Low-field magnetocaloric effect in Pr0.5Sr0.5MnO3

被引：51

作者：

Chen, P ^{[1
]}

Du, YW

Ni, G

机构：

[1] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China

[2] SW Normal Univ, Dept Phys, Chongqing 400715, Peoples R China

来源：

EUROPHYSICS LETTERS | 2000年 / 52卷 / 05期

关键词：

D O I：

10.1209/epl/i2000-00478-8

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The magnetocaloric effect in polycrystalline of Pr1-xSrxMnO3 (x = 0.3 0.4, 0.5) was investigated. A large magnetic entropy change (7.1 J/kg K) is discovered in Pr0.5Sr0.5MnO3 under a low magnetic field of 1T at charge-ordered state transition temperature (161K). The physical mexhanism is related to a drastic magnetization change at a temperature where the field-induced magnetic, electron and structural phase transitions occur (from antiferromagnetic charge-ordered state to ferromagnetic charge-disordered state).

引用

页码：589 / 593

页数：5

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