A study of the phase transition and magnetocaloric effect in multiferroic La2MnNiO6 single crystals

被引：43

作者：

Balli, M. ^{[1
]}

Fournier, P. ^{[1
,2
]}

Jandl, S. ^{[1
]}

Gospodinov, M. M. ^{[3
]}

机构：

[1] Univ Sherbrooke, Dept Phys, Regrp Quebecois Mat Pointe, Sherbrooke, PQ J1K 2R1, Canada

[2] Canadian Inst Adv Res, Toronto, ON M5G 1Z8, Canada

[3] Bulgarian Acad Sci, Inst Solid State Phys, BU-1184 Sofia, Bulgaria

来源：

JOURNAL OF APPLIED PHYSICS | 2014年 / 115卷 / 17期

基金：

加拿大自然科学与工程研究理事会;

关键词：

MAGNETIC ENTROPY CHANGE; ROOM-TEMPERATURE; MAGNETORESISTANCE; GD1-XTBX;

D O I：

10.1063/1.4874943

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Magnetic and magnetocaloric properties of single crystal double perovskite La2MnNiO6 have been investigated in details. Its ordered phase with a high Curie temperature (T-C = 280 K) exhibits a significant refrigerant capacity around room temperature. A model based on the mean field theory approximation has been used in order to quantify the magnetic and magnetocaloric properties in the ordered La2MnNiO6. The magnetization and entropy changes were satisfactorily simulated as a function of temperature and magnetic field. On the other hand, the presence of cationic disorder in La2MnNiO6 phases allows to shift the Curie point to low temperature without a significant change in the magnetocaloric performance. (C) 2014 AIP Publishing LLC.

引用

页数：8

共 51 条

[1]

ASTROV DN, 1960, SOV PHYS JETP-USSR, V11, P708

[2] Optimization of La( Fe, Co)13-xSix based compounds for magnetic refrigeration [J].

Balli, M. ;

Fruchart, D. ;

Gignoux, D. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2007, 19 (23)

[3] Gd1-xTbx alloys for Ericsson-like magnetic refrigeration cycles [J].

Balli, M. ;

Fruchart, D. ;

Gignoux, D. ;

Hlil, E. K. ;

Miraglia, S. ;

Wolfers, P. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2007, 442 (1-2) :129-131

[4] Modelling of the magnetocaloric effect in Gd1-xTbx and MnAs compounds [J].

Balli, M. ;

Fruchart, D. ;

Gignoux, D. ;

Miraglia, S. ;

Hlil, E. K. ;

Wolfers, P. .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2007, 316 (02) :E558-E561

[5] A pre-industrial magnetic cooling system for room temperature application [J].

Balli, M. ;

Sari, O. ;

Mahmed, C. ;

Besson, Ch. ;

Bonhote, Ph. ;

Duc, D. ;

Forchelet, J. .

APPLIED ENERGY, 2012, 98 :556-561

[6] Giant magnetocaloric effect in Mn1-x(Ti0.5V0.5)xAs:: Experiments and calculations [J].

Balli, M. ;

Fruchart, D. ;

Gignoux, D. ;

Dupuis, C. ;

Kedous-Lebouc, A. ;

Zach, R. .

JOURNAL OF APPLIED PHYSICS, 2008, 103 (10)

[7] The "colossal" magnetocaloric effect in Mn1-xFexAs: What are we really measuring? [J].

Balli, Mohamed ;

Fruchart, Daniel ;

Gignoux, Damien ;

Zach, Ryszard .

APPLIED PHYSICS LETTERS, 2009, 95 (07)

[8] The LaFe11.2Co0.7Si1.1Cx carbides for magnetic refrigeration close to room temperature [J].

Balli, Mohamed ;

Fruchart, Daniel ;

Gignoux, Damien .

APPLIED PHYSICS LETTERS, 2008, 92 (23)

[9] MAGNETIC DISORDER AS A FIRST-ORDER PHASE TRANSFORMATION [J].

BEAN, CP ;

RODBELL, DS .

PHYSICAL REVIEW, 1962, 126 (01) :104-+

[10] FERROMAGNETIC INTERACTIONS IN NON-METALLIC PEROVSKITES [J].

BLASSE, G .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1965, 26 (12) :1969-&

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