Effect of hydrostatic pressure on magnetic phase transition and magnetocaloric properties of (Sm0.8Nd0.2)0.52Sr0.48MnO3

被引：18

作者：

Arumugam, S. ^{[1
]}

Sarkar, P. ^{[2
,3
]}

Mandal, P. ^{[3
]}

Murugeswari, A. ^{[1
]}

Matsubayashi, K. ^{[4
]}

Ganguli, C. ^{[4
]}

Uwatoko, Y. ^{[4
]}

机构：

[1] Bharathidasan Univ, Sch Phys, Ctr High Pressure Res, Tiruchirappalli 620024, Tamil Nadu, India

[2] Serampore Coll, Dept Phys, Serampore 712201, India

[3] Saha Inst Nucl Phys, Kolkata 700064, W Bengal, India

[4] Univ Tokyo, ISSP, Chiba 2778581, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 2010年 / 107卷 / 11期

关键词：

ferromagnetic materials; hydrostatics; magnetic transitions; magnetisation; magnetocaloric effects; metamagnetism; neodymium compounds; samarium compounds; strontium compounds; BANDWIDTH;

D O I：

10.1063/1.3431343

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have investigated the effect of hydrostatic pressure (P) on ferromagnetic (FM) phase transition and magnetocaloric properties of (Sm0.8Nd0.2)(0.52)Sr0.48MnO3 single crystal. At ambient pressure, the system undergoes a first order FM transition associated with large magnetic entropy change (Delta S-M). The temperature distribution of Delta S-M exhibits an asymmetric behavior with respect to T-C. The application of pressure increases magnetization, shifts the FM transition to higher temperature, and weakens the metamagnetism. As a result, vertical bar Delta S-M vertical bar decreases and its thermal distribution becomes more symmetric as compared to P=0. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3431343]

引用

页数：4

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