Antiferromagnonic Spin Transport from Y3Fe5O12 into NiO

被引：299

作者：

Wang, Hailong ^{[1
]}

Du, Chunhui ^{[1
]}

Hammel, P. Chris ^{[1
]}

Yang, Fengyuan ^{[1
]}

机构：

[1] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 113卷 / 09期

关键词：

FERROMAGNETIC-RESONANCE;

D O I：

10.1103/PhysRevLett.113.097202

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We observe highly efficient dynamic spin injection from Y3Fe5O12 (YIG) into NiO, an antiferromagnetic (AF) insulator, via strong coupling, and robust spin propagation in NiO up to 100-nm thickness mediated by its AF spin correlations. Strikingly, the insertion of a thin NiO layer between YIG and Pt significantly enhances the spin currents driven into Pt, suggesting exceptionally high spin transfer efficiency at both YIG/NiO and NiO/Pt interfaces. This offers a powerful platform for studying AF spin pumping and AF dynamics as well as for exploration of spin manipulation in tailored structures comprising metallic and insulating ferromagnets, antiferromagnets, and nonmagnetic materials.

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页数：5

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