Characteristic field angular dependence of magnetization switching assisted by spin wave excitation

Takeshi Seki, Kyoko Hotta, Hiroshi Imamura, Yukio Nozaki, Koki Takanashi

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We found the characteristic dependence of magnetization switching assisted by spin wave excitation on the magnetic field angle (θ) for exchange-coupled L10-FePt/Permalloy bilayers, where θ was the angle from the easy magnetization axis of L10-FePt. Without the spin wave being excited, an incoherent switching occurred through the domain wall motion. The frequency for the switching field (Hsw) reduction under the spin wave excitation did not depend on θ. This characteristic dependence is attributable to less variation in the resonance frequencies of the spin waves against θ. We also increased the efficiency of the H sw reduction further with θ.

Original languageEnglish
Article number122403
JournalApplied Physics Letters
Volume103
Issue number12
DOIs
Publication statusPublished - 2013 Sep 16

Fingerprint

wave excitation
magnons
magnetization
Permalloys (trademark)
domain wall
magnetic fields

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Characteristic field angular dependence of magnetization switching assisted by spin wave excitation. / Seki, Takeshi; Hotta, Kyoko; Imamura, Hiroshi; Nozaki, Yukio; Takanashi, Koki.

In: Applied Physics Letters, Vol. 103, No. 12, 122403, 16.09.2013.

Research output: Contribution to journalArticle

Seki, Takeshi ; Hotta, Kyoko ; Imamura, Hiroshi ; Nozaki, Yukio ; Takanashi, Koki. / Characteristic field angular dependence of magnetization switching assisted by spin wave excitation. In: Applied Physics Letters. 2013 ; Vol. 103, No. 12.
@article{e84614ccf20344bab6b1531680cc8b60,
title = "Characteristic field angular dependence of magnetization switching assisted by spin wave excitation",
abstract = "We found the characteristic dependence of magnetization switching assisted by spin wave excitation on the magnetic field angle (θ) for exchange-coupled L10-FePt/Permalloy bilayers, where θ was the angle from the easy magnetization axis of L10-FePt. Without the spin wave being excited, an incoherent switching occurred through the domain wall motion. The frequency for the switching field (Hsw) reduction under the spin wave excitation did not depend on θ. This characteristic dependence is attributable to less variation in the resonance frequencies of the spin waves against θ. We also increased the efficiency of the H sw reduction further with θ.",
author = "Takeshi Seki and Kyoko Hotta and Hiroshi Imamura and Yukio Nozaki and Koki Takanashi",
year = "2013",
month = "9",
day = "16",
doi = "10.1063/1.4821208",
language = "English",
volume = "103",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Publising LLC",
number = "12",

}

TY - JOUR

T1 - Characteristic field angular dependence of magnetization switching assisted by spin wave excitation

AU - Seki, Takeshi

AU - Hotta, Kyoko

AU - Imamura, Hiroshi

AU - Nozaki, Yukio

AU - Takanashi, Koki

PY - 2013/9/16

Y1 - 2013/9/16

N2 - We found the characteristic dependence of magnetization switching assisted by spin wave excitation on the magnetic field angle (θ) for exchange-coupled L10-FePt/Permalloy bilayers, where θ was the angle from the easy magnetization axis of L10-FePt. Without the spin wave being excited, an incoherent switching occurred through the domain wall motion. The frequency for the switching field (Hsw) reduction under the spin wave excitation did not depend on θ. This characteristic dependence is attributable to less variation in the resonance frequencies of the spin waves against θ. We also increased the efficiency of the H sw reduction further with θ.

AB - We found the characteristic dependence of magnetization switching assisted by spin wave excitation on the magnetic field angle (θ) for exchange-coupled L10-FePt/Permalloy bilayers, where θ was the angle from the easy magnetization axis of L10-FePt. Without the spin wave being excited, an incoherent switching occurred through the domain wall motion. The frequency for the switching field (Hsw) reduction under the spin wave excitation did not depend on θ. This characteristic dependence is attributable to less variation in the resonance frequencies of the spin waves against θ. We also increased the efficiency of the H sw reduction further with θ.

UR - http://www.scopus.com/inward/record.url?scp=84884826393&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84884826393&partnerID=8YFLogxK

U2 - 10.1063/1.4821208

DO - 10.1063/1.4821208

M3 - Article

AN - SCOPUS:84884826393

VL - 103

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 12

M1 - 122403

ER -