Magnetic Properties of Electron Doped Polycrystalline Ca0.85Pr0.15MnO3 Manganite

被引：1

作者：

Pal, Sudipta ^{[1
]}

Khan, Momin Hossain ^{[1
]}

Bose, Esa ^{[2
]}

机构：

[1] Univ Kalyani, Dept Phys, Nadia 741235, W Bengal, India

[2] BP Poddar Inst Management & Technol, Dept Engn Phys, Kolkata 700052, W Bengal, India

来源：

ADVANCED SCIENCE LETTERS | 2016年 / 22卷 / 01期

关键词：

Perovskite Manganite; Magnetic Transition; Magnetization; TEMPERATURE; MAGNETORESISTANCE; CAMNO3; PR;

D O I：

10.1166/asl.2016.6796

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We have investigated the temperature and field-dependent magnetization properties of the electron doped manganite Ca0.85Pr0.15MnO3 (CPMO). The compound was prepared by a standard solid state reaction method. The XRD pattern of the sample was well categorized by an orthorhombic structure with space group Pnma. A second order paramagnetic (PM) to antiferromagnetic (AFM) phase transition has been observed at a well-defined Neel temperature, T-N = 122 K. Magnetic susceptibility revealed that the paramagnetic state involves modified Curie-Weiss paramagnetism due to the rare earth Pr3+ ions. Field cooled and zero field cooled magnetization study indicates a signature of magnetic frustration. Ferromagnetic (FM) double-exchange (DE) interactions associated with doped e(g) electrons are favored over competing AFM interactions. The second order transition has also been confirmed by Landau coefficient estimated by the fit of the equation of state. The positive value of Currie-Weiss (CW) temperature (theta(CW)) has been ascribed to the presence of the short-range ferromagnetic order in this compound.

引用

页码：132 / 135

页数：4

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