Article
Multidisciplinary Sciences
Yuki Hibino, Tomohiro Taniguchi, Kay Yakushiji, Akio Fukushima, Hitoshi Kubota, Shinji Yuasa
Summary: The study elucidates a mechanism behind the enhancement of magnetic-dependent charge-to-spin conversion in ferromagnetic materials, highlighting the dominant role of interfacial contribution and the potential for control via interfacial band engineering. It shows that the efficiency of charge-to-spin conversion in ferromagnets surpasses other materials with reduced symmetry.
NATURE COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
D. C. Cavanagh, Daniel F. Agterberg, P. M. R. Brydon
Summary: We investigate the effect of symmetry-breaking perturbations on superconductivity in multiorbital materials, focusing on the influence of an external magnetic field. We introduce the field-fitness function to characterize the disruption of pair formation due to the perturbation. In even-parity superconductors, the field-fitness function for an external magnetic field is unity, indicating that the paramagnetic response is determined solely by a generalized effective g-factor. For odd-parity superconductors, the interplay between the effective g-factor and the field-fitness function can result in counterintuitive outcomes. We demonstrate this phenomenon in the p-wave pairing of the effective j=32 electronic states in the Luttinger-Kohn model.
Article
Chemistry, Multidisciplinary
Karolina Gornicka, Xin Gui, Bartlomiej Wiendlocha, Loi T. Nguyen, Weiwei Xie, Robert J. Cava, Tomasz Klimczuk
Summary: The search for new superconducting materials remains a challenge, even though superconductivity was first observed over a century ago. The newly reported materials, NbIr(2)B(2) and TaIr2B2, display unique noncentrosymmetric crystal structures and unconventional superconductivity, as indicated by experimental and theoretical evidence. These materials may serve as an excellent platform for studying unconventional superconductivity in intermetallic compounds.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Yuanjie Chen, Shaoyun Huang, Dong Pan, Jianhong Xue, Li Zhang, Jianhua Zhao, H. Q. Xu
Summary: A dual-gate InSb nanosheet field-effect device is used to investigate the controllability of spin-orbit interaction in InSb nanosheet, demonstrating efficient tuning of the interaction. The presence of intrinsic spin-orbit interaction in InSb nanosheet is identified at zero dual-gate voltage, with its physical origin attributed to built-in asymmetry in the device layer structure.
NPJ 2D MATERIALS AND APPLICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Jia-Xin Xiong, Shan Guan, Jun-Wei Luo, Shu-Shen Li
Summary: Contrary to conventional wisdom, a strong and tunable k-linear Rashba SOC has been discovered in Ge/Si semiconductor quantum wells, originating from a combination of heavy-hole-light-hole mixing and direct dipolar coupling to the external electric field. Ge/Si QWs oriented in the [110] direction exhibit a much stronger linear Rashba SOC compared to their [001] counterparts, making them an excellent platform for large-scale quantum computation.
Article
Optics
Cristian Tabares, Erez Zohar, Alejandro Gonzalez-Tudela
Summary: This study demonstrates how to utilize multilevel emitters to design photon-mediated interactions between effective spin-1 systems and provides specific implementations based on the atomic level structure of alkali atoms. These results expand the application of the quantum simulation toolbox and enable the design of entangling gates among qutrits in cavity QED and quantum nanophotonic setups.
Article
Physics, Multidisciplinary
GuoRui Xiao, QinQing Zhu, YanWei Cui, WuZhang Yang, BaiZhuo Li, SiQi Wu, Guang-Han Cao, Zhi Ren
Summary: A new noncentrosymmetric phosphide ThIrP has been synthesized and characterized, exhibiting intermediate coupling and type-II superconducting properties with possibly multiple gaps below the critical temperature. Physical property measurements have determined the upper critical magnetic field, Sommerfield coefficient, and Ginzburg-Laudau parameter of the compound.
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
(2021)
Article
Chemistry, Multidisciplinary
Pengwei Dou, Jingyan Zhang, Yaqin Guo, Tao Zhu, Jia Luo, Guoping Zhao, He Huang, Guoqiang Yu, Yunchi Zhao, Jie Qi, Xiao Deng, Yuanbo Wang, Jialiang Li, Jianxin Shen, Xinqi Zheng, Yanfei Wu, Hongxin Yang, Baogen Shen, Shouguo Wang
Summary: This study reports on all electric-controlled magnetization switching in antiferromagnetic Co/Ir/Co trilayers with vertical magnetic imbalance. The switching polarity can be reversed by optimizing the Ir thickness. The polarized neutron reflection measurements reveal a canted noncollinear spin configuration in Co/Ir/Co trilayers, resulting from magnetic inhomogeneity. Micromagnetic simulations demonstrate asymmetric domain walls, caused by introduced imbalance magnetism, leading to deterministic magnetization switching in Co/Ir/Co trilayers.
