Critical behaviour of the specific heat of La0.9Ag0.1MrO3 manganite

被引：9
作者：
Gamzatov, Adler G.
Aliev, A. M.
Khizriev, K. Sh.
Abdulvagidov, Sh. B.
Batdalov, A. B.
Gorbenko, O. Y.
Melnikov, O. V.
机构：
[1] RAS, Daghestan Sci Ctr, Inst Phys, Makhachkala 367003, Daghestan, Russia
[2] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119899, Russia
来源：
PHYSICA B-CONDENSED MATTER | 2007年 / 390卷 / 1-2期
基金：
俄罗斯基础研究基金会;
关键词：
manganite; specific heat; phase transition; critical phenomena; critical exponents;
D O I：
10.1016/j.physb.2006.08.007
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
For the first time the specific heat of polycrystalline La0.9Ag0.1MnO3 manganite near the Curie temperature was precisely measured by AC calorimetry and its critical behaviour was studied. The critical behaviour of the specific heat was approximated by the relationship taking into account corrections to the scaling. The regularities of variations in the universal critical parameters near the critical point are determined, and their values are calculated. Detailed analysis and comparison of the received results with the theoretical predictions and other experimental results was carried out. (c) 2006 Elsevier B.V. All rights reserved.
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页码：155 / 158
页数：4
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