Spin mixing conductance enhancement by increasing magnetic density

Hiromi Yuasa, Kouki Tamae, Norimasa Onizuka

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

We obtained the spin Seebeck effect enhancement in Y3Fe5O12 (YIG)/Pt system by inserting a very thin Ni80Fe20 at the interface of YIG/Pt. One of important parameters determining the spin Seebeck coefficient is the spin mixing conductance at the interface between magnetic oxide and nonmagnetic metal, and it was theoretically reported that the spin mixing conductance depends on the magnetic density at the interface. However, a ferrimagnetic oxide such as YIG has a small magnetic moment density. In this report, we fabricated YIG (1 mm)/Ni80Fe20 (t nm)/Pt (5 nm) and the spin Seebeck coefficient of t=0.6 nm becomes 2.1 times larger than that of t=0. It is considered owing to improvement of the magnetic moment density and the spin mixing conductance.

Original languageEnglish
Article number055928
JournalAIP Advances
Volume7
Issue number5
DOIs
Publication statusPublished - May 1 2017

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Spin mixing conductance enhancement by increasing magnetic density'. Together they form a unique fingerprint.

Cite this