Thermal expansion and magnetostriction of Laves-phase alloys: Fingerprints of ferrimagnetic phase transitions

Chao Zhou; Huixin Bao; Yoshitaka Matsushita; Tieyan Chang; Kaiyun Chen; Yin Zhang; Fanghua Tian; Wenliang Zuo; Xiaoping Song; Sen Yang; Yang Ren; Xiaobing Ren

doi:10.3390/ma12111755

Thermal expansion and magnetostriction of Laves-phase alloys: Fingerprints of ferrimagnetic phase transitions

Chao Zhou
, Huixin Bao
, Yoshitaka Matsushita
, Tieyan Chang
, Kaiyun Chen
, Yin Zhang
, Fanghua Tian
, Wenliang Zuo
, Xiaoping Song
, Sen Yang^*
, Yang Ren
, Xiaobing Ren

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

3 Citations (Scopus)

38 Downloads (CityUHK Scholars)

Abstract

The magneto-elastic coupling effect correlates to the changes of moment and lattice upon magnetic phase transition. Here, we report that, in the pseudo-binary Laves-phase Tb_1-xDy_xCo₂ system (x = 0.0, 0.7, and 1.0), thermal expansion and magnetostriction can probe the ferrimagnetic transitions from cubic to rhombohedral phase (in TbCo₂), from cubic to tetragonal phase (in DyCo₂), and from cubic to rhombohedral then to tetragonal phase (in Tb_0.3Dy_0.7Co₂). Furthermore, a Landau polynomial approach is employed to qualitatively investigate the thermal expansion upon the paramagnetic (cubic) to ferrimagnetic (rhombohedral or tetragonal) transition, and the calculated thermal expansion curves agree with the experimental curves. Our work illustrates the correlation between crystal symmetry, magnetostriction, and thermal expansion in ferrimagnetic Laves-phase alloys and provides a new perspective to investigate ferrimagnetic transitions.

Original language	English
Article number	1755
Journal	Materials
Volume	12
Issue number	11
DOIs	https://doi.org/10.3390/ma12111755
Publication status	Published - 1 Jun 2019
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

Ferrimagnetic transition
Laves-phase alloy
Magnetostriction
Thermal expansion

Publisher's Copyright Statement

This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

Access Output

10.3390/ma12111755

83685971.pdfFinal Published version, 3.84 MBLicence: CC BY

Other Access Options

Check CityUHK Library

Permanent Link

Right click to copy link

Cite this

@article{416c4dc186fa410f9a36fdd4a95cda8c,

title = "Thermal expansion and magnetostriction of Laves-phase alloys: Fingerprints of ferrimagnetic phase transitions",

abstract = "The magneto-elastic coupling effect correlates to the changes of moment and lattice upon magnetic phase transition. Here, we report that, in the pseudo-binary Laves-phase Tb1-xDyxCo2 system (x = 0.0, 0.7, and 1.0), thermal expansion and magnetostriction can probe the ferrimagnetic transitions from cubic to rhombohedral phase (in TbCo2), from cubic to tetragonal phase (in DyCo2), and from cubic to rhombohedral then to tetragonal phase (in Tb0.3Dy0.7Co2). Furthermore, a Landau polynomial approach is employed to qualitatively investigate the thermal expansion upon the paramagnetic (cubic) to ferrimagnetic (rhombohedral or tetragonal) transition, and the calculated thermal expansion curves agree with the experimental curves. Our work illustrates the correlation between crystal symmetry, magnetostriction, and thermal expansion in ferrimagnetic Laves-phase alloys and provides a new perspective to investigate ferrimagnetic transitions.",

keywords = "Ferrimagnetic transition, Laves-phase alloy, Magnetostriction, Thermal expansion",

author = "Chao Zhou and Huixin Bao and Yoshitaka Matsushita and Tieyan Chang and Kaiyun Chen and Yin Zhang and Fanghua Tian and Wenliang Zuo and Xiaoping Song and Sen Yang and Yang Ren and Xiaobing Ren",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

year = "2019",

month = jun,

day = "1",

doi = "10.3390/ma12111755",

language = "English",

volume = "12",

journal = "Materials",

issn = "1996-1944",

publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",

number = "11",

}

TY - JOUR

T1 - Thermal expansion and magnetostriction of Laves-phase alloys

T2 - Fingerprints of ferrimagnetic phase transitions

AU - Zhou, Chao

AU - Bao, Huixin

AU - Matsushita, Yoshitaka

AU - Chang, Tieyan

AU - Chen, Kaiyun

AU - Zhang, Yin

AU - Tian, Fanghua

AU - Zuo, Wenliang

AU - Song, Xiaoping

AU - Yang, Sen

AU - Ren, Yang

AU - Ren, Xiaobing

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2019/6/1

Y1 - 2019/6/1

N2 - The magneto-elastic coupling effect correlates to the changes of moment and lattice upon magnetic phase transition. Here, we report that, in the pseudo-binary Laves-phase Tb1-xDyxCo2 system (x = 0.0, 0.7, and 1.0), thermal expansion and magnetostriction can probe the ferrimagnetic transitions from cubic to rhombohedral phase (in TbCo2), from cubic to tetragonal phase (in DyCo2), and from cubic to rhombohedral then to tetragonal phase (in Tb0.3Dy0.7Co2). Furthermore, a Landau polynomial approach is employed to qualitatively investigate the thermal expansion upon the paramagnetic (cubic) to ferrimagnetic (rhombohedral or tetragonal) transition, and the calculated thermal expansion curves agree with the experimental curves. Our work illustrates the correlation between crystal symmetry, magnetostriction, and thermal expansion in ferrimagnetic Laves-phase alloys and provides a new perspective to investigate ferrimagnetic transitions.

AB - The magneto-elastic coupling effect correlates to the changes of moment and lattice upon magnetic phase transition. Here, we report that, in the pseudo-binary Laves-phase Tb1-xDyxCo2 system (x = 0.0, 0.7, and 1.0), thermal expansion and magnetostriction can probe the ferrimagnetic transitions from cubic to rhombohedral phase (in TbCo2), from cubic to tetragonal phase (in DyCo2), and from cubic to rhombohedral then to tetragonal phase (in Tb0.3Dy0.7Co2). Furthermore, a Landau polynomial approach is employed to qualitatively investigate the thermal expansion upon the paramagnetic (cubic) to ferrimagnetic (rhombohedral or tetragonal) transition, and the calculated thermal expansion curves agree with the experimental curves. Our work illustrates the correlation between crystal symmetry, magnetostriction, and thermal expansion in ferrimagnetic Laves-phase alloys and provides a new perspective to investigate ferrimagnetic transitions.

KW - Ferrimagnetic transition

KW - Laves-phase alloy

KW - Magnetostriction

KW - Thermal expansion

UR - https://www.scopus.com/pages/publications/85067272001

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85067272001&origin=recordpage

U2 - 10.3390/ma12111755

DO - 10.3390/ma12111755

M3 - RGC 21 - Publication in refereed journal

C2 - 31151148

SN - 1996-1944

VL - 12

JO - Materials

JF - Materials

IS - 11

M1 - 1755

ER -

Thermal expansion and magnetostriction of Laves-phase alloys: Fingerprints of ferrimagnetic phase transitions

Abstract

Bibliographical note

Research Keywords

Publisher's Copyright Statement

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Cite this