricle has been surgically transformed to take on the role of an underdeveloped left ventricle. The results provide a physics-based explanation for the observed clinical outcome in these patients. | | | | | | Editors' Suggestion Enrico Talamas Simola, Michele Montanari, Cedric Corley-Wiciak, Luciana Di Gaspare, Luca Persichetti, Marvin H. Zöllner, Markus A. Schubert, Tommaso Venanzi, Marina Cagnon Trouche, Michele Ortolani, Francesco Mattioli, Gianfranco Sfuncia, Giuseppe Nicotra, Giovanni Capellini, Michele Virgilio, and Monica De Seta Phys. Rev. Applied 19, 014011 (2023) – Published 4 January 2023  | Thick Ge/(Si,Ge) multiple-quantum-well heterostructures are interesting for silicon-integrated optoelectronic devices operating in the midinfrared and terahertz spectral regions. The epitaxy of such structures becomes increasingly challenging as their thickness increases, due to the accumulation of strain and defects. This study proves that ultrahigh-vacuum chemical vapor deposition allows for subnanometer control of the compositional profile throughout micrometer-thick strain-compensated multilayered structures with very low defect density. Here terahertz spectroscopy plus numerical simulation allows characterization at higher sensitivity and resolution than standard techniques. | | | | | | Editors' Suggestion Jeremy Bourhill, Weichao Yu, Vincent Vlaminck, Gerrit E. W. Bauer, Giuseppe Ruoso, and Vincent Castel Phys. Rev. Applied 19, 014030 (2023) – Published 10 January 2023  | In a circulating cavity magnon polariton (quantized spin wave plus photon, resonating in a microwave chamber), the hybrid state and a noninteracting photonic state rotate in opposite directions—an important phenomenon for generating chiral states of electromagnetic modes in cavity magnonics and microwave engineering, to impart angular momentum upon standing waves. This study demonstrates the unidirectional nature of the mode propagation, paving the way for the generation of a high-power microwave beam with high coherence and narrow bandwidth. The authors also demonstrate how the unidirectional mode propagation results in nonreciprocity of the mode's transmission amplitudes and phases. | | | | | | Editors' Suggestion Mojtaba Dehmollaian, Guillaume Lavigne, and Christophe Caloz Phys. Rev. Applied 19, 014051 (2023) – Published 18 January 2023  | Offering a potential pathway to the fantasy of invisibility, cloaking has been a most popular concept since its introduction over 15 years ago. This article furthers the concept by making the cloak transmittable, so as to allow "transmitting without being seen". This special cloak consists of a concentric set of bianisotropic metasurfaces with a nonreciprocal innermost element, and allows the entity sitting at its center to transmit information at will in a desired direction while remaining invisible in all other directions. Such cloaks may find application in e.g. stealth technology, blockage avoidance, optical illusion, and cooling. | | | | | | Editors' Suggestion Nerea Ontoso, C. K. Safeer, Franz Herling, Josep Ingla-Aynés, Haozhe Yang, Zhendong Chi, Beatriz Martin-Garcia, Iñigo Robredo, Maia G. Vergniory, Fernando de Juan, M. Reyes Calvo, Luis E. Hueso, and Fèlix Casanova Phys. Rev. Applied 19, 014053 (2023) – Published 19 January 2023  | Spin-charge interconversion phenomena are important ingredients for the development of post-CMOS spin-based logic and magnetic memory technologies. Device design is often limited, though, by the fact that in most systems conversion