Article
Materials Science, Multidisciplinary
D. C. Marinescu, S. Tewari
Summary: We theoretically predict the existence of a nonzero magnetochiral anisotropy-induced nonlinear Hall effect in spin-orbit coupled Rashba conductors under an in-plane magnetic field. This effect is distinct from the Berry curvature dipole (BCD)-induced nonlinear Hall effect and requires broken time-reversal symmetry.
Article
Multidisciplinary Sciences
Junhyeon Jo, Jung Hwa Kim, Choong H. Kim, Jaebyeong Lee, Daeseong Choe, Inseon Oh, Seunghyun Lee, Zonghoon Lee, Hosub Jin, Jung-Woo Yoo
Summary: This article presents a method to generate layer-by-layer defect gradients in a van der Waals material, inducing the Rashba effect by breaking spatial inversion symmetry. The effectiveness of the method is verified through experiments and theoretical calculations, paving the way for functional defect engineering in electronic applications.
NATURE COMMUNICATIONS
(2022)
Review
Optics
Minkyung Kim, Younghwan Yang, Dasol Lee, Yeseul Kim, Hongyoon Kim, Junsuk Rho
Summary: This article reviews the principle, recent developments, and applications of the spin Hall effect of light (SHEL). The theoretical description of the SHEL is provided, along with a comprehensive review of recent studies and applications. The future direction and prospects of the SHEL are also discussed.
LASER & PHOTONICS REVIEWS
(2023)
Article
Materials Science, Multidisciplinary
M. Umar Farooq, Lede Xian, Li Huang
Summary: This study systematically investigates the interplay between Dresselhaus spin-orbit coupling (DSOC) and Rashba spin-orbit coupling (RSOC) and their effects on spin Hall effect (SHE) in monoand bilayer InSe. The introduction of Rashba interaction in monolayer InSe increases Zeeman-like spin splitting and enhances spin Hall conductivity (SHC), while the SHC in the unperturbed centrosymmetric AB stacked bilayer stays insignificant in a wide energy range. On the other hand, the AB' stacked bilayer with intrinsic RSOC shows comparable SHC to the AB stacked bilayer with an external electric field, and the spin-momentum locking in the AB' stacked bilayer is switchable by a gate voltage.
Article
Materials Science, Multidisciplinary
Sheng-Bin Yu, Ma Zhou, Dong Zhang, Kai Chang
Summary: Janus MoSSe monolayer exhibits significant spin Hall conductivity, which can be significantly tuned by adjusting the Fermi level or external strains. The spin Hall conductivity in the valence bands is comparable to that of MoS2 and MoSe2, while in the conduction bands, it is enhanced by two orders of magnitude due to strong Rashba SOC.
Article
Nanoscience & Nanotechnology
Zui Tao, Bowen Shen, Wenjin Zhao, Nai Chao Hu, Tingxin Li, Shengwei Jiang, Lizhong Li, Kenji Watanabe, Takashi Taniguchi, Allan H. MacDonald, Jie Shan, Kin Fai Mak
Summary: A giant intrinsic spin Hall effect coexisting with ferromagnetism has been observed in AB-stacked MoTe2/WSe2 moire hetero-bilayers. This finding demonstrates the potential of moire engineering for spintronics applications, as it enables long-range spin Hall transport.
NATURE NANOTECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Yulin Gan, Fazhi Yang, Lingyuan Kong, Xuejiao Chen, Hao Xu, Jin Zhao, Gang Li, Yuchen Zhao, Lei Yan, Zhicheng Zhong, Yunzhong Chen, Hong Ding
Summary: A significant enhancement of Rashba spin-orbit coupling (RSOC) achieved at a superconducting amorphous-Hf0.5Zr0.5O2/KTaO3(110) heterointerface under light illumination is reported. The RSOC strength can be as high as 1.9 T in the normal state and increases to a peak value of 12.6 T under light illumination near the Lifshitz transition point, showing great potential for spintronics.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Parrydeep Kaur Sachdeva, Shuchi Gupta, Chandan Bera
Summary: In this work, the strain-coupled spin-valleytronic properties of monoclinic monochalcogenide tellurene monolayers in two stable phases (β-Te and β'-Te) were explored using first-principles calculations. The results show that β-Te and β'-Te exhibit high Rashba spin splittings and spin-valley oscillations under strain, which make them promising for device applications in low-power quantum electronics and other fields.
