Study of the magnetic behavior of single-crystalline Nd0.5Sr0.5MnO3

被引：19

作者：

Venkatesh, R.

Nirmala, R.

Rangarajan, G. ^{[1
]}

Malik, S. K.

Sankaranarayanan, V.

机构：

[1] Indian Inst Technol, Dept Phys, Low Temp Lab, Madras 600036, Tamil Nadu, India

[2] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

来源：

JOURNAL OF APPLIED PHYSICS | 2006年 / 99卷 / 08期

关键词：

D O I：

10.1063/1.2168435

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Zero-field-cooled and field-cooled magnetization data in single-crystalline Nd0.5Sr0.5MnO3 revealed the existence of thermodynamic irreversibility below Curie temperature (T-C), indicating the presence of frustration of spins. The imaginary part of ac susceptibility (chi(')) indicates a prominent cusp below T-C, which shifts to higher temperatures with increasing frequency. Magnetization, ac susceptibility, resistivity, and specific-heat measurements were used to find three critical exponents alpha=0.12(1), beta=0.5(0), and gamma=1.02(2). The values of the critical exponents are all between mean-field values and three-dimensional Heisenberg model values. (C) 2006 American Institute of Physics.

引用

页数：3

共 13 条

[1] Electron magnetic resonance study in a single crystal of the colossal magnetoresistance manganite Nd0.5Sr0.5MnO3 -: art. no. 094437 [J].