Critical behavior of La0.87K0.13MnO3 manganiteстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 2 апреля 2015 г.
Аннотация:http://www.sciencedirect.com/science/article/pii/S0925838811011613
The heat capacity of La0.87K0.13MnO3 manganite is measured in temperature intervals from 80 to 350 K. A nature of the ferromagnetic phase transition and critical properties of the heat capacity near Curie temperature are studied. The principles of change in universal critical parameters near a phase transition point are determined. The critical exponents and heat capacity amplitude are calculated with account of correction to the scaling α = −0.13, А+/А− = 1.178, and correspond to the critical behavior of 3D Heisenberg model. It is found a critical exponent of the correlation radius υ = 0.71, which is also conform to the Heisenberg universality class.