Article
Chemistry, Physical
J. J. Lu, R. Liu, F. F. Yue, X. W. Zhao, G. C. Hu, X. B. Yuan, J. F. Ren
Summary: Through first-principles calculations, we have discovered a two-dimensional MXene material, Y3N2O2, with spontaneous valley polarization (VP) that induces intrinsic anomalous valley Hall effect (AVHE). The VP can be linearly modulated, providing an effective control route for valley signals. By adjusting spin-orbit coupling, we have enhanced the VP in the proposed monolayer La3N2O2 to 100.4 meV, enabling easy achievement of AVHE. This work not only offers compelling AVHE material candidates but also presents a novel mindset for finding suitable valleytronic devices.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Peng Wang, Andrea Migliorini, See-Hun Yang, Jae-Chun Jeon, Ilya Kostanovskiy, Holger Meyerheim, Hyeon Han, Hakan Deniz, Stuart S. P. Parkin
Summary: The generation of spin currents from charge currents via the spin Hall effect (SHE) is of both fundamental and technological interest. This study found some of the largest SHEs yet observed via extrinsic scattering in a large class of binary compounds formed from a 5d element and aluminum, with a giant spin Hall angle (SHA) of approximate to 1 in the compound Os22Al78. The results demonstrate the importance of extrinsic mechanisms derived from potential mismatch as a route to obtaining large spin Hall angles with high technological impact.
ADVANCED MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Ye Du, Saburo Takahashi, Junsaku Nitta
Summary: The experimentally obtained spin current related magnetoresistance in epitaxial Pt/Co bilayers was analyzed using a drift-diffusion model incorporating both bulk spin Hall effect and interfacial Rashba-Edelstein effect. The analysis showed a temperature-independent Rashba parameter and an effective interfacial REE thickness at the Pt/Co interface, indicating the need to consider both bulk and interface charge-spin current interconversions in highly conductive magnetic heterostructures.
Article
Materials Science, Multidisciplinary
Priyadarshini Kapri, Bashab Dey, Tarun Kanti Ghosh
Summary: In this study, we investigate the Magnus transport in a gapped two-dimensional electron gas with Rashba spin-orbit coupling using semiclassical Boltzmann transport formalism. We find that the behavior of Magnus spin Hall conductivity and Nernst conductivity is affected by the mass gap and Fermi surface topology.
Article
Nanoscience & Nanotechnology
Shen Lai, Huiying Liu, Zhaowei Zhang, Jianzhou Zhao, Xiaolong Feng, Naizhou Wang, Chaolong Tang, Yuanda Liu, K. S. Novoselov, Shengyuan A. Yang, Wei-bo Gao
Summary: Nonlinear responses in transport measurements are linked to material properties not accessible at linear order due to distinct symmetry requirements. Recent experiments on ultrathin WTe2 demonstrate the connection between crystal structure and nonlinear response. Theory predicts that another intrinsic band geometric property, the Berry-connection polarizability tensor, may give rise to higher-order signals.
NATURE NANOTECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
Cheng Chi, Qiao Jiang, Zhixin Liu, Liheng Zheng, Meiling Jiang, Han Zhang, Feng Lin, Bo Shen, Zheyu Fang
Summary: The study demonstrates selective manipulation of photon spin angular momentum at a deep subwavelength scale via electron-induced OSHE in Au nanoantennas, suggesting an information encoding scheme with robustness, privacy, and high level of integration for future quantum applications.
Article
Physics, Multidisciplinary
Wenming Xue, Jin Li, Chaoyu He, Tao Ouyang, Xiongying Dai, Jianxin Zhong
Summary: In this study, a new two-dimensional material H-Pb-F with coexistence of giant Rashba spin splitting and quantum spin Hall effect was theoretically proposed and characterized by ab initio calculations. The material exhibits remarkable properties such as high value of Rashba spin splitting (1.21 eV⋅Å) and large topological gap (1.35 eV) suitable for observing topological edge states at room temperature.
