Role of magnetostrictive effect in magnetization dynamics of SmFe thin films

Xiaodong He; Guanjie Wu; Bingcheng Zhao; Linlin Zhang; Xiaowei Zhou; Zhu Liu; Yang Ren; Jiangwei Cao; Li Xi; Yalu Zuo; Jinlin Yao; Qingyuan Jin; Zongzhi Zhang

doi:10.7567/1882-0786/ab509b

Role of magnetostrictive effect in magnetization dynamics of SmFe thin films

Xiaodong He
, Guanjie Wu
, Bingcheng Zhao
, Linlin Zhang
, Xiaowei Zhou
, Zhu Liu
, Yang Ren
, Jiangwei Cao
, Li Xi
, Yalu Zuo
, Jinlin Yao
, Qingyuan Jin
, Zongzhi Zhang

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

4 Scopus citations

Abstract

Laser induced magnetization dynamic behaviors of Sm_xFe_1-x thin films with tunable x (0.25 ≤ x ≤ 0.5) are investigated by the time-resolved magneto-optical Kerr effect. It is found that the demagnetization process is accomplished by a two-stage process, the demagnetization time of stage I is within 1.0 ps (t ₁) for all the samples with different x, while it increases from 0 to 16 ps at stage II (t ₂) due to the reduced exchange coupling. By introducing an additional magneto-elastic energy contribution, the dispersion relation of precession frequency is deduced, by which the field-dependent frequency curves are well fitted.

Original language	English
Article number	123002
Journal	Applied Physics Express
Volume	12
Issue number	12
DOIs	https://doi.org/10.7567/1882-0786/ab509b
State	Published - 1 Dec 2019
Externally published	Yes

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title = "Role of magnetostrictive effect in magnetization dynamics of SmFe thin films",

abstract = "Laser induced magnetization dynamic behaviors of SmxFe1-x thin films with tunable x (0.25 ≤ x ≤ 0.5) are investigated by the time-resolved magneto-optical Kerr effect. It is found that the demagnetization process is accomplished by a two-stage process, the demagnetization time of stage I is within 1.0 ps (t 1) for all the samples with different x, while it increases from 0 to 16 ps at stage II (t 2) due to the reduced exchange coupling. By introducing an additional magneto-elastic energy contribution, the dispersion relation of precession frequency is deduced, by which the field-dependent frequency curves are well fitted.",

author = "Xiaodong He and Guanjie Wu and Bingcheng Zhao and Linlin Zhang and Xiaowei Zhou and Zhu Liu and Yang Ren and Jiangwei Cao and Li Xi and Yalu Zuo and Jinlin Yao and Qingyuan Jin and Zongzhi Zhang",

note = "Publisher Copyright: {\textcopyright} 2019 The Japan Society of Applied Physics.",

year = "2019",

month = dec,

day = "1",

doi = "10.7567/1882-0786/ab509b",

language = "英语",

volume = "12",

journal = "Applied Physics Express",

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TY - JOUR

T1 - Role of magnetostrictive effect in magnetization dynamics of SmFe thin films

AU - He, Xiaodong

AU - Wu, Guanjie

AU - Zhao, Bingcheng

AU - Zhang, Linlin

AU - Zhou, Xiaowei

AU - Liu, Zhu

AU - Ren, Yang

AU - Cao, Jiangwei

AU - Xi, Li

AU - Zuo, Yalu

AU - Yao, Jinlin

AU - Jin, Qingyuan

AU - Zhang, Zongzhi

PY - 2019/12/1

Y1 - 2019/12/1

N2 - Laser induced magnetization dynamic behaviors of SmxFe1-x thin films with tunable x (0.25 ≤ x ≤ 0.5) are investigated by the time-resolved magneto-optical Kerr effect. It is found that the demagnetization process is accomplished by a two-stage process, the demagnetization time of stage I is within 1.0 ps (t 1) for all the samples with different x, while it increases from 0 to 16 ps at stage II (t 2) due to the reduced exchange coupling. By introducing an additional magneto-elastic energy contribution, the dispersion relation of precession frequency is deduced, by which the field-dependent frequency curves are well fitted.

AB - Laser induced magnetization dynamic behaviors of SmxFe1-x thin films with tunable x (0.25 ≤ x ≤ 0.5) are investigated by the time-resolved magneto-optical Kerr effect. It is found that the demagnetization process is accomplished by a two-stage process, the demagnetization time of stage I is within 1.0 ps (t 1) for all the samples with different x, while it increases from 0 to 16 ps at stage II (t 2) due to the reduced exchange coupling. By introducing an additional magneto-elastic energy contribution, the dispersion relation of precession frequency is deduced, by which the field-dependent frequency curves are well fitted.

UR - https://www.scopus.com/pages/publications/85076739100

U2 - 10.7567/1882-0786/ab509b

DO - 10.7567/1882-0786/ab509b

M3 - 文章

AN - SCOPUS:85076739100

SN - 1882-0778

VL - 12

JO - Applied Physics Express

JF - Applied Physics Express

IS - 12

M1 - 123002

ER -

Role of magnetostrictive effect in magnetization dynamics of SmFe thin films

Abstract

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