612 citations · 3.1k across the 120 of their papers we have counts for
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Intrinsic Spin Hall Conductivity of MoTe2 and WTe2 Semimetals
Jiaqi Zhou, Junfeng Qiao, Arnaud Bournel +1
We report a comprehensive study on the intrinsic spin Hall conductivity (SHC) of semimetals MoTe2 and WTe2 by ab initio calculation. Large SHC and desirable spin Hall angles have b…
Enhancement of Spintronic Terahertz Emission via Annealing in Ferromagnetic Heterostructures
Xiaojun Wu, Yang Gao, Yanbin He +11
We systematically investigate the influence of annealing effect on terahertz (THz) generation from CoFeB based magnetic nanofilms driven by femtosecond laser pulses. Three times en…
Low-Power (1T1N) Skyrmionic Synapses for Spiking Neuromorphic Systems
Tinish Bhattacharya, Sai Li, Yangqi Huang +3
In this work, we propose a `1-transistor 1-nanotrack' (1T1N) synapse based on movement of magnetic skyrmions using spin polarised current pulses. The proposed synaptic bit-cell has…
A Scalable Pipelined Dataflow Accelerator for Object Region Proposals on FPGA Platform
Wenzhi Fu, Jianlei Yang, Pengcheng Dai +2
Region proposal is critical for object detection while it usually poses a bottleneck in improving the computation efficiency on traditional control-flow architectures. We have obse…
Calculation of intrinsic spin Hall conductivity by Wannier interpolation
Junfeng Qiao, Jiaqi Zhou, Zhe Yuan +1
\textit{Ab-initio} calculation of intrinsic spin Hall conductivity (SHC) generally requires a strict convergence criterion and a dense k-point mesh to sample the Brillouin zone, ma…
Energy-efficient domain wall motion governed by the interplay of helicity-dependent optical effect and spin-orbit torque
Boyu Zhang, Yong Xu, Weisheng Zhao +6
Spin-orbit torque provides a powerful means of manipulating domain walls along magnetic wires. However, the current density required for domain wall motion is still too high to rea…
Broadband Magnetic-Manipulated Spintronic Terahertz Emitter with Arbitrarily Tunable Polarizations
Xiaojun Wu, Deyin Kong, Tianxiao Nie +10
Flexible manipulation of terahertz-wave polarization during the generation process is very important for terahertz applications, especially for the next-generation on-chip function…
Large phase-transition-induced magnetic anisotropy change in (Co/Pt)2/VO2 heterostructure
Guodong Wei, Xiaoyang Lin, Zhizhong Si +3
We report the phase-transition controlled magnetic anisotropy modulation in the (Co/Pt)2/VO2 heterostructure, where VO2 is introduced into the system to applied an interfacial stra…
Femtosecond control of terahertz spin-charge conversion in ferromagnetic heterostructures
Xiaojun Wu, Tianxiao Nie, Bo Wang +11
Employing electron spin instead of charge to develop spintronic devices holds the merits of low-power consumption in information technologies. Meanwhile, the demand for increasing…
Field-free switching of perpendicular magnetic tunnel junction by the interplay of spin orbit and spin transfer torques
Mengxing Wang, Wenlong Cai, Daoqian Zhu +11
Spin-orbit torque and spin-transfer torque are leading the pathway to the future of spintronic memories. However, both of the mechanisms are suffering from intrinsic limitations. I…
Efficient technique for ab-initio calculation of magnetocrystalline anisotropy energy
Junfeng Qiao, Weisheng Zhao
Ab-initio calculation of magnetocrystalline anisotropy energy (MCAE) often requires a strict convergence criterion and a dense k-point mesh to sample the Brillouin zone, making its…
Optical control of magnetism in NiFe/VO2 heterostructures
Guodong Wei, Xiaoyang Lin, Zhizhong Si +9
Optical methods for magnetism manipulation have been considered as a promising strategy for ultralow-power and ultrahigh-speed spin switches, which becomes a hot spot in the field…
Field-Free Switching of Perpendicular Magnetic Tunnel Junction via Voltage-Gated Spin Hall Effect for Low-Power Spintronic Memory
Shouzhong Peng, Xiang Li, Wang Kang +7
Spin Hall effect (SHE) and voltage-controlled magnetic anisotropy (VCMA) are two promising methods for low-power electrical manipulation of magnetization. Recently, magnetic field-…
Dynamics of a magnetic skyrmionium driven by spin waves
Sai Li, Jing Xia, Xichao Zhang +5
The magnetic skyrmionium is a skyrmion-like structure but carries a zero net skyrmion number, which can be used as a building block for non-volatile information processing devices.…
Voltage-Driven High-Speed Skyrmion Motion in a Skyrmion Shift Device
Yizheng Liu, Na Lei, Chengxiang Wang +7
Magnetic skyrmions are promising information carriers for building future high-density and high-speed spintronic devices. However, to achieve a current-driven high-speed skyrmion m…
Skyrmions in magnetic tunnel junctions
Xueying Zhang, Wenlong Cai, Xichao Zhang +10
In this work, we demonstrate that skyrmions can be nucleated in the free layer of a magnetic tunnel junction (MTJ) with Dzyaloshinskii-Moriya interactions (DMI) by a spin-polarized…
Ultra-Fast Ferrimagnetic All Spin Logic Device
Yue Zhang, Zhizhong Zhang, Zhenyi Zheng +7
All spin logic device (ASLD) blazes an alternative path for realizing ultra-low power computing in the Post-Moore era. However, initial device structure relying on ferromagnetic in…
Intelligent Identification of Two-Dimensional Structure by Machine-Learning Optical Microscopy
Xiaoyang Lin, Zhizhong Si, Wenzhi Fu +9
Two-dimensional (2D) materials and their heterostructures, with wafer-scale synthesis methods and fascinating properties, have attracted numerous interest and triggered revolutions…
Exploiting Spin-Orbit Torque Devices as Reconfigurable Logic for Circuit Obfuscation
Jianlei Yang, Xueyan Wang, Qiang Zhou +5
Circuit obfuscation is a frequently used approach to conceal logic functionalities in order to prevent reverse engineering attacks on fabricated chips. Efficient obfuscation implem…
Tunneling magnetoresistance enhancement by symmetrization in spin-orbit torque magnetic tunnel junction
Jiaqi Zhou, Weisheng Zhao, Kaihua Cao +3
Heavy metals with strong spin-orbit coupling (SOC) have been employed to generate spin current to control the magnetization dynamics by spin-orbit torque (SOT). Magnetic tunnel jun…