Nonlinear spin pumping induced by parametric excitation

Kazuya Ando, T. An, E. Saitoh

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Spin pumping driven by parametric spin excitation was observed in a Pt/La:Y3Fe5O12 film. We applied microwave with doubled frequency of the ferromagnetic resonance and detected a spin current emitted from the La:Y3Fe5O12 layer using the inverse spin-Hall effect (ISHE) in the Pt layer. In the ISHE signal, we found nonlinear dependence and threshold with respect to applied microwave power, demonstrating that the spin current generation is due to nonlinear coupling between microwave and spin dynamics. These results will be essential for developing active elements in spin current circuits.

Original languageEnglish
Article number092510
JournalApplied Physics Letters
Volume99
Issue number9
DOIs
Publication statusPublished - 2011 Aug 29
Externally publishedYes

Fingerprint

pumping
excitation
microwaves
Hall effect
ferromagnetic resonance
spin dynamics
thresholds

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Nonlinear spin pumping induced by parametric excitation. / Ando, Kazuya; An, T.; Saitoh, E.

In: Applied Physics Letters, Vol. 99, No. 9, 092510, 29.08.2011.

Research output: Contribution to journalArticle

@article{883e49de6e7f416d943c5363f8db41f5,
title = "Nonlinear spin pumping induced by parametric excitation",
abstract = "Spin pumping driven by parametric spin excitation was observed in a Pt/La:Y3Fe5O12 film. We applied microwave with doubled frequency of the ferromagnetic resonance and detected a spin current emitted from the La:Y3Fe5O12 layer using the inverse spin-Hall effect (ISHE) in the Pt layer. In the ISHE signal, we found nonlinear dependence and threshold with respect to applied microwave power, demonstrating that the spin current generation is due to nonlinear coupling between microwave and spin dynamics. These results will be essential for developing active elements in spin current circuits.",
author = "Kazuya Ando and T. An and E. Saitoh",
year = "2011",
month = "8",
day = "29",
doi = "10.1063/1.3633348",
language = "English",
volume = "99",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Publising LLC",
number = "9",

}

TY - JOUR

T1 - Nonlinear spin pumping induced by parametric excitation

AU - Ando, Kazuya

AU - An, T.

AU - Saitoh, E.

PY - 2011/8/29

Y1 - 2011/8/29

N2 - Spin pumping driven by parametric spin excitation was observed in a Pt/La:Y3Fe5O12 film. We applied microwave with doubled frequency of the ferromagnetic resonance and detected a spin current emitted from the La:Y3Fe5O12 layer using the inverse spin-Hall effect (ISHE) in the Pt layer. In the ISHE signal, we found nonlinear dependence and threshold with respect to applied microwave power, demonstrating that the spin current generation is due to nonlinear coupling between microwave and spin dynamics. These results will be essential for developing active elements in spin current circuits.

AB - Spin pumping driven by parametric spin excitation was observed in a Pt/La:Y3Fe5O12 film. We applied microwave with doubled frequency of the ferromagnetic resonance and detected a spin current emitted from the La:Y3Fe5O12 layer using the inverse spin-Hall effect (ISHE) in the Pt layer. In the ISHE signal, we found nonlinear dependence and threshold with respect to applied microwave power, demonstrating that the spin current generation is due to nonlinear coupling between microwave and spin dynamics. These results will be essential for developing active elements in spin current circuits.

UR - http://www.scopus.com/inward/record.url?scp=80052535844&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80052535844&partnerID=8YFLogxK

U2 - 10.1063/1.3633348

DO - 10.1063/1.3633348

M3 - Article

AN - SCOPUS:80052535844

VL - 99

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 9

M1 - 092510

ER -