3d-4f spin interaction and field-induced metamagnetism in R CrO4 (R = Ho, Gd, Lu) compounds

A. Midya; N. Khan; D. Bhoi; P. Mandal

doi:10.1063/1.4861680

3d-4f spin interaction and field-induced metamagnetism in R CrO₄ (R = Ho, Gd, Lu) compounds

A. Midya
, N. Khan
, D. Bhoi
, P. Mandal

High Pressure

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

36 Scopus citations

Abstract

We observe that the zircon-type RCrO₄ (R = Ho, Gd, Lu) compounds exhibit complicated magnetic properties and large magnetic entropy change due to the strong competition between ferromagnetic and antiferromagnetic interactions. For a field change of 7 T, the maximum values of entropy change and refrigerant capacity reach 28 J kg^-1 K^-1 and 740 J kg^-1, respectively, for GdCrO₄ whereas the corresponding values for HoCrO₄ are 29 J kg^-1 K^-1 and 550 J kg^-1. For GdCrO₄ compound, the magnetic entropy change is quite large even at low temperatures well below the ferromagnetic transition.

Original language	English
Article number	17E114
Journal	Journal of Applied Physics
Volume	115
Issue number	17
DOIs	https://doi.org/10.1063/1.4861680
State	Published - May 7 2014

Access to Document

10.1063/1.4861680

Cite this

@article{b01feb6c9b904b039ba7e997a2ccf307,

title = "3d-4f spin interaction and field-induced metamagnetism in R CrO4 (R = Ho, Gd, Lu) compounds",

abstract = "We observe that the zircon-type RCrO4 (R = Ho, Gd, Lu) compounds exhibit complicated magnetic properties and large magnetic entropy change due to the strong competition between ferromagnetic and antiferromagnetic interactions. For a field change of 7 T, the maximum values of entropy change and refrigerant capacity reach 28 J kg-1 K-1 and 740 J kg-1, respectively, for GdCrO4 whereas the corresponding values for HoCrO4 are 29 J kg-1 K-1 and 550 J kg-1. For GdCrO4 compound, the magnetic entropy change is quite large even at low temperatures well below the ferromagnetic transition.",

author = "A. Midya and N. Khan and D. Bhoi and P. Mandal",

year = "2014",

month = may,

day = "7",

doi = "10.1063/1.4861680",

language = "English",

volume = "115",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics",

number = "17",

}

TY - JOUR

T1 - 3d-4f spin interaction and field-induced metamagnetism in R CrO4 (R = Ho, Gd, Lu) compounds

AU - Midya, A.

AU - Khan, N.

AU - Bhoi, D.

AU - Mandal, P.

PY - 2014/5/7

Y1 - 2014/5/7

N2 - We observe that the zircon-type RCrO4 (R = Ho, Gd, Lu) compounds exhibit complicated magnetic properties and large magnetic entropy change due to the strong competition between ferromagnetic and antiferromagnetic interactions. For a field change of 7 T, the maximum values of entropy change and refrigerant capacity reach 28 J kg-1 K-1 and 740 J kg-1, respectively, for GdCrO4 whereas the corresponding values for HoCrO4 are 29 J kg-1 K-1 and 550 J kg-1. For GdCrO4 compound, the magnetic entropy change is quite large even at low temperatures well below the ferromagnetic transition.

AB - We observe that the zircon-type RCrO4 (R = Ho, Gd, Lu) compounds exhibit complicated magnetic properties and large magnetic entropy change due to the strong competition between ferromagnetic and antiferromagnetic interactions. For a field change of 7 T, the maximum values of entropy change and refrigerant capacity reach 28 J kg-1 K-1 and 740 J kg-1, respectively, for GdCrO4 whereas the corresponding values for HoCrO4 are 29 J kg-1 K-1 and 550 J kg-1. For GdCrO4 compound, the magnetic entropy change is quite large even at low temperatures well below the ferromagnetic transition.

UR - https://www.scopus.com/pages/publications/84903901187

U2 - 10.1063/1.4861680

DO - 10.1063/1.4861680

M3 - Article

AN - SCOPUS:84903901187

SN - 0021-8979

VL - 115

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 17

M1 - 17E114

ER -

3d-4f spin interaction and field-induced metamagnetism in R CrO₄ (R = Ho, Gd, Lu) compounds

Abstract

Access to Document

Other files and links

Fingerprint

Cite this