Article
Materials Science, Multidisciplinary
Huan Wang, Xiao-Ping Ma, Xiang-Yu Zeng, Jing Gong, Jun-Fa Lin, Xiao-Yan Wang, Zheng-Yi Dai, Kun Han, Yi-Ting Wang, Tian-Long Xia
Summary: The recent discoveries of large anomalous Hall effect (AHE) and topological Hall effect (THE) in antiferromagnets have led to intense study in theories and experiments. In this study, the magnetic and electrical transport properties of a layered antiferromagnet V0.3NbS2 were investigated. The material showed antiferromagnetic order below 53 K and exhibited weak magnetic hysteresis with a small net magnetization along the c axis. AHE was observed in this antiferromagnet, which is of particular interest due to the near-perfect cancellation of moment. THE was also detected at low temperatures, acting as a probe for spin reorientation in the magnetization process induced by field. This study provides a platform for studying AHE in antiferromagnets.
Article
Physics, Multidisciplinary
Wenguo Zhu, Huadan Zheng, Yongchun Zhong, Jianhui Yu, Zhe Chen
Summary: This research demonstrates a novel wave-vector-varying PB phase that naturally arises in transmission and reflection processes for paraxial beams with small incident angles. This new photonic spin Hall effect can address the contradiction between spin separation and energy efficiency in the conventional PSHE.
PHYSICAL REVIEW LETTERS
(2021)
Article
Materials Science, Multidisciplinary
Huiying Liu, Jianzhou Zhao, Yue-Xin Huang, Xiaolong Feng, Cong Xiao, Weikang Wu, Shen Lai, Wei-bo Gao, Shengyuan A. Yang
Summary: The text discusses the importance of band geometric quantities in physical effects in modern condensed matter physics, using examples of Berry curvature and Berry curvature dipole connected to Hall effects. Furthermore, it introduces the role of the Berry connection polarizability (BCP) tensor in the third-order Hall effect and presents a theory for the third-order charge transport. The study applies this theory to the Dirac model in two dimensions and demonstrates its application in studying materials like monolayer FeSe.
Review
Materials Science, Multidisciplinary
Shuai Li, C. M. Wang, Z. Z. Du, Fang Qin, Hai-Zhou Lu, X. C. Xie
Summary: The perspective introduces the emergent 3D quantum Hall effects and nonlinear Hall effect, discussing their significance in advancing the understanding of Hall physics and exploring future research directions.
NPJ QUANTUM MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Hui Yang, Junjie Zeng, Yulei Han, Zhenhua Qiao
Summary: We investigated the localization mechanisms of the quantum anomalous Hall effect in bilayer graphene and magnetic topological insulator thin films with different types of disorder. We found that the phase transition behaviors in the two systems are completely different when different types of disorder are present.
Article
Multidisciplinary Sciences
Xiaokang Li, Jahyun Koo, Zengwei Zhu, Kamran Behnia, Binghai Yan
Summary: The anomaly and topological hall effects are both related to berry curvature, which can be found in both momentum space and real space. In this study, Li et al present a unique example of a combined berry curvature in Mn3Sn, which leads to a large field linear anomalous Hall effect. They find that the spin chirality induced by the magnetic field modifies the band structure topology and explains the observed anomalous Hall effect.
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Masaki Uchida, Shin Sato, Hiroaki Ishizuka, Ryosuke Kurihara, Taro Nakajima, Yusuke Nakazawa, Mizuki Ohno, Markus Kriener, Atsushi Miyake, Kazuki Ohishi, Toshiaki Morikawa, Mohammad Saeed Bahramy, Taka-hisa Arima, Masashi Tokunaga, Naoto Nagaosa, Masashi Kawasaki
Summary: The study of the magnetic semiconductor EuAs revealed a new mechanism for inducing large anomalous Hall effect (AHE) in magnetic semiconductors through spin cluster scattering. This suggests potential for developing a field targeting diluted carriers strongly coupled to noncoplanar spin structures.
Article
Physics, Multidisciplinary
D. A. Mayoh, J. Bouaziz, A. E. Hall, J. B. Staunton, M. R. Lees, G. Balakrishnan
Summary: Cr1/3NbS2 hosts a magnetic chiral soliton lattice and exhibits a giant planar Hall effect and unconventional Hall component.
PHYSICAL REVIEW RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
David A. Reiss, Tobias Kampfrath, Piet W. Brouwer
Summary: The study focuses on the spin-Hall magnetoresistance (SMR) and its associated off-diagonal conductivity corrections, revealing a systematic change in SMR magnitude at lower frequencies linked to the longitudinal magnonic contribution across the F-N interface.
Article
Astronomy & Astrophysics
Kazuya Mameda, Naoki Yamamoto, Di-Lun Yang
Summary: Based on quantum field theory, we have developed the Wigner function and quantum kinetic theory for polarized photons in curved spacetimes. In a rigidly rotating coordinate, we can reproduce the photonic chiral/zilch vortical effects. In a spatially inhomogeneous coordinate, we derive the spin Hall effect for the photon helicity current and energy current in equilibrium. Our derivation reveals the relationship between these photonic Hall effects and the photonic vortical effect, and their transport coefficients match each other.
