Spin mixing conductance enhancement by increasing magnetic density
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,...
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Online Access: | http://dx.doi.org/10.1063/1.4977496 |
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doaj-2235e534a2f34ffeb463067e4d446d792020-11-25T02:33:13ZengAIP Publishing LLCAIP Advances2158-32262017-05-0175055928055928-510.1063/1.4977496273791ADVSpin mixing conductance enhancement by increasing magnetic densityHiromi Yuasa0Kouki Tamae1Norimasa Onizuka2Graduate School of Information Science and Electrical Engineering, Kyushu University, Fukuoka 819-0395, JapanGraduate School of Information Science and Electrical Engineering, Kyushu University, Fukuoka 819-0395, JapanGraduate School of Information Science and Electrical Engineering, Kyushu University, Fukuoka 819-0395, JapanWe 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.http://dx.doi.org/10.1063/1.4977496 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Hiromi Yuasa Kouki Tamae Norimasa Onizuka |
spellingShingle |
Hiromi Yuasa Kouki Tamae Norimasa Onizuka Spin mixing conductance enhancement by increasing magnetic density AIP Advances |
author_facet |
Hiromi Yuasa Kouki Tamae Norimasa Onizuka |
author_sort |
Hiromi Yuasa |
title |
Spin mixing conductance enhancement by increasing magnetic density |
title_short |
Spin mixing conductance enhancement by increasing magnetic density |
title_full |
Spin mixing conductance enhancement by increasing magnetic density |
title_fullStr |
Spin mixing conductance enhancement by increasing magnetic density |
title_full_unstemmed |
Spin mixing conductance enhancement by increasing magnetic density |
title_sort |
spin mixing conductance enhancement by increasing magnetic density |
publisher |
AIP Publishing LLC |
series |
AIP Advances |
issn |
2158-3226 |
publishDate |
2017-05-01 |
description |
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. |
url |
http://dx.doi.org/10.1063/1.4977496 |
work_keys_str_mv |
AT hiromiyuasa spinmixingconductanceenhancementbyincreasingmagneticdensity AT koukitamae spinmixingconductanceenhancementbyincreasingmagneticdensity AT norimasaonizuka spinmixingconductanceenhancementbyincreasingmagneticdensity |
_version_ |
1724815557167939584 |