Large spin-orbit torque efficiency enhanced by magnetic structure of collinear antiferromagnet IrMn (Conference Presentation)

2019 ◽  
Author(s):  
Jingsheng Chen
Keyword(s):  
Magnetic Structure ◽  
Spin Orbit ◽  
Large Spin

scholarly journals Large spin-orbit torque efficiency enhanced by magnetic structure of collinear antiferromagnet IrMn

2019 ◽  
Vol 5 (5) ◽  
pp. eaau6696 ◽  
Author(s):  
Jing Zhou ◽  
Xiao Wang ◽  
Yaohua Liu ◽  
Jihang Yu ◽  
Huixia Fu ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Magnetic Structure ◽  
Ferromagnetic Resonance ◽  
Energy Efficient ◽  
Spin Torque ◽  
Memory Devices ◽  
Spin Orbit ◽  
Efficient Memory ◽  
Shed Light ◽  
Large Spin

Spin-orbit torque (SOT) offers promising approaches to developing energy-efficient memory devices by electric switching of magnetization. Compared to other SOT materials, metallic antiferromagnet (AFM) potentially allows the control of SOT through its magnetic structure. Here, combining the results from neutron diffraction and spin-torque ferromagnetic resonance experiments, we show that the magnetic structure of epitaxially grown L10-IrMn (a collinear AFM) is distinct from the widely presumed bulk one. It consists of twin domains, with the spin axes orienting toward [111] and [−111], respectively. This unconventional magnetic structure is responsible for much larger SOT efficiencies up to 0.60 ± 0.04, compared to 0.083 ± 0.002 for the polycrystalline IrMn. Furthermore, we reveal that this magnetic structure induces a large isotropic bulk contribution and a comparable anisotropic interfacial contribution to the SOT efficiency. Our findings shed light on the critical roles of bulk and interfacial antiferromagnetism to SOT generated by metallic AFM.

scholarly journals Spin-orbit coupling induced magnetic anisotropy and large spin wave gap in NaOsO3

2018 ◽  
Vol 2 (11) ◽  
pp. 115016 ◽  
Author(s):  
Avinash Singh ◽  
Shubhajyoti Mohapatra ◽  
Churna Bhandari ◽  
Sashi Satpathy
Keyword(s):  
Magnetic Anisotropy ◽  
Spin Wave ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Induced Magnetic Anisotropy ◽  
Spin Wave Gap ◽  
Large Spin

Engineering magnetic heterostructures to obtain large spin Hall efficiency for spin-orbit torque devices

2018 ◽  
Vol 113 (2) ◽  
pp. 022402 ◽  
Author(s):  
Lisen Huang ◽  
Shikun He ◽  
Qi Jia Yap ◽  
Sze Ter Lim
Keyword(s):  
Spin Orbit ◽  
Magnetic Heterostructures ◽  
Large Spin

ChemInform Abstract: Structure and Properties of Ir-Containing Oxides with Large Spin-Orbit Coupling: Ba2In2-xIrxO5+δ.

ChemInform ◽  
2016 ◽  
Vol 47 (21) ◽  
Author(s):  
Joshua Flynn ◽  
Jun Li ◽  
Arthur W. Sleight ◽  
Arthur P. Ramirez ◽  
M. A. Subramanian
Keyword(s):  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Structure And Properties ◽  
Abstract Structure ◽  
Large Spin

Magnetic states in quasi-2-D iridium oxides with large spin-orbit coupling

2013 ◽  
Vol 63 (3) ◽  
pp. 394-397
Author(s):  
Masaaki Isobe ◽  
Hirotaka Okabe ◽  
Jun Akimitsu
Keyword(s):  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Iridium Oxides ◽  
Magnetic States ◽  
Large Spin

Large spin-orbit torques in Pt/Co-Ni/W heterostructures

2016 ◽  
Vol 109 (4) ◽  
pp. 042403 ◽  
Author(s):  
Jiawei Yu ◽  
Xuepeng Qiu ◽  
William Legrand ◽  
Hyunsoo Yang
Keyword(s):  
Spin Orbit ◽  
Large Spin

scholarly journals Evolution of magnetic structure driven by synthetic spin-orbit coupling in a two-component Bose-Hubbard model

2014 ◽  
Vol 90 (8) ◽  
Author(s):  
Jize Zhao ◽  
Shijie Hu ◽  
Jun Chang ◽  
Fawei Zheng ◽  
Ping Zhang ◽  
...  
Keyword(s):  
Hubbard Model ◽  
Magnetic Structure ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Two Component
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