occurs only if charge current, spin current, and spin polarization are mutually orthogonal. The authors find that in graphene/MoTe2 van der Waals heterostructures, charge currents injected in any spatial direction contribute to the same particular spin-polarization direction, thanks to a combination of strong spin-orbit proximity effects and broken crystal symmetries. This insight points to efficient spin-current generation and flexible device design. | | | | | | Editors' Suggestion Yongjin Sung Phys. Rev. Applied 19, 014064 (2023) – Published 24 January 2023  | A material's refractive index is a major input for the light-scattering analysis of microscopic particles and label-free optical imaging of biological tissues. Existing techniques for measuring the refractive index of a nonspherical specimen over a wide wavelength range are typically slow, because they require recording so many orientations and wavelengths of the laser illuminating the specimen. Here researchers demonstrate hyperspectral three-dimensional (3D) refractive-index imaging at high throughput using snapshot optical tomography, which can record a 3D map of the refractive index in a single snapshot, in combination with a wavelength-scanning laser. | | | | | | Editors' Suggestion Yihuan Zhu, Ruizhi Dong, Dongxing Mao, Xu Wang, and Yong Li Phys. Rev. Applied 19, 014067 (2023) – Published 26 January 2023  | A traditional metasurface is composed of metaunits that are elaborately designed to provide a precise local response, and these metaunits also inevitably impact mutual radiation from each other, affecting the global response of the metasurface. Beyond those nonlocal metasurfaces that utilize such radiation coupling to promote efficiency in wave manipulation, in this study the coupling effect also serves as a powerful tool for engineering the spectrum, showcased by an acoustic open metasurface that allows airflow while blocking sound in a dramatically extended frequency band. This finding offers an efficient approach for broadband wave manipulation in a hybrid nonlocal manner. | | | | | | Editors' Suggestion E. Santos, J.E. Abrão, Dongwook Go, L.K. de Assis, Yuriy Mokrousov, J.B.S. Mendes, and A. Azevedo Phys. Rev. Applied 19, 014069 (2023) – Published 27 January 2023  | Spin torque induced by orbital current has become of great interest, as it allows the use of lighter elements in the development of advanced spin-orbitronic devices. Meanwhile, the inverse orbital torque (IOT) effect, in which an orbital current creates a charge current, has been difficult to detect. This study uses pumped spin-orbital current in Y3Fe5O12/Pt/CuOx heterostructures to investigate the IOT effect. Mixed spin-orbital states propagate to the Pt/CuOx interface and create a much stronger transverse charge current than that created without the CuOx coating. This inverse orbital Rashba-Edelstein effect can be used to advance applications in spintronics. | | | | | | Letter Hongyi Ouyang, Yuanqing Gu, Zhibin Gao, Lei Hu, Zhen Zhang, Jie Ren, Baowen Li, Jun Sun, Yan Chen, and Xiangdong Ding Phys. Rev. Applied 19, L011001 (2023) – Published 13 January 2023  | Thermal regulation is crucial in modern electronics, but how to augment the thermal-switching ratio of high-performance heat regulators is still a puzzle that limits applications. In this kirigami-inspired study, a mechanical metamaterial made of nitrogen-doped porous graphene is designed to achieve an impressively high thermal-switching ratio. The high ratio comes from a chiral