AC Magnetic Susceptibility of La1-xCