Temperature dependence of pure spin current and spin-mixing conductance in the ferromagnetic-normal metal structure

被引：17
作者：
Atsarkin, V. A. [1 ]
Borisenko, I., V [1 ]
Demidov, V. V. [1 ]
Shaikhulov, T. A. [1 ]
机构：
[1] RAS, VA Kotelnikov Inst Radio Engn & Elect, Moscow 125009, Russia
来源：
JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2018年 / 51卷 / 24期
关键词：
pure spin current; ferromagnetic-normal metal bilayer; ferromagnetic resonance; spin-mixing conductance; manganite; inverse spin Hall effect; temperature dependence;
D O I：
10.1088/1361-6463/aac2af
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Temperature evolution of pure spin current has been studied in an epitaxial thin-film bilayer La2/3Sr1/3MnO3/Pt deposited on a NdGaO3 substrate. The spin current was generated by microwave pumping under conditions of ferromagnetic resonance in the ferromagnetic La2/3Sr1/3MnO3 layer and detected in the Pt layer due to the inverse spin Hall effect. A considerable increase in the spin current magnitude has been observed upon cooling from the Curie point (350K) down to 100K. Using the obtained data, the temperature evolution of the mixed spin conductance g(mix)(T) has been extracted. It was found that the g(mix)(T) dependence correlates with magnetization in a thin area adjacent to the ferromagnetic-normal metal interface.
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页数：6
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