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Spin Seebeck effect in antiferromagnets and compensated ferrimagnets

机译:反铁磁体和补偿铁磁体中的自旋塞贝克效应

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摘要

We theoretically investigate the spin Seebeck effect (SSE) in antiferromagnets and ferrimagnets, and show that the SSE vanishes in antiferromagnets but survives in ferrimagnets even at the magnetization compensation point despite the absence of its saturation magnetization. The nonvanishing SSE in ferrimagnets stems from two nondegenerate magnons. We demonstrate that the magnitude of the SSE in ferrimagnets is unchanged across the magnetization compensation point.
机译:我们从理论上研究了反铁磁体和亚铁磁体中的自旋塞贝克效应(SSE),并表明,即使没有饱和磁化,SSE在反铁磁体中消失,但即使在磁化补偿点也能在亚铁磁体中生存。 Ferrimagnets中不消失的SSE源自两个未退化的马农。我们证明,在整个磁化补偿点上,亚铁的SSE量级不变。

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  • 来源
    《Physical review》 |2013年第1期|014423.1-014423.7|共7页
  • 作者单位

    Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan,Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan;

    Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan,CREST, Japan Science and Technology Agency, Sanbancho, Tokyo 102-0075, Japan;

    Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan,Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan,CREST, Japan Science and Technology Agency, Sanbancho, Tokyo 102-0075, Japan,WPI Research Center, Advanced Institute for Material Research, Tohoku University, Sendai 980-8577, Japan;

    Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan,CREST, Japan Science and Technology Agency, Sanbancho, Tokyo 102-0075, Japan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    magnetoelectronics; spintronics: devices exploiting spin polarized transport or integrated magnetic fields; spin transport through interfaces; spin waves;

    机译:磁电子学自旋电子学:利用自旋极化传输或集成磁场的设备;通过接口旋转传输;自旋波;

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