Article
Optics
Elhanan Maguid, Igor Yulevich, Michael Yannai, Vladimir Kleiner, Mark L. Brongersma, Erez Hasman
LIGHT-SCIENCE & APPLICATIONS
(2017)
Article
Optics
Ronen Chriki, Elhanan Maguid, Chene Tradonsky, Vladimir Kleiner, Asher A. Friesem, Nir Davidson, Erez Hasman
Article
Multidisciplinary Sciences
Tomer Stav, Arkady Faerman, Elhanan Maguid, Dikla Oren, Vladimir Kleiner, Erez Hasman, Mordechai Segev
Article
Optics
Michael Yannai, Elhanan Maguid, Arkady Faerman, Qitong Li, Jung-Hwan Song, Vladimir Kleiner, Mark L. Brongersma, Erez Hasman
Article
Nanoscience & Nanotechnology
Michael Yannai, Elhanan Maguid, Arkady Faerman, Qitong Li, Jung-Hwan Song, Vladimir Kleiner, Mark L. Brongersma, Erez Hasman
Article
Nanoscience & Nanotechnology
Bo Wang, Kexiu Rong, Elhanan Maguid, Vladimir Kleiner, Erez Hasman
NATURE NANOTECHNOLOGY
(2020)
Article
Nanoscience & Nanotechnology
Kexiu Rong, Bo Wang, Avi Reuven, Elhanan Maguid, Bar Cohn, Vladimir Kleiner, Shaul Katznelson, Elad Koren, Erez Hasman
NATURE NANOTECHNOLOGY
(2020)
Article
Multidisciplinary Sciences
Yaniv Kurman, Raphael Dahan, Hanan Herzig Sheinfux, Kangpeng Wang, Michael Yannai, Yuval Adiv, Ori Reinhardt, Luiz H. G. Tizei, Steffi Y. Woo, Jiahan Li, James H. Edgar, Mathieu Kociak, Frank H. L. Koppens, Ido Kaminer
Summary: Investigating the dynamic phenomena of 2D polaritons in 2D materials requires the use of a ultrafast transmission electron microscope with simultaneous spatial and temporal imaging capabilities, which can reveal unknown coherent optical phenomena such as splitting of multibranch wave packets, wave packet deceleration, and acceleration.
Article
Chemistry, Multidisciplinary
Michael Yannai, Raphael Dahan, Alexey Gorlach, Yuval Adiv, Kangpeng Wang, Ivan Madan, Simone Gargiulo, Francesco Barantani, Eduardo J. C. Dias, Giovanni Maria Vanacore, Nicholas Rivera, Fabrizio Carbone, F. Javier Garcia de Abajo, Ido Kaminer
Summary: The ultrafast dynamics of charge carriers in solids is crucial for emerging optoelectronics, photonics, energy harvesting, and quantum technology applications. However, investigating and visualizing such nonequilibrium phenomena at nanometer-femtosecond scales has been a longstanding challenge. In this study, we propose and demonstrate a new interaction mechanism called charge dynamics electron microscopy (CDEM), which enables nanoscale imaging of the femtosecond dynamics of charge carriers in solids. By exploiting the strong interaction of free-electron pulses with terahertz (THz) near fields created by moving charges, we can directly retrieve the THz near-field amplitude and phase, reconstruct movies of the generated charges, and investigate previously inaccessible spatiotemporal regimes of charge dynamics in solids.
Article
Chemistry, Multidisciplinary
Ivan Madan, Eduardo J. C. Dias, Simone Gargiulo, Francesco Barantani, Michael Yannai, Gabriele Berruto, Thomas LaGrange, Luca Piazza, Tom T. A. Lummen, Raphael Dahan, Ido Kaminer, Giovanni Maria Vanacore, F. Javier Garcia de Abajo, Fabrizio Carbone
Summary: Understanding and actively controlling the dynamics of nonequilibrium electron clouds is crucial for various applications. However, these clouds evolve in a complex manner on small scales, making them difficult to study. In this study, we use an ultrafast transmission electron microscope to solve the challenge of characterizing the evolution of electron clouds generated on metallic structures, providing insights into their intricate mechanisms and dynamics. This technique, known as charge dynamics electron microscopy (CDEM), opens up possibilities for studying a wide range of nonequilibrium electrodynamic phenomena on the nanoscale.
Article
Chemistry, Multidisciplinary
Eduardo J. C. Dias, Ivan Madan, Simone Gargiulo, Francesco Barantani, Michael Yannai, Giovanni Maria Vanacore, Ido Kaminer, Fabrizio Carbone, F. Javier Garcia de Abajo
Summary: We develop a comprehensive microscopic theory to predict the spatiotemporal dynamics of laser-pulse-induced plasmas, and study the characteristics of terahertz fields generated through electron emission, metal screening, and plasma cloud interactions. We also investigate the interaction with femtosecond electron beams and explain recent ultrafast electron microscopy experiments. Our work contributes fundamental insight into the generation and dynamics of micron-scale electron plasmas and their interaction with ultrafast electron pulses.
NANOSCALE ADVANCES
(2023)