Absence of anomalous Nernst effect in spin Seebeck effect of Pt/YIG

Journal Article · Fri Jan 01 00:00:00 EST 2016 · AIP Advances

DOI:https://doi.org/10.1063/1.4941340· OSTI ID:1236412

Miao, B. F.; Huang, S. Y.; Qu, D.; Chien, C. L.

The Pt/YIG structure has been widely used to study spin Seebeck effect (SSE), inverse spin Hall effect, and other pure spin current phenomena. However, the magnetic proximity effect in Pt when in contact with YIG, and the potential anomalous Nernst effect (ANE) may compromise the spin current phenomena in Pt/YIG. By inserting a Cu layer of various thicknesses between Pt and YIG, we have separated the signals from the SSE and that of the ANE. Here, it is demonstrated that the thermal voltage in Pt/YIG mainly comes from spin current due to the longitudinal SSE with negligible contribution from the ANE.

• Research Organization: Johns Hopkins Univ., Baltimore, MD (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• Grant/Contract Number: E-SC0009390; SC0009390
• OSTI ID: 1236412
• Alternate ID(s): OSTI ID: 1242967; OSTI ID: 1421024
• Journal Information: AIP Advances, Journal Name: AIP Advances Vol. 6 Journal Issue: 1; ISSN 2158-3226
• Publisher: American Institute of Physics
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
magnetoresistance
gold
thermoelectric effects
polycrystals
electric measurements