Tunable magnetic properties and magnetocaloric effect of TmGa by Ho substitution

S. X. Yang; X. Q. Zheng; W. Y. Yang; J. W. Xu; J. Liu; L. Xi; H. Zhang; L. C. Wang; Z. Y. Xu; J. Y. Zhang; Y. F. Wu; X. B. Ma; D. F. Chen; J. B. Yang; S. G. Wang; B. G. Shen

doi:10.1103/PhysRevB.102.174441

Tunable magnetic properties and magnetocaloric effect of TmGa by Ho substitution

S. X. Yang, X. Q. Zheng, W. Y. Yang, J. W. Xu, J. Liu, L. Xi, H. Zhang, L. C. Wang, Z. Y. Xu, J. Y. Zhang, Y. F. Wu, X. B. Ma, D. F. Chen, J. B. Yang, S. G. Wang, B. G. Shen

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

22 Citations (Scopus)

Abstract

The influence of Ho substitution for Tm atoms on the magnetic properties and magnetocaloric effect (MCE) of TmGa compound was systematically investigated according to magnetic measurements and neutron powder diffraction (NPD) experiments. The magnetic transitions of Tm1-xHoxGa compounds show different types by Ho substitution due to the variation of spin and orbital angular momentum quantum number and the complete magnetic diagram of Tm1-xHoxGa compounds was obtained. The spin reorientation (SR) transition of Tm0.1Ho0.9Ga compound was directly confirmed by variable-temperature NPD experiments. Results show that the magnetic moment orders along the c axis at the temperatures between TSR and TC and it cants away from the c axis towards the ab plane upon cooling below TSR. Furthermore, Ho substitution plays a dominant role in MCE of Tm1-xHoxGa compounds. When x=0.15, the peak value of magnetic entropy change reaches the maximum value of 18.0 J/kg K under field change of 0-2 T. The refrigerant temperature span (δTFWHM) and refrigeration capacity of Tm0.85Ho0.15Ga compound show enhancement of 23.0 and 21.6%, correspondingly, compared with TmGa compound. The giant MCE of Tm0.85Ho0.15Ga compound results from the optimization of spin and total angular momentum quantum number by Ho substitution.

Original language	English
Article number	174441
Journal	Physical Review B
Volume	102
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevB.102.174441
Publication status	Published - 30 Nov 2020
Externally published	Yes

Access to Document

10.1103/PhysRevB.102.174441

Cite this

@article{76850da7842542319cde582140373a67,

title = "Tunable magnetic properties and magnetocaloric effect of TmGa by Ho substitution",

abstract = "The influence of Ho substitution for Tm atoms on the magnetic properties and magnetocaloric effect (MCE) of TmGa compound was systematically investigated according to magnetic measurements and neutron powder diffraction (NPD) experiments. The magnetic transitions of Tm1-xHoxGa compounds show different types by Ho substitution due to the variation of spin and orbital angular momentum quantum number and the complete magnetic diagram of Tm1-xHoxGa compounds was obtained. The spin reorientation (SR) transition of Tm0.1Ho0.9Ga compound was directly confirmed by variable-temperature NPD experiments. Results show that the magnetic moment orders along the c axis at the temperatures between TSR and TC and it cants away from the c axis towards the ab plane upon cooling below TSR. Furthermore, Ho substitution plays a dominant role in MCE of Tm1-xHoxGa compounds. When x=0.15, the peak value of magnetic entropy change reaches the maximum value of 18.0 J/kg K under field change of 0-2 T. The refrigerant temperature span (δTFWHM) and refrigeration capacity of Tm0.85Ho0.15Ga compound show enhancement of 23.0 and 21.6%, correspondingly, compared with TmGa compound. The giant MCE of Tm0.85Ho0.15Ga compound results from the optimization of spin and total angular momentum quantum number by Ho substitution.",

author = "Yang, {S. X.} and Zheng, {X. Q.} and Yang, {W. Y.} and Xu, {J. W.} and J. Liu and L. Xi and H. Zhang and Wang, {L. C.} and Xu, {Z. Y.} and Zhang, {J. Y.} and Wu, {Y. F.} and Ma, {X. B.} and Chen, {D. F.} and Yang, {J. B.} and Wang, {S. G.} and Shen, {B. G.}",

note = "Publisher Copyright: {\textcopyright} 2020 American Physical Society.",

year = "2020",

month = nov,

day = "30",

doi = "10.1103/PhysRevB.102.174441",

language = "English",

volume = "102",

journal = "Physical Review B",

issn = "2469-9950",

publisher = "American Physical Society",

number = "17",

}

TY - JOUR

T1 - Tunable magnetic properties and magnetocaloric effect of TmGa by Ho substitution

AU - Yang, S. X.