Article
Physics, Multidisciplinary
Yunrong Luo, Xuemei Wang, Jia Yi, Wenjuan Li, Xin Xie, Zhida Luo, Wenhua Hai
Summary: Exact analytic solutions for a single spin-orbit-coupled ultracold atom in a driven double well are generated using a simple method of combined modulations. Accurate solutions are obtained for synchronous combined modulations and spin-conserving tunneling, as well as for spin-flipping tunneling under asynchronous combined modulations with appropriate driving parameters. The obtained solutions reveal intriguing quantum spin dynamical phenomena, including arbitrary coherent population transfer, controlled coherent population conservation, and controlled coherent population inversion. These results offer possibilities for generating accurate quantum entangled states and precise control of spin dynamics in a spin-orbit-coupled ultracold atomic system.
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2023)
Article
Nanoscience & Nanotechnology
Satam Alotibi, Bryan J. Hickey, Gilberto Teobaldi, Mannan Ali, Joseph Barker, Emiliano Poli, David D. O'Regan, Quentin Ramasse, Gavin Burnell, James Patchett, Chiara Ciccarelli, Mohammed Alyami, Timothy Moorsom, Oscar Cespedes
Summary: The study found that the spin Hall magnetoresistance for Pt/C-60 and Ta/C-60 is up to a factor of 6 higher than those for pristine metals, indicating a 20-60% increase in the spin Hall angle. Additionally, the presence of C-60 increased the anisotropic magnetoresistance by up to 700% at low fields.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Matias Berdakin, Esteban A. Rodriguez-Mena, Luis E. F. Foa Torres
Summary: Researchers studied the interaction among laser illumination, spin, and topology in a two-dimensional material with spin-orbit coupling using Floquet scattering theory and atomistic models, showing how laser illumination can disrupt topological edge states and generate pure spin photocurrents and spin-polarized charge photocurrents. This paves the way for the generation and control of spin-polarized photocurrents.
Article
Materials Science, Multidisciplinary
Wei Xiong, Miao Tian, Guo-Qiang Zhang, J. Q. You
Summary: This study proposes a scheme to achieve strong coupling between distant spins through the Kerr effect of magnons. By applying a microwave field, the Kerr effect of magnons can induce magnon squeezing, enhancing the coupling between spins and squeezed magnons. This approach allows for an increase in spin-magnon distance and enables remote quantum-state transfer and high-fidelity nonlocal two-qubit gates to be implemented.
Article
Materials Science, Multidisciplinary
Suik Cheon, Gil Young Cho, Ki-Seok Kim, Hyun-Woo Lee
Summary: This article discusses the possibility of realizing the chiral anomaly in noncentrosymmetric systems without pairs of Weyl points, where spin-orbit coupling induces nonzero Berry curvature flux through Fermi surfaces. This phenomenon affects both charge and spin transport properties, leading to the emergence of new physical effects.
Article
Physics, Multidisciplinary
Yang He, Na Li, Ivano E. Castelli, Ruoning Li, Yajie Zhang, Xue Zhang, Chao Li, Bingwu Wang, Song Gao, Lianmao Peng, Shimin Hou, Ziyong Shen, Jing-Tao Lu, Kai Wu, Per Hedegard, Yongfeng Wang
Summary: Investigation of intermolecular electron spin interaction is fundamental in science and technology. In this study, radical pairs of all-trans retinoic acid molecules were created on Au(111) and antiferromagnetic coupling between two radicals was identified. The coupling is mediated through O-H hydrogen bonds.