Article
Multidisciplinary Sciences
Jianbo Yin, Cheng Tan, David Barcons-Ruiz, Iacopo Torre, Kenji Watanabe, Takashi Taniguchi, Justin C. W. Song, James Hone, Frank H. L. Koppens
Summary: This study reports the direct observation of in situ tunable valley-selective Hall effect and demonstrates the control of geometric phase of electrons using an out-of-plane electric field. The researchers used high-quality bilayer graphene and circularly polarized midinfrared light to observe the optically induced valley population and found a significantly larger valley-selective Hall effect compared to molybdenum disulfide. By monitoring the valley-selective Hall conductivity, the researchers studied the evolution of Berry curvature with bandgap.
Article
Chemistry, Multidisciplinary
Jino Im, Choong H. Kim, Hosub Jin
Summary: This study reveals that polar lattice distortion can directly couple to the Berry curvature (BC) dipole of phonons, leading to a switchable nonlinear phonon Hall effect. They observed the phononic version of the BC memory effect and the phonon Rashba effect in a SnS monolayer, where in-plane ferroelectricity induces a phonon BC and opens a mass gap in tilted Weyl phonon modes. Furthermore, their ab initio non-equilibrium molecular dynamics simulations demonstrate controllable nonlinear phonon Hall transport via ferroelectric switching.
Article
Nanoscience & Nanotechnology
Mithun Ghosh, P. D. Babu, P. S. Anil Kumar
Summary: In this study, the longitudinal resistivity, anisotropic magnetoresistance (MR), and Hall effect of epitaxial Nd2Ir2O7 (111) thin films were investigated. The results showed that the magnetic structure of Ir4+ 5d moments could be tuned by applying a magnetic field along different crystallographic directions. A large spontaneous Hall effect (SHE) signal and a topological-like Hall signal were observed, indicating the presence of Weyl semimetallic phase and multiple Weyl nodes in the electronic band structure of the films.
Article
Materials Science, Multidisciplinary
P. O. Sukhachov, Bjoern Trauzettel
Summary: The role of the chiral anomaly in the hydrodynamic and crossover regimes of transport in Weyl or Dirac semimetal films has been investigated. It was shown that the electric conductivity in the direction of the magnetic field exhibits an unusual nonmonotonic dependence on temperature, referred to as the anomalous Gurzhi effect. This effect occurs in clean semimetals under a weak magnetic field, with electron-electron scattering dominating and relaxation of valley-imbalance charge density occurring at the boundaries. Additionally, the conditions for the conventional Gurzhi effect in hydrodynamic and crossover transport regimes in three-dimensional Dirac and Weyl semimetals have been determined.
Article
Multidisciplinary Sciences
S. Galeski, T. Ehmcke, R. Wawrzynczak, P. M. Lozano, K. Cho, A. Sharma, S. Das, F. Kuester, P. Sessi, M. Brando, R. Kuchler, A. Markou, M. Konig, P. Swekis, C. Felser, Y. Sassa, Q. Li, G. Gu, M. Zimmermann, O. Ivashko, D. Gorbunov, S. Zherlitsyn, T. Foerster, S. S. P. Parkin, J. Wosnitza, T. Meng, J. Gooth
Summary: A 3D quantum Hall effect has been observed in the Dirac semimetal ZrTe5 due to a magnetic-field-driven Fermi surface instability. The study shows evidence of quasi-quantized Hall response without Fermi surface instability, attributing it to the interplay between the intrinsic properties of ZrTe5 electronic structure and its Dirac semi-metallic character.
NATURE COMMUNICATIONS
(2021)
Article
Physics, Applied
B. Sarabi, A. N. Ramanayaka, A. L. Burin, F. C. Wellstood, K. D. Osborn
APPLIED PHYSICS LETTERS
(2015)
Article
Engineering, Electrical & Electronic
H. M. Iftekhar Jaim, J. A. Aguilar, B. Sarabi, Y. J. Rosen, A. N. Ramanayaka, E. H. Lock, C. J. K. Richardson, K. D. Osborn
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
(2015)
Article
Physics, Multidisciplinary
B. Sarabi, A. N. Ramanayaka, A. L. Burin, F. C. Wellstood, K. D. Osborn
PHYSICAL REVIEW LETTERS
(2016)
Article
Multidisciplinary Sciences
A. N. Ramanayaka, Hyun-Soo Kim, Ke Tang, X. Wang, R. M. Silver, M. D. Stewart, J. M. Pomeroy
SCIENTIFIC REPORTS
(2018)
Article
Physics, Condensed Matter
A. N. Ramanayaka, Tianyu Ye, H. -C. Liu, W. Wegscheider, R. G. Mani
PHYSICA B-CONDENSED MATTER
(2014)
Article
Materials Science, Multidisciplinary
A. N. Ramanayaka, R. G. Mani, W. Wegscheider
Article
Materials Science, Multidisciplinary
R. G. Mani, A. N. Ramanayaka, W. Wegscheider
Article
Materials Science, Multidisciplinary
A. N. Ramanayaka, R. G. Mani, J. I. Inarrea, W. Wegscheider
Article
Materials Science, Multidisciplinary
R. G. Mani, A. N. Ramanayaka, Tianyu Ye, M. S. Heimbeck, H. O. Everitt, W. Wegscheider
Article
Nanoscience & Nanotechnology
A. N. Ramanayaka, Hyun-Soo Kim, J. A. Hagmann, R. E. Murray, Ke Tang, F. Meisenkothen, H. R. Zhang, L. A. Bendersky, A. V. Davydov, Neil M. Zimmerman, C. A. Richter, J. M. Pomeroy