THERMAL EXPANSION AND SPECIFIC HEAT OF Bi1-xSrxMnO3 IN ORTHORHOMBIC PEROVSKITE PHASE

被引：0
|
作者：
Srivastava, Archana [1 ]
Gaur, N. K. [2 ]
机构：
[1] Sri Sathya Sai Coll Women, Dept Phys, Bhopal 462024, India
[2] Barkatullah Univ, Dept Phys, Bhopal 462026, India
来源：
PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON INNOVATIVE MATERIALS FOR PROCESSES IN ENERGY SYSTEMS 2010 (IMPRES2010): FOR FUEL CELLS, HEAT PUMPS AND SORPTION SYSTEMS | 2010年
关键词：
Specific Heat; Thermodynamic Properties; Solid Oxide Fuel Cell; Colossal Magnetoresistance Material; CHARGE; ORDER; TEMPERATURE; IONS;
D O I：
10.3850/978-981-08-7614-2_IMPRES009
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
With the objective of exploring the unknown thermodynamic phase diagram of Bi1-xSrxMnO3 family, we present here an investigation of the temperature-dependent (10K < T < 900K) thermodynamic behavior of Bi1-xSrxMnO3 (x=0.1-0.8). We report here probably for the first time the thermal expansion and specific heat along with other thermal properties of strontium doped perovskite manganite BiMnO3. The specific heat values revealed by using RIM are in close agreement with the available experimental data for some concentrations (x) of Bi1-xSrxMnO3. The bulk modulus of Bi1-xSrxMnO3 (x=0.1-0.8) in spin ordered and paramagnetic phase is also investigated with the help of atoms in molecule (AIM) theory and the results are closer to values for the similar compound LaMnO3. In addition, the results on the bulk modulus (B), cohesive energy (phi) in orthorhombic perovskite phase, molecular force constant (f), Reststrahlen frequency (nu(o)) and Gruneisen parameter (gamma) are also presented.
引用
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页码：393 / 399
页数：7
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