folding-unfolding deformation, which induces a metal-insulator transition that switches the primary heat carriers from electrons to phonons. This work provides a design paradigm to bridge the gap between kinematics and functional metamaterials and promote the development of high-performance thermal regulators. | | | | | | Letter Zhibo Hou, Jun-Feng Tang, Chang-Jiang Huang, Yun-Feng Huang, Guo-Yong Xiang, Chuan-Feng Li, and Guang-Can Guo Phys. Rev. Applied 19, L011002 (2023) – Published 24 January 2023  | Finding a path toward efficient multiphoton entanglement generation would boost both foundational studies and practical applications of quantum entanglement in e.g. quantum computation, metrology, and communication. The common approach has a notorious problem of exponentially decreasing success probability with increasing photon number, so another method is needed for scalability. This Letter presents a scheme for creating 2n-photon entangled states with an exponential efficiency-enhancement factor of Bn−1 without spoiling the entanglement. Even with just the currently demonstrated multiplexing power, applying this method to state-of-the-art 12-photon states would yield an enhancement factor of 104. | | | | | | Letter Katsuhiko Nishiguchi, Hiroshi Yamaguchi, and Akira Fujiwara Phys. Rev. Applied 19, L011003 (2023) – Published 27 January 2023  | A high-frequency nanoelectromechanical system (NEMS) based on a graphene membrane is a candidate for sensing applications, as well as a platform for fundamental research, but detecting such high-frequency oscillations of small membrane displacement is technically challenging. The authors integrate a high-sensitivity transistor with a multilayer graphene NEMS and drive the transistor via double resonant circuits at an electrical resonance. By optimizing the resonant circuits and driving the transistor with an rf signal, the high-frequency NEMS signal can be detected. This technique is useful for realizing NEMS applications at subgigahertz or higher frequencies. | | | | | | Editors' Suggestion Y. Nii and Y. Onose Phys. Rev. Applied 19, 014001 (2023) – Published 3 January 2023 | The topological properties of an acoustic metamaterial's phononic band structure would be useful for developing functional acoustic and thermal devices. While previous demonstrations of topological properties have been limited to low-frequency airborne sound, high-frequency acoustic waveguides utilizing the topological edge state are increasingly in demand for quantum technologies, sensing, and microwave communication. In this work, the authors use innovative microscopy to visualize topological acoustic edge states at frequencies as high as 2.4 GHz on a patterned substrate, which bodes well for the feasibility of topological surface-acoustic-wave devices. | | | | | | Sergio Martínez-Losa del Rincón, Ignacio Gimeno, Jorge Pérez-Bailón, Victor Rollano, Fernando Luis, David Zueco, and María José Martínez-Pérez Phys. Rev. Applied 19, 014002 (2023) – Published 3 January 2023 | | | Jia-Hui Yuan, Xiao-Kuo Yang, Bo Wei, Ya-Bo Chen, Huan-Qing Cui, Jia-Hao Liu, Shu-Qing Dou, Ming-Xu Song, and Li Fei Phys. Rev. Applied 19, 014003 (2023) – Published 3 January 2023 | | | Hamidreza Taghvaee, Fu Liu, Ana Díaz-Rubio, and Sergei Tretyakov Phys. Rev. Applied 19, 014004 (2023) – Published 3 January 2023 | | | Subhajit Sarkar, Ieng Wai Un, and Yonatan Sivan Phys. Rev. Applied 19, 014005 (2023) – Published 3 January 2023 | | | Editors' Suggestion Dario Collia, Giulia Pedrizzetti, Tomoyuki