Longitudinal Spin Seebeck Effect Free from the Proximity Nernst Effect

2013324 citationsJournal Articlegreen Open Access

Authors

Takashi Kikkawa · Tohoku University

Ken‐ichi Uchida · Japan Science and Technology Agency

Yuki Shiomi · Advanced Institute of Materials Science

Zhiyong Qiu · Advanced Institute of Materials Science

Dazhi Hou · Fudan University

D. Tian · Fudan University

Hiroyasu Nakayama ·

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(3)Fe(5)O(12) (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.

Topics & Keywords

Magnetic properties of thin films Quantum and electron transport phenomena Magneto-Optical Properties and Applications

Publication Details

Published in: Physical Review Letters

Volume 110, Issue 6, pp. 067207-067207

DOI: 10.1103/physrevlett.110.067207

Field-Weighted Citation Impact: 28.88

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Longitudinal Spin Seebeck Effect Free from the Proximity Nernst Effect

Authors

Abstract

Topics & Keywords

Publication Details