Oscillatory domain wall velocity of current-induced domain wall motion

W. J. Kim; S. M. Seo; T. D. Lee; K. J. Lee

doi:10.1016/j.jmmm.2006.10.943

Oscillatory domain wall velocity of current-induced domain wall motion

W. J. Kim, S. M. Seo, T. D. Lee, K. J. Lee

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

We studied the effect of Oersted field (H_Oe) on current-induced domain wall motion (CIDWM) in magnetic nanowires. We found that H_Oe generates spin waves. Because of interaction between domain wall (DW) and spin wave, time-dependent wall velocity is oscillatory at the early stage of wall motion. The period of the oscillatory DW motion is in antiphase with the period of out-of-plane (OOP) magnetization oscillation inside the DW. The oscillatory wall velocity is suppressed as the thickness of nanowire decreases because of strong demagnetization field.

Original language	English
Pages (from-to)	2032-2034
Number of pages	3
Journal	Journal of Magnetism and Magnetic Materials
Volume	310
Issue number	2 SUPPL. PART 3
DOIs	https://doi.org/10.1016/j.jmmm.2006.10.943
Publication status	Published - 2007 Mar

Keywords

Domain wall motion
Oersted field
Spin wave
Spin-transfer torque

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1016/j.jmmm.2006.10.943

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title = "Oscillatory domain wall velocity of current-induced domain wall motion",

abstract = "We studied the effect of Oersted field (HOe) on current-induced domain wall motion (CIDWM) in magnetic nanowires. We found that HOe generates spin waves. Because of interaction between domain wall (DW) and spin wave, time-dependent wall velocity is oscillatory at the early stage of wall motion. The period of the oscillatory DW motion is in antiphase with the period of out-of-plane (OOP) magnetization oscillation inside the DW. The oscillatory wall velocity is suppressed as the thickness of nanowire decreases because of strong demagnetization field.",

keywords = "Domain wall motion, Oersted field, Spin wave, Spin-transfer torque",

author = "Kim, {W. J.} and Seo, {S. M.} and Lee, {T. D.} and Lee, {K. J.}",

year = "2007",

month = mar,

doi = "10.1016/j.jmmm.2006.10.943",

language = "English",

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T1 - Oscillatory domain wall velocity of current-induced domain wall motion

AU - Kim, W. J.

AU - Seo, S. M.

AU - Lee, T. D.

AU - Lee, K. J.

PY - 2007/3

Y1 - 2007/3

N2 - We studied the effect of Oersted field (HOe) on current-induced domain wall motion (CIDWM) in magnetic nanowires. We found that HOe generates spin waves. Because of interaction between domain wall (DW) and spin wave, time-dependent wall velocity is oscillatory at the early stage of wall motion. The period of the oscillatory DW motion is in antiphase with the period of out-of-plane (OOP) magnetization oscillation inside the DW. The oscillatory wall velocity is suppressed as the thickness of nanowire decreases because of strong demagnetization field.

AB - We studied the effect of Oersted field (HOe) on current-induced domain wall motion (CIDWM) in magnetic nanowires. We found that HOe generates spin waves. Because of interaction between domain wall (DW) and spin wave, time-dependent wall velocity is oscillatory at the early stage of wall motion. The period of the oscillatory DW motion is in antiphase with the period of out-of-plane (OOP) magnetization oscillation inside the DW. The oscillatory wall velocity is suppressed as the thickness of nanowire decreases because of strong demagnetization field.

KW - Domain wall motion

KW - Oersted field

KW - Spin wave

KW - Spin-transfer torque

UR - http://www.scopus.com/inward/record.url?scp=33847613817&partnerID=8YFLogxK

U2 - 10.1016/j.jmmm.2006.10.943

DO - 10.1016/j.jmmm.2006.10.943

M3 - Article

AN - SCOPUS:33847613817

SN - 0304-8853

VL - 310

SP - 2032

EP - 2034

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 2 SUPPL. PART 3

ER -

Oscillatory domain wall velocity of current-induced domain wall motion

Abstract

Keywords

ASJC Scopus subject areas

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