Sato, Daisuke Matsubara, Luigino Zovatto, Massimiliano Gei, Anirban Banerjee, and Gianni Pedrizzetti Phys. Rev. Applied 19, 014006 (2023) – Published 4 January 2023 | Heart failure is a progressive pathology that represents the main life-threatening cardiac disease. Its models are typically based on clinical observations and are not consistently predictive. This study employs an approach based on both fluid dynamics and solid mechanics to uncover the flow-tissue interplay that may anticipate the development of heart failure. The physiological fluid-structure interaction is analyzed in children with a single right ventricle (SRV), where the right ventricle has been surgically transformed to take on the role of an underdeveloped left ventricle. The results provide a physics-based explanation for the observed clinical outcome in these patients. | | | | | | Jiaxuan Xu, Yue Hu, and Hua Bao Phys. Rev. Applied 19, 014007 (2023) – Published 4 January 2023 | | | Yoshiaki Tsujimoto, Rikizo Ikuta, Kentaro Wakui, Toshiki Kobayashi, and Mikio Fujiwara Phys. Rev. Applied 19, 014008 (2023) – Published 4 January 2023 | | | J.A. Álvarez-Sanchis, B. Vidal, S.A. Tretyakov, and A. Díaz-Rubio Phys. Rev. Applied 19, 014009 (2023) – Published 4 January 2023 | | | Wenbin Hu, Mingxian Huang, Heping Xie, Huaiwu Zhang, and Feiming Bai Phys. Rev. Applied 19, 014010 (2023) – Published 4 January 2023 | | | Editors' Suggestion Enrico Talamas Simola, Michele Montanari, Cedric Corley-Wiciak, Luciana Di Gaspare, Luca Persichetti, Marvin H. Zöllner, Markus A. Schubert, Tommaso Venanzi, Marina Cagnon Trouche, Michele Ortolani, Francesco Mattioli, Gianfranco Sfuncia, Giuseppe Nicotra, Giovanni Capellini, Michele Virgilio, and Monica De Seta Phys. Rev. Applied 19, 014011 (2023) – Published 4 January 2023 | Thick Ge/(Si,Ge) multiple-quantum-well heterostructures are interesting for silicon-integrated optoelectronic devices operating in the midinfrared and terahertz spectral regions. The epitaxy of such structures becomes increasingly challenging as their thickness increases, due to the accumulation of strain and defects. This study proves that ultrahigh-vacuum chemical vapor deposition allows for subnanometer control of the compositional profile throughout micrometer-thick strain-compensated multilayered structures with very low defect density. Here terahertz spectroscopy plus numerical simulation allows characterization at higher sensitivity and resolution than standard techniques. | | | | | | N. Figueiredo-Prestes, P. Tsipas, S. Krishnia, P. Pappas, J. Peiro, S. Fragkos, V. Zatko, A. Lintzeris, B. Dlubak, S. Chaitoglou, M. Heuken, N. Reyren, H. Jaffrès, P. Seneor, A. Dimoulas, and J.-M. George Phys. Rev. Applied 19, 014012 (2023) – Published 5 January 2023 | | | Zhenong Zhang and Linxiao Zhu Phys. Rev. Applied 19, 014013 (2023) – Published 5 January 2023 | | | Mingyu Kang, Ye Wang, Chao Fang, Bichen Zhang, Omid Khosravani, Jungsang Kim, and Kenneth R. Brown Phys. Rev. Applied 19, 014014 (2023) – Published 5 January 2023 | | | Christopher J. Knill, Hisato Yamaguchi, Kenji Kawahara, Gaoxue Wang, Enrique Batista, Ping Yang, Hiroki Ago, Nathan Moody, and Siddharth Karkare Phys. Rev. Applied 19, 014015 (2023) – Published 5 January 2023 | | | Yi Liang, Liu Tan, Nana Liu, Kaijian Chen, Huanpeng Liang, Huahao Wu, Bingshen Luo, Fuxi Lu, Huihe Chen, Bingsuo Zou, and Peilong Hong Phys. Rev. Applied 19, 014016 (2023) – Published 5 January 2023 | | | Yao Ding, Zhengyang Bai, Guoxiang Huang, and Weibin Li Phys. Rev. Applied 19, 