PHYSICAL REVIEW LETTERS
(2022)
Article
Instruments & Instrumentation
Giacomo Jarc, Shahla Yasmin Mathengattil, Francesca Giusti, Maurizio Barnaba, Abhishek Singh, Angela Montanaro, Filippo Glerean, Enrico Maria Rigoni, Simone Dal Zilio, Stephan Winnerl, Daniele Fausti
Summary: We report the realization and commissioning of an experiment dedicated to studying the optical properties of light-matter hybrids in crystalline samples embedded in an optical cavity. The experimental setup allows for the investigation of weak and strong coupling regimes between a tunable optical cavity and low energy degrees of freedom. The setup includes the positioning of crystalline samples in cavities of different quality factors, tuning of cavity length at cryogenic temperatures, and optical characterization using a broadband THz spectrometer. The versatility of the setup is demonstrated by studying vibrational strong coupling in CuGeO3 single crystal at cryogenic temperatures.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2022)
Article
Multidisciplinary Sciences
Chuan-Hsun Li, Chunlei Qu, Robert J. Niffenegger, Su-Ju Wang, Mingyuan He, David B. Blasing, Abraham J. Olson, Chris H. Greene, Yuli Lyanda-Geller, Qi Zhou, Chuanwei Zhang, Yong P. Chen
NATURE COMMUNICATIONS
(2019)
Article
Physics, Multidisciplinary
Michael A. Perlin, Chunlei Qu, Ana Maria Rey
PHYSICAL REVIEW LETTERS
(2020)
Article
Physics, Multidisciplinary
Xi-Wang Luo, Chuanwei Zhang
Summary: The study explores the Moiré physics emerging from twisting two independent hexagonal optical lattices of atomic spin states, showing potential for magic twist angles to support gapped flat bands. Enhanced density of states near the flat bands can lead to superfluidity driven by weak attractive interactions, with the superfluid phase corresponding to a Larkin-Ovchinnikov state with finite momentum pairing. This work may lead to novel quantum phases and twistronics in cold atomic systems.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Multidisciplinary
Fangzhao Alex An, Bhuvanesh Sundar, Junpeng Hou, Xi-Wang Luo, Eric J. Meier, Chuanwei Zhang, Kaden R. A. Hazzard, Bryce Gadway
Summary: The concept of synthetic dimensions has played a key role in analog simulation in atomic, molecular, and optical systems, leading to rapid advances in single-particle Hamiltonian engineering. However, strong interaction effects are conspicuously absent from most synthetic dimensions platforms. Research shows that in a lattice of coupled atomic momentum states, atomic interactions result in large and qualitative changes to dynamics in the synthetic dimension, enriching the dynamics of a one-band tight-binding model with nonlinear interactions and coherent tunneling.
PHYSICAL REVIEW LETTERS
(2021)
Article
Optics
Jianming Wen, Irina Novikova, Chen Qian, Chuanwei Zhang, Shengwang Du
Summary: By proposing a new scheme to remotely generate hybrid entanglement between discrete polarization and continuous quadrature optical qubits heralded by two-photon Bell-state measurement, the study explores potential applications of hybrid entanglement in quantum information processing and communications through examples of entanglement swapping and quantum teleportation.
Article
Physics, Multidisciplinary
Jun Hui See Toh, Katherine C. McCormick, Xinxin Tang, Ying Su, Xi-Wang Luo, Chuanwei Zhang, Subhadeep Gupta
Summary: In this study, the evolution of dynamically localized states in an interacting one-dimensional ultracold gas periodically kicked by a pulsed optical lattice was experimentally studied. The interaction was found to lead to the emergence of dynamical delocalization and many-body quantum chaos.
Article
Physics, Multidisciplinary
Mengxiang Zhang, Xinxing Yuan, Yue Li, Xi-Wang Luo, Chang Liu, Mingdong Zhu, Xi Qin, Chuanwei Zhang, Yiheng Lin, Jiangfeng Du
Summary: In this study, we experimentally explore the transitions between different types of triply degenerate points (TDPs) and observe the phase transitions using Berry flux measurement. We demonstrate the controllability of a multilevel ion as a versatile platform to study high-spin physics, paving the way for exploring novel topological phenomena.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Multidisciplinary
Santosh Kumar, Zhaotong Li, Ting Bu, Chunlei Qu, Yuping Huang
Summary: This paper presents a nonlinear optical Ising machine using spatial light modulators to find distinct phase transitions, providing a more efficient platform for solving optimization problems. Optical Ising machines promise to solve complex optimization problems with an optical hardware acceleration advantage.
COMMUNICATIONS PHYSICS
(2023)
Article
Physics, Multidisciplinary
Ying Su, Heqiu Li, Chuanwei Zhang, Kai Sun, Shi-Zeng Lin
Summary: This research demonstrates a generic mechanism to achieve topological flat minibands by confining massive Dirac fermions in a periodic moiré potential. It clarifies the importance of Dirac structure for the topological minibands and unveils a general strategy to design topological moire materials.
PHYSICAL REVIEW RESEARCH
(2022)
Article
Optics
Guan-Qiang Li, Xi-Wang Luo, Junpeng Hou, Chuanwei Zhang
Summary: Recent experimental progress has been made in observing long-sought supersolidlike states and superfluid stripe ground states in Bose-Einstein condensates. The study shows that these two symmetry breaking mechanisms can be distinguished by their collective excitation spectra, with experimental evidence for gapped pseudo-Goldstone modes in the forced stripe phase. This work may pave the way for exploring spontaneous and forced or approximate symmetry breaking mechanisms in different physical systems.
Article
Optics
Chunlei Qu, Ana M. Rey
Article
Physics, Multidisciplinary
Junpeng Hou, Xi-Wang Luo, Kuei Sun, Chuanwei Zhang
Article
Optics
Matthew Maisberger, Lin-Cheng Wang, Kuei Sun, Yong Xu, Chuanwei Zhang
Article
Optics
Xi-Wang Luo, Chuanwei Zhang, Guang-Can Guo, Zheng-Wei Zhou
