Transport studies of Nb-doped Pr0.7Sr0.3Mn1-xNbxO3 (0 ≤ x ≤ 0.05) manganites

被引：3
|
作者：
Choithrani, Renu [1 ]
Bhat, Masroor A. [1 ]
Gaur, N. K. [1 ]
机构：
[1] Barkatullah Univ, Dept Phys, Bhopal 462026, India
来源：
PHYSICA B-CONDENSED MATTER | 2014年 / 448卷
关键词：
Transport properties; Manganites; Specific heat; Debye temperature; Cohesive energy;
D O I：
10.1016/j.physb.2014.04.019
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We have investigated the transport studies of the Nb-doped Pr0.7Sr0.3Mn1-xNbxO3 (0 <= x <= 0.05) manganites for the first time for identifying the transport properties as a function of the composition and temperature. Pr0.7Sr0.3Mn1-xNbxO3 (0 <= x <= 0.05) samples exhibit a single phase nature with an orthorhombic structure and a Pbnm space group. These materials show colossal magnetoresistance effect (CMR) and have wide technological applications such as magnetic sensors, reading head devices, spintronics, bolometers, magnetic refrigeration, etc. The computed transport properties such as cohesive energy, Reststrahlen frequency, Debye temperature, Gruneisen parameter and temperature dependence of specific heat of Pr0.7Sr0.3Mn1-xNbxO3 (0 <= x <= 0.05) manganites are discussed in detail in the present work by applying extended rigid ion model (ERIM) and have shown significant agreement with the corresponding available results. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：320 / 322
页数：3
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