014017 (2023) – Published 5 January 2023 | | | Purun-hanul Kim, Sang Ho Jeon, Jin Hyuk Jang, Seungwu Han, and Youngho Kang Phys. Rev. Applied 19, 014018 (2023) – Published 6 January 2023 | | | Yusuf Zuntu Abdullahi, Ahmet Tigli, and Fatih Ersan Phys. Rev. Applied 19, 014019 (2023) – Published 6 January 2023 | | | Guohui Zhan, Zhilong Yang, Kun Luo, Shengli Zhang, and Zhenhua Wu Phys. Rev. Applied 19, 014020 (2023) – Published 6 January 2023 | | | Junrui Yang, Shuaicheng Lu, Bing Xia, Peilin Liu, Yang Yang, Zewen Xiao, Jianbing Zhang, Liang Gao, and Jiang Tang Phys. Rev. Applied 19, 014021 (2023) – Published 6 January 2023 | | | V.I. Yudin, A.V. Taichenachev, O.N. Prudnikov, M.Yu. Basalaev, V.G. Pal'chikov, M. von Boehn, T.E. Mehlstäubler, and S.N. Bagayev Phys. Rev. Applied 19, 014022 (2023) – Published 6 January 2023 | | | Luyu Huang, Xiangyu Wang, Ziyang Chen, Yanhao Sun, Song Yu, and Hong Guo Phys. Rev. Applied 19, 014023 (2023) – Published 6 January 2023 | | | Sung Won Lee, Seung Il Kim, Hong Min Seung, and Joo Hwan Oh Phys. Rev. Applied 19, 014024 (2023) – Published 9 January 2023 | | | David H. Meyer, Joshua C. Hill, Paul D. Kunz, and Kevin C. Cox Phys. Rev. Applied 19, 014025 (2023) – Published 9 January 2023 | | | Yupeng Li, Jingang Zhou, Miaocong Li, Lei Qiao, Chenxi Jiang, Qiming Chen, Yuke Li, Qian Tao, and Zhu-An Xu Phys. Rev. Applied 19, 014026 (2023) – Published 9 January 2023 | | | Y.F. Zolotarev, I.A. Luchnikov, J.A. López-Saldívar, A.K. Fedorov, and E.O. Kiktenko Phys. Rev. Applied 19, 014027 (2023) – Published 9 January 2023 | | | Hang-Bo Zhang and Marin Alexe Phys. Rev. Applied 19, 014028 (2023) – Published 9 January 2023 | | | Anthony M. Polloreno, Jacob L. Beckey, Joshua Levin, Ariel Shlosberg, James K. Thompson, Michael Foss-Feig, David Hayes, and Graeme Smith Phys. Rev. Applied 19, 014029 (2023) – Published 10 January 2023 | | | Editors' Suggestion Jeremy Bourhill, Weichao Yu, Vincent Vlaminck, Gerrit E. W. Bauer, Giuseppe Ruoso, and Vincent Castel Phys. Rev. Applied 19, 014030 (2023) – Published 10 January 2023 | In a circulating cavity magnon polariton (quantized spin wave plus photon, resonating in a microwave chamber), the hybrid state and a noninteracting photonic state rotate in opposite directions—an important phenomenon for generating chiral states of electromagnetic modes in cavity magnonics and microwave engineering, to impart angular momentum upon standing waves. This study demonstrates the unidirectional nature of the mode propagation, paving the way for the generation of a high-power microwave beam with high coherence and narrow bandwidth. The authors also demonstrate how the unidirectional mode propagation results in nonreciprocity of the mode's transmission amplitudes and phases. | | | | | | Jiangkun Sun, Sheng Yu, Hemin Zhang, Dongyang Chen, Xin Zhou, Chun Zhao, Dustin D. Gerrard, Ryan Kwon, Gabrielle Vukasin, Dingbang Xiao, Thomas W. Kenny, Xuezhong Wu, and Ashwin Seshia Phys. Rev. Applied 19, 014031 (2023) – Published 10 January 2023 | | | Amit Samanta, Stephan Friedrich, Kyle G. Leach, and Vincenzo Lordi Phys. Rev. Applied 19, 014032 (2023) – Published 10 January 2023 | | | Shaobo Gao, Jacob A. Blackmore, William J. Hughes, Thomas H. Doherty, and Joseph F. Goodwin Phys. Rev. Applied 19, 014033 (2023) – Published 11 January 2023 | | | Sujin Kim, Junphil Hwang, Tae-Soo You, Seongbeom Yeon, Jungwon Kim, Byung-Kyu Yu, Mi-Kyung Han, Minju Lee, Somnath Acharya, Jiyong Kim, Woochul Kim, and Sung-Jin Kim Phys. Rev. Applied 19, 014034 (2023) – Published 