Longitudinal spin seebeck effect free from the proximity nernst effect

T. Kikkawa, K. Uchida, Y. Shiomi, Z. Qiu, D. Hou, D. Tian, H. Nakayama, X. F. Jin, E. Saitoh

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211 Citations (Scopus)

Abstract

This Letter provides evidence for intrinsic longitudinal spin Seebeck effects (LSSEs) that are free from the anomalous Nernst effect (ANE) caused by an extrinsic proximity effect. We report the observation of LSSEs in Au/Y 3Fe5O12 (YIG) and Pt/Cu/YIG systems, showing that the LSSE appears even when the mechanism of the proximity ANE is clearly removed. In the conventional Pt/YIG structure, furthermore, we separate the LSSE from the ANE by comparing the voltages in different magnetization and temperature-gradient configurations; the ANE contamination was found to be negligibly small even in the Pt/YIG structure.

Original languageEnglish
Article number067207
JournalPhysical review letters
Volume110
Issue number6
DOIs
Publication statusPublished - 2013 Feb 7

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Cite this

    Kikkawa, T., Uchida, K., Shiomi, Y., Qiu, Z., Hou, D., Tian, D., Nakayama, H., Jin, X. F., & Saitoh, E. (2013). Longitudinal spin seebeck effect free from the proximity nernst effect. Physical review letters, 110(6), [067207]. https://doi.org/10.1103/PhysRevLett.110.067207