Spin-phonon coupling and two-magnons scattering behaviors in hexagonal NiAs-type antiferromagnetic MnTe epitaxial films

Jiyue Zhang; Qin Lian; Zhiqiang Pan; Wei Bai; Jing Yang; Yuanyuan Zhang; Xiaodong Tang; Junhao Chu

doi:10.1002/jrs.5928

Spin-phonon coupling and two-magnons scattering behaviors in hexagonal NiAs-type antiferromagnetic MnTe epitaxial films

Jiyue Zhang
, Qin Lian
, Zhiqiang Pan
, Wei Bai^*
, Jing Yang
, Yuanyuan Zhang
, Xiaodong Tang^*
, Junhao Chu

^*此作品的通讯作者

物理与电子科学学院

East China Normal University
Shanxi University

科研成果: 期刊稿件 › 文章 › 同行评审

18 引用（Scopus）

摘要

Temperature-dependent Raman scattering spectra of NiAs-type MnTe epitaxial films were measured to explore the temperature evolution of phonon modes and especially the spin-phonon coupling across Néel temperature (T_N). A significant deviation from an anharmonic mode below T_N strongly supports the existence of spin-phonon interaction, and its coupling strength is calculated to be approximately −0.16 cm⁻¹ from the E_2g phonon. Two-magnons (2M) scattering is found, which is proposed to closely relate to the nearest neighbor (NN) exchange interaction. These data elucidate the nature of the spin-phonon coupling in antiferromagnetic (AFM) MnTe and can avail to develop MnTe-based AFM spintronic devices.

源语言	英语
页（从-至）	1383-1389
页数	7
期刊	Journal of Raman Spectroscopy
卷	51
期	8
DOI	https://doi.org/10.1002/jrs.5928
出版状态	已出版 - 1 8月 2020

访问文件

10.1002/jrs.5928

其它文件与链接

链接到 Scopus 的出版物

引用此

@article{2dff47fc2c5c4caeb453ccaf767f531a,

title = "Spin-phonon coupling and two-magnons scattering behaviors in hexagonal NiAs-type antiferromagnetic MnTe epitaxial films",

abstract = "Temperature-dependent Raman scattering spectra of NiAs-type MnTe epitaxial films were measured to explore the temperature evolution of phonon modes and especially the spin-phonon coupling across N{\'e}el temperature (TN). A significant deviation from an anharmonic mode below TN strongly supports the existence of spin-phonon interaction, and its coupling strength is calculated to be approximately −0.16 cm−1 from the E2g phonon. Two-magnons (2M) scattering is found, which is proposed to closely relate to the nearest neighbor (NN) exchange interaction. These data elucidate the nature of the spin-phonon coupling in antiferromagnetic (AFM) MnTe and can avail to develop MnTe-based AFM spintronic devices.",

keywords = "MnTe film, Raman spectroscopy, spin-phonon coupling, temperature dependence, two-magnons scattering",

author = "Jiyue Zhang and Qin Lian and Zhiqiang Pan and Wei Bai and Jing Yang and Yuanyuan Zhang and Xiaodong Tang and Junhao Chu",

note = "Publisher Copyright: {\textcopyright} 2020 John Wiley \& Sons, Ltd.",

year = "2020",

month = aug,

day = "1",

doi = "10.1002/jrs.5928",

language = "英语",

volume = "51",

pages = "1383--1389",

journal = "Journal of Raman Spectroscopy",

issn = "0377-0486",

publisher = "John Wiley and Sons Ltd",

number = "8",

}

TY - JOUR

T1 - Spin-phonon coupling and two-magnons scattering behaviors in hexagonal NiAs-type antiferromagnetic MnTe epitaxial films

AU - Zhang, Jiyue

AU - Lian, Qin

AU - Pan, Zhiqiang

AU - Bai, Wei

AU - Yang, Jing

AU - Zhang, Yuanyuan

AU - Tang, Xiaodong

AU - Chu, Junhao

PY - 2020/8/1

Y1 - 2020/8/1

N2 - Temperature-dependent Raman scattering spectra of NiAs-type MnTe epitaxial films were measured to explore the temperature evolution of phonon modes and especially the spin-phonon coupling across Néel temperature (TN). A significant deviation from an anharmonic mode below TN strongly supports the existence of spin-phonon interaction, and its coupling strength is calculated to be approximately −0.16 cm−1 from the E2g phonon. Two-magnons (2M) scattering is found, which is proposed to closely relate to the nearest neighbor (NN) exchange interaction. These data elucidate the nature of the spin-phonon coupling in antiferromagnetic (AFM) MnTe and can avail to develop MnTe-based AFM spintronic devices.

AB - Temperature-dependent Raman scattering spectra of NiAs-type MnTe epitaxial films were measured to explore the temperature evolution of phonon modes and especially the spin-phonon coupling across Néel temperature (TN). A significant deviation from an anharmonic mode below TN strongly supports the existence of spin-phonon interaction, and its coupling strength is calculated to be approximately −0.16 cm−1 from the E2g phonon. Two-magnons (2M) scattering is found, which is proposed to closely relate to the nearest neighbor (NN) exchange interaction. These data elucidate the nature of the spin-phonon coupling in antiferromagnetic (AFM) MnTe and can avail to develop MnTe-based AFM spintronic devices.

KW - MnTe film

KW - Raman spectroscopy

KW - spin-phonon coupling

KW - temperature dependence

KW - two-magnons scattering

UR - https://www.scopus.com/pages/publications/85087436399

U2 - 10.1002/jrs.5928

DO - 10.1002/jrs.5928

M3 - 文章

AN - SCOPUS:85087436399

SN - 0377-0486

VL - 51

SP - 1383

EP - 1389

JO - Journal of Raman Spectroscopy

JF - Journal of Raman Spectroscopy

IS - 8

ER -

Spin-phonon coupling and two-magnons scattering behaviors in hexagonal NiAs-type antiferromagnetic MnTe epitaxial films

摘要

访问文件

其它文件与链接

指纹

引用此