Sensitively Temperature-Dependent Spin-Orbit Coupling in SrIrO^sub 3^ Thin Films

Spin-orbit coupling induces nonperturbation effects in many recently developed novel fields including topological insulators and spin-orbit assistant Mott insulators. In this study, strongly temperature-dependent spin-orbit coupling is observed at a low temperature in a 5d strongly correlated compou...

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Bibliographic Details
Published in:Journal of the Physical Society of Japan 2014-05, Vol.83 (5), p.1
Main Authors: Zhang, Lunyong, Chen, Y B, Zhang, Binbin, Zhou, Jian, Zhang, Shantao, Gu, Zhengbin, Yao, Shuhua, Chen, YanFeng
Format: Article
Language:English
Subjects:
Chemical compounds
Semiconductors
Temperature
Thin films
Topology
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Summary:Spin-orbit coupling induces nonperturbation effects in many recently developed novel fields including topological insulators and spin-orbit assistant Mott insulators. In this study, strongly temperature-dependent spin-orbit coupling is observed at a low temperature in a 5d strongly correlated compound, SrIrO... With an increase in temperature, the rate of increase in Rashba coefficient is about 30-45%/K, nearly 100 times over that observed in semiconductor heterostructures. Microscopically, the large increase in Rashba coefficient is attributed to the significant evolution of effective Lande g factor with temperature, whose mechanism is discussed qualitatively. Sensitively temperature-dependent spin-orbit coupling in SrIrO... might be applied in spintronic devices. (ProQuest: ... denotes formulae/symbols omitted.)
ISSN:0031-9015
1347-4073