11 January 2023 | | | Joshua L. Reynolds, Yonatan Israel, Adam J. Bowman, Brannon B. Klopfer, and Mark A. Kasevich Phys. Rev. Applied 19, 014035 (2023) – Published 11 January 2023 | | | Lan Zhou, Bao-Wen Xu, Wei Zhong, and Yu-Bo Sheng Phys. Rev. Applied 19, 014036 (2023) – Published 11 January 2023 | | | Ian R. Berkman, Alexey Lyasota, Gabriele G. de Boo, John G. Bartholomew, Brett C. Johnson, Jeffrey C. McCallum, Bin-Bin Xu, Shouyi Xie, Rose L. Ahlefeldt, Matthew J. Sellars, Chunming Yin, and Sven Rogge Phys. Rev. Applied 19, 014037 (2023) – Published 12 January 2023 | | | M. Kleinhans, K. Eibensteiner, J.C. Leiner, C. Resch, L. Worch, M.A. Wilde, J. Spallek, A. Regnat, and C. Pfleiderer Phys. Rev. Applied 19, 014038 (2023) – Published 12 January 2023 | | | Lin Li, Peize Yuan, Ting Liu, Zinan Ma, Congxin Xia, and Xueping Li Phys. Rev. Applied 19, 014039 (2023) – Published 12 January 2023 | | | Sabyasachi Tiwari, Maarten L. Van de Put, Kristiaan Temst, William G. Vandenberghe, and Bart Sorée Phys. Rev. Applied 19, 014040 (2023) – Published 12 January 2023 | | | Kun Zhang, Hai Jiang, Fengliang Dong, Haifeng Hu, Zhiwei Song, Lihua Xu, Zhengguo Shang, Gaofeng Liang, Zhihai Zhang, Zhongquan Wen, Yi Zhou, Luru Dai, Weiguo Chu, and Gang Chen Phys. Rev. Applied 19, 014041 (2023) – Published 13 January 2023 | | | D.P. Valdés, T.E. Torres, A.C. Moreno Maldonado, G. Urretavizcaya, M.S. Nadal, M. Vasquez Mansilla, R.D. Zysler, G.F. Goya, E. De Biasi, and E. Lima, Jr. Phys. Rev. Applied 19, 014042 (2023) – Published 13 January 2023 | | | Laura Mercadé, Raúl Ortiz, Alberto Grau, Amadeu Griol, Daniel Navarro-Urrios, and Alejandro Martínez Phys. Rev. Applied 19, 014043 (2023) – Published 13 January 2023 | | | P. Wolny, H. Turski, G. Muziol, M. Sawicka, J. Smalc-Koziorowska, J. Moneta, M. Hajdel, A. Feduniewicz-Żmuda, S. Grzanka, R. Kudrawiec, and C. Skierbiszewski Phys. Rev. Applied 19, 014044 (2023) – Published 17 January 2023 | | | Zhantong Qi, Yiwen Huang, Chuanyi Lu, Fengchao Ni, Yuanhua Li, Yuanlin Zheng, and Xianfeng Chen Phys. Rev. Applied 19, 014045 (2023) – Published 17 January 2023 | | | Mahdi Rezayati Charan, Filip Berg, and Per Augustsson Phys. Rev. Applied 19, 014046 (2023) – Published 18 January 2023 | | | Ohad Silbiger and Yakir Hadad Phys. Rev. Applied 19, 014047 (2023) – Published 18 January 2023 | | | Anqi Huang, Akihiro Mizutani, Hoi-Kwong Lo, Vadim Makarov, and Kiyoshi Tamaki Phys. Rev. Applied 19, 014048 (2023) – Published 18 January 2023 | | | Kyle J. Ray and James P. Crutchfield Phys. Rev. Applied 19, 014049 (2023) – Published 18 January 2023 | | | Liangxu Jiang, Yingwei Wang, Shuyuan Fan, and Xinbo Li Phys. Rev. Applied 19, 014050 (2023) – Published 18 January 2023 | | | Editors' Suggestion Mojtaba Dehmollaian, Guillaume Lavigne, and Christophe Caloz Phys. Rev. Applied 19, 014051 (2023) – Published 18 January 2023 | Offering a potential pathway to the fantasy of invisibility, cloaking has been a most popular concept since its introduction over 15 years ago. This article furthers the concept by making the cloak transmittable, so as to allow "transmitting without being seen". This special cloak consists of a concentric set of bianisotropic metasurfaces with a nonreciprocal innermost element, and allows the entity sitting at its center to transmit information at will in a desired direction while remaining invisible in all other directions. Such cloaks may find application in e.g. stealth technology, blockage avoidance, optical illusion, and cooling. | | | | | | Featured