Magnetization, ESR and large magnetocaloric effect in zigzag chain SrGd2O4

被引：15

作者：

Jiang, X. ^{[1
,2
]}

Ouyang, Z. W. ^{[1
,2
]}

Wang, Z. X. ^{[1
,2
]}

Xia, Z. C. ^{[1
,2
]}

Rao, G. H. ^{[3
]}

机构：

[1] Huazhong Univ Sci & Technol, Wuhan Natl High Magnet Field Ctr, Wuhan 430074, Hubei, Peoples R China

[2] Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Hubei, Peoples R China

[3] Guilin Univ Elect Technol, Sch Mat Sci & Engn, Guilin 541004, Peoples R China

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2018年 / 51卷 / 04期

基金：

中国国家自然科学基金;

关键词：

magnetocaloric effect; geometric frustration; electron spin resonance; zigzag chain;

D O I：

10.1088/1361-6463/aaa06c

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We performed the magnetization and electron spin resonance (ESR) measurements in the zigzag chain antiferromagnet SrGd2O4. First, the temperature-dependent ESR spectra suggest the presence of spin-spin correlations well above the ordering temperature due to geometric frustration. Second, the ESR data reveal the field-induced magnetic transition from an ordered state to a paramagnetic state, in accordance with the magnetization data. Third, the magnetization process exhibits a large magnetocaloric effect, which is associated with the alignment of paramagnetic spins along the direction of magnetic field. The maximum magnetic entropy change (-Delta S-M) near 3K and refrigerant capacity (RCP) are 27 J.Kg(-1).K-1 and 325 J.Kg(-1), respectively, for a field change of 0-7 T. With negligible thermal and field hysteresis, SrGd2O4 can be considered as a cryogenic refrigerant material.

引用

页数：6

共 39 条

[1] Dimensionality and irreversibility of field-induced transitions in SrDy2O4 [J].

Bidaud, C. ;

Simard, O. ;

Quirion, G. ;

Prevost, B. ;

Daneau, S. ;

Bianchi, A. D. ;

Dabkowska, H. A. ;

Quilliam, J. A. .

PHYSICAL REVIEW B, 2016, 93 (06)

[2] Magnetic field-induced ordering in SrDy2O4 [J].

Cheffings, T. H. ;

Lees, M. R. ;

Balakrishnan, G. ;

Petrenko, O. A. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2013, 25 (25)

[3] Evidence for SrHo2O4 and SrDy2O4 as model J1-J2 zigzag chain materials [J].

Fennell, A. ;

Pomjakushin, V. Y. ;

Uldry, A. ;

Delley, B. ;

Prevost, B. ;

Desilets-Benoit, A. ;

Bianchi, A. D. ;

Bewley, R. I. ;

Hansen, B. R. ;

Klimczuk, T. ;

Cava, R. J. ;

Kenzelmann, M. .

PHYSICAL REVIEW B, 2014, 89 (22)

[4] The Magnetocaloric Effect and Magnetic Refrigeration Near Room Temperature: Materials and Models [J].

Franco, V. ;

Blazquez, J. S. ;

Ingale, B. ;

Conde, A. .

ANNUAL REVIEW OF MATERIALS RESEARCH, VOL 42, 2012, 42 :305-342

[5] Field dependence of the magnetic correlations of the frustrated magnet SrDy2O4 [J].

Gauthier, N. ;

Fennell, A. ;

Prevost, B. ;

Desilets-Benoit, A. ;

Dabkowska, H. A. ;

Zaharko, O. ;

Frontzek, M. ;

Sibille, R. ;

Bianchi, A. D. ;

Kenzelmann, M. .

PHYSICAL REVIEW B, 2017, 95 (18)

[6] Absence of long-range order in the frustrated magnet SrDy2O4 due to trapped defects from a dimensionality crossover [J].

Gauthier, N. ;

Fennell, A. ;

Prevost, B. ;

Uldry, A. -C. ;

Delley, B. ;

Sibille, R. ;

Desilets-Benoit, A. ;

Dabkowska, H. A. ;

Nilsen, G. J. ;

Regnault, L. -P. ;

White, J. S. ;

Niedermayer, C. ;

Pomjakushin, V. ;

Bianchi, A. D. ;

Kenzelmann, M. .

PHYSICAL REVIEW B, 2017, 95 (13)

[7]

Gauthier N, 2013, J PHYS CONDENS MATT, V25

[8] Short range ordering in the modified honeycomb lattice compound SrHo2O4 [J].

Ghosh, S. ;

Zhou, H. D. ;

Balicas, L. ;

Hill, S. ;

Gardner, J. S. ;

Qiu, Y. ;

Wiebe, C. R. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2011, 23 (16)

[9] Enhancement of the magnetocaloric effect driven by changes in the crystal structure of Al- doped GGG, Gd3Ga5 -xAlxO12(0 ≤ x ≤ 5) [J].

Hamilton, A. C. Sackville ;

Lampronti, G. I. ;

Rowley, S. E. ;

Dutton, S. E. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2014, 26 (11)

[10] Monte Carlo study of a geometrically frustrated rare-earth magnetic compound: SrGd2O4 [J].

Hasan, Emrul ;

Southern, B. W. .

PHYSICAL REVIEW B, 2017, 96 (09)

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