AU - Zheng, X. Q.

AU - Yang, W. Y.

AU - Xu, J. W.

AU - Liu, J.

AU - Xi, L.

AU - Zhang, H.

AU - Wang, L. C.

AU - Xu, Z. Y.

AU - Zhang, J. Y.

AU - Wu, Y. F.

AU - Ma, X. B.

AU - Chen, D. F.

AU - Yang, J. B.

AU - Wang, S. G.

AU - Shen, B. G.

PY - 2020/11/30

Y1 - 2020/11/30

N2 - The influence of Ho substitution for Tm atoms on the magnetic properties and magnetocaloric effect (MCE) of TmGa compound was systematically investigated according to magnetic measurements and neutron powder diffraction (NPD) experiments. The magnetic transitions of Tm1-xHoxGa compounds show different types by Ho substitution due to the variation of spin and orbital angular momentum quantum number and the complete magnetic diagram of Tm1-xHoxGa compounds was obtained. The spin reorientation (SR) transition of Tm0.1Ho0.9Ga compound was directly confirmed by variable-temperature NPD experiments. Results show that the magnetic moment orders along the c axis at the temperatures between TSR and TC and it cants away from the c axis towards the ab plane upon cooling below TSR. Furthermore, Ho substitution plays a dominant role in MCE of Tm1-xHoxGa compounds. When x=0.15, the peak value of magnetic entropy change reaches the maximum value of 18.0 J/kg K under field change of 0-2 T. The refrigerant temperature span (δTFWHM) and refrigeration capacity of Tm0.85Ho0.15Ga compound show enhancement of 23.0 and 21.6%, correspondingly, compared with TmGa compound. The giant MCE of Tm0.85Ho0.15Ga compound results from the optimization of spin and total angular momentum quantum number by Ho substitution.

AB - The influence of Ho substitution for Tm atoms on the magnetic properties and magnetocaloric effect (MCE) of TmGa compound was systematically investigated according to magnetic measurements and neutron powder diffraction (NPD) experiments. The magnetic transitions of Tm1-xHoxGa compounds show different types by Ho substitution due to the variation of spin and orbital angular momentum quantum number and the complete magnetic diagram of Tm1-xHoxGa compounds was obtained. The spin reorientation (SR) transition of Tm0.1Ho0.9Ga compound was directly confirmed by variable-temperature NPD experiments. Results show that the magnetic moment orders along the c axis at the temperatures between TSR and TC and it cants away from the c axis towards the ab plane upon cooling below TSR. Furthermore, Ho substitution plays a dominant role in MCE of Tm1-xHoxGa compounds. When x=0.15, the peak value of magnetic entropy change reaches the maximum value of 18.0 J/kg K under field change of 0-2 T. The refrigerant temperature span (δTFWHM) and refrigeration capacity of Tm0.85Ho0.15Ga compound show enhancement of 23.0 and 21.6%, correspondingly, compared with TmGa compound. The giant MCE of Tm0.85Ho0.15Ga compound results from the optimization of spin and total angular momentum quantum number by Ho substitution.

UR - http://www.scopus.com/inward/record.url?scp=85097204679&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.102.174441

DO - 10.1103/PhysRevB.102.174441

M3 - Article

AN - SCOPUS:85097204679

SN - 2469-9950

VL - 102

JO - Physical Review B

JF - Physical Review B

IS - 17

M1 - 174441

ER -

Tunable magnetic properties and magnetocaloric effect of TmGa by Ho substitution

Abstract

Access to Document

Other files and links

Fingerprint

Cite this