in Physics Rotem Kupfer, Furong Wang, James F. Wishart, Marcus Babzien, Mikhail N. Polyanskiy, Igor V. Pogorelsky, Triveni Rao, Luca Cultrera, Navid Vafaei-Najafabadi, and Mark A. Palmer Phys. Rev. Applied 19, 014052 (2023) – Published 19 January 2023 | Artificial salts that are liquid at room temperature can be used to efficiently tune the wavelength of a laser source. | | | | | | Editors' Suggestion Nerea Ontoso, C. K. Safeer, Franz Herling, Josep Ingla-Aynés, Haozhe Yang, Zhendong Chi, Beatriz Martin-Garcia, Iñigo Robredo, Maia G. Vergniory, Fernando de Juan, M. Reyes Calvo, Luis E. Hueso, and Fèlix Casanova Phys. Rev. Applied 19, 014053 (2023) – Published 19 January 2023 | Spin-charge interconversion phenomena are important ingredients for the development of post-CMOS spin-based logic and magnetic memory technologies. Device design is often limited, though, by the fact that in most systems conversion occurs only if charge current, spin current, and spin polarization are mutually orthogonal. The authors find that in graphene/MoTe2 van der Waals heterostructures, charge currents injected in any spatial direction contribute to the same particular spin-polarization direction, thanks to a combination of strong spin-orbit proximity effects and broken crystal symmetries. This insight points to efficient spin-current generation and flexible device design. | | | | | | Wenjie Li, Zhen Fan, Qicheng Huang, Jingjing Rao, Boyuan Cui, Zhiwei Chen, Zhuosheng Lin, Xiaobing Yan, Guo Tian, Ruiqiang Tao, Deyang Chen, Minghui Qin, Min Zeng, Xubing Lu, Guofu Zhou, Xingsen Gao, and Jun-Ming Liu Phys. Rev. Applied 19, 014054 (2023) – Published 19 January 2023 | | | Darshan Chalise and David G. Cahill Phys. Rev. Applied 19, 014055 (2023) – Published 19 January 2023 | | | B. Veltkamp, J. Jagielka, K.P. Velikov, and Daniel Bonn Phys. Rev. Applied 19, 014056 (2023) – Published 20 January 2023 | | | Zhi Cheng, Xiangyu Ye, Jiandong Wu, Pei Yu, Cheng-Jie Wang, Mengqi Wang, Changkui Duan, Ya Wang, Fazhan Shi, Changlin Tian, Hongwei Chen, Pengfei Wang, and Jiangfen Du Phys. Rev. Applied 19, 014057 (2023) – Published 20 January 2023 | | | Qianyi Ma, Yuhui Tang, Jinqing Yu, Yinren Shou, Xuezhi Wu, and Xueqing Yan Phys. Rev. Applied 19, 014058 (2023) – Published 20 January 2023 | | | Nils T. Otterstrom, Matthew J. Storey, Ryan O. Behunin, Lisa Hackett, Peter T. Rakich, and Matt Eichenfield Phys. Rev. Applied 19, 014059 (2023) – Published 20 January 2023 | | | Xiaoyu Ju, Anek Bunkwang, Takuya Yamazaki, Tsuneyoshi Matsuoka, and Yuji Nakamura Phys. Rev. Applied 19, 014060 (2023) – Published 23 January 2023 | | | Laurence J. Bennett, Antonio J. Riquelme, Juan A. Anta, Nicola E. Courtier, and Giles Richardson Phys. Rev. Applied 19, 014061 (2023) – Published 23 January 2023 | | | Yasuo Oda, Dennis Lucarelli, Kevin Schultz, B. David Clader, and Gregory Quiroz Phys. Rev. Applied 19, 014062 (2023) – Published 23 January 2023 | | | Lin Han, Michael Chan, Damaz de Jong, Christian Prosko, Ghada Badawy, Sasa Gazibegovic, Erik P.A.M. Bakkers, Leo P. Kouwenhoven, Filip K. Malinowski, and Wolfgang Pfaff Phys. Rev. Applied 19, 014063 (2023) – Published 24 January 2023 | | | Editors' Suggestion Yongjin Sung Phys. Rev. Applied 19, 014064 (2023) – Published 24 January 2023 | A material's refractive index is a major input for the light-scattering analysis of microscopic particles and label-free optical imaging of biological tissues. Existing techniques for measuring the refractive index of a nonspherical specimen over a wide