Probing temperature-driven spin reorientation transition of GdFeCo film by Kerr loops and ferromagnetic resonance

Wei He; Hao Liang Liu; Hong Ye Wu; Jian Wang Cai; Zhao Hua Cheng

doi:10.1063/1.4906871

Probing temperature-driven spin reorientation transition of GdFeCo film by Kerr loops and ferromagnetic resonance

Wei He
, Hao Liang Liu
, Hong Ye Wu
, Jian Wang Cai
, Zhao Hua Cheng

CAS - Institute of Physics
BaoTou Teachers College

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

21 Scopus citations

Abstract

The magnetic anisotropy is of both scientific and technological interest for magneto-optical material GdFeCo film. We characterize the magnetic anisotropy of a 20 nm GdFeCo film from 265 K to 320 K via Kerr loops and ferromagnetic resonance. With increasing temperature, both of the first-order uniaxial magnetic anisotropy and shape anisotropy increase. However, the competition between them causes a temperature-driven spin reorientation transition (SRT) and the effective perpendicular magnetic anisotropy decrease from 2.22 × 10⁴ergs/cm³ (288 K) to -1.56 × 10⁴ergs/cm³ (317 K). The positive second-order uniaxial magnetic anisotropy determines an easy-cone state as the mediated state during SRT.

Original language	English
Article number	042401
Journal	Applied Physics Letters
Volume	106
Issue number	4
DOIs	https://doi.org/10.1063/1.4906871
State	Published - 26 Jan 2015
Externally published	Yes

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@article{936ba313ff9e4ac487246c0a95209727,

title = "Probing temperature-driven spin reorientation transition of GdFeCo film by Kerr loops and ferromagnetic resonance",

abstract = "The magnetic anisotropy is of both scientific and technological interest for magneto-optical material GdFeCo film. We characterize the magnetic anisotropy of a 20 nm GdFeCo film from 265 K to 320 K via Kerr loops and ferromagnetic resonance. With increasing temperature, both of the first-order uniaxial magnetic anisotropy and shape anisotropy increase. However, the competition between them causes a temperature-driven spin reorientation transition (SRT) and the effective perpendicular magnetic anisotropy decrease from 2.22 × 104ergs/cm3 (288 K) to -1.56 × 104ergs/cm3 (317 K). The positive second-order uniaxial magnetic anisotropy determines an easy-cone state as the mediated state during SRT.",

author = "Wei He and Liu, \{Hao Liang\} and Wu, \{Hong Ye\} and Cai, \{Jian Wang\} and Cheng, \{Zhao Hua\}",

note = "Publisher Copyright: {\textcopyright} 2015 AIP Publishing LLC.",

year = "2015",

month = jan,

day = "26",

doi = "10.1063/1.4906871",

language = "英语",

volume = "106",

journal = "Applied Physics Letters",

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TY - JOUR

T1 - Probing temperature-driven spin reorientation transition of GdFeCo film by Kerr loops and ferromagnetic resonance

AU - He, Wei

AU - Liu, Hao Liang

AU - Wu, Hong Ye

AU - Cai, Jian Wang

AU - Cheng, Zhao Hua

PY - 2015/1/26

Y1 - 2015/1/26

N2 - The magnetic anisotropy is of both scientific and technological interest for magneto-optical material GdFeCo film. We characterize the magnetic anisotropy of a 20 nm GdFeCo film from 265 K to 320 K via Kerr loops and ferromagnetic resonance. With increasing temperature, both of the first-order uniaxial magnetic anisotropy and shape anisotropy increase. However, the competition between them causes a temperature-driven spin reorientation transition (SRT) and the effective perpendicular magnetic anisotropy decrease from 2.22 × 104ergs/cm3 (288 K) to -1.56 × 104ergs/cm3 (317 K). The positive second-order uniaxial magnetic anisotropy determines an easy-cone state as the mediated state during SRT.

AB - The magnetic anisotropy is of both scientific and technological interest for magneto-optical material GdFeCo film. We characterize the magnetic anisotropy of a 20 nm GdFeCo film from 265 K to 320 K via Kerr loops and ferromagnetic resonance. With increasing temperature, both of the first-order uniaxial magnetic anisotropy and shape anisotropy increase. However, the competition between them causes a temperature-driven spin reorientation transition (SRT) and the effective perpendicular magnetic anisotropy decrease from 2.22 × 104ergs/cm3 (288 K) to -1.56 × 104ergs/cm3 (317 K). The positive second-order uniaxial magnetic anisotropy determines an easy-cone state as the mediated state during SRT.

UR - https://www.scopus.com/pages/publications/84923878466

U2 - 10.1063/1.4906871

DO - 10.1063/1.4906871

M3 - 文章

AN - SCOPUS:84923878466

SN - 0003-6951

VL - 106

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 4

M1 - 042401

ER -

Probing temperature-driven spin reorientation transition of GdFeCo film by Kerr loops and ferromagnetic resonance

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