wavelength range are typically slow, because they require recording so many orientations and wavelengths of the laser illuminating the specimen. Here researchers demonstrate hyperspectral three-dimensional (3D) refractive-index imaging at high throughput using snapshot optical tomography, which can record a 3D map of the refractive index in a single snapshot, in combination with a wavelength-scanning laser. | | | | | | Gopika Lakshmi Bhai, Hiroto Mukai, Tsuyoshi Yamamoto, and Jaw-Shen Tsai Phys. Rev. Applied 19, 014065 (2023) – Published 25 January 2023 | | | Gongwei Hu, Fobao Huang, and Jun-Feng Liu Phys. Rev. Applied 19, 014066 (2023) – Published 25 January 2023 | | | Editors' Suggestion Yihuan Zhu, Ruizhi Dong, Dongxing Mao, Xu Wang, and Yong Li Phys. Rev. Applied 19, 014067 (2023) – Published 26 January 2023 | A traditional metasurface is composed of metaunits that are elaborately designed to provide a precise local response, and these metaunits also inevitably impact mutual radiation from each other, affecting the global response of the metasurface. Beyond those nonlocal metasurfaces that utilize such radiation coupling to promote efficiency in wave manipulation, in this study the coupling effect also serves as a powerful tool for engineering the spectrum, showcased by an acoustic open metasurface that allows airflow while blocking sound in a dramatically extended frequency band. This finding offers an efficient approach for broadband wave manipulation in a hybrid nonlocal manner. | | | | | | Shotaro Z. Baba, Nobuyuki Yoshioka, Yuto Ashida, and Takahiro Sagawa Phys. Rev. Applied 19, 014068 (2023) – Published 26 January 2023 | | | Editors' Suggestion E. Santos, J.E. Abrão, Dongwook Go, L.K. de Assis, Yuriy Mokrousov, J.B.S. Mendes, and A. Azevedo Phys. Rev. Applied 19, 014069 (2023) – Published 27 January 2023 | Spin torque induced by orbital current has become of great interest, as it allows the use of lighter elements in the development of advanced spin-orbitronic devices. Meanwhile, the inverse orbital torque (IOT) effect, in which an orbital current creates a charge current, has been difficult to detect. This study uses pumped spin-orbital current in Y3Fe5O12/Pt/CuOx heterostructures to investigate the IOT effect. Mixed spin-orbital states propagate to the Pt/CuOx interface and create a much stronger transverse charge current than that created without the CuOx coating. This inverse orbital Rashba-Edelstein effect can be used to advance applications in spintronics. | | | | | | Constantin Bernert et al. Phys. Rev. Applied 19, 014070 (2023) – Published 30 January 2023 | | | I. Boventer, H. T. Simensen, B. Brekke, M. Weides, A. Anane, M. Kläui, A. Brataas, and R. Lebrun Phys. Rev. Applied 19, 014071 (2023) – Published 30 January 2023 | | | Carolin Lüders, Jano Gil-Lopez, Markus Allgaier, Benjamin Brecht, Marc Aßmann, Christine Silberhorn, and Manfred Bayer Phys. Rev. Applied 19, 014072 (2023) – Published 31 January 2023 | | | Yue Ma, Jianfei Hua, Dexiang Liu, Yunxiao He, Tianliang Zhang, Jiucheng Chen, Fan Yang, Xiaonan Ning, Hongze Zhang, Yingchao Du, and Wei Lu Phys. Rev. Applied 19, 014073 (2023) – Published 31 January 2023 | | | Gaia Germanese, Federico Paolucci, Giampiero Marchegiani, Alessandro Braggio, and Francesco Giazotto Phys. Rev. Applied 19, 014074 (2023) – Published 31 January 2023 | | | H. Pan, J. Qian, Z. Rao, C.-M. Hu, and Z.H. An Phys. Rev. Applied 19, 014075 (2023) – Published 31 January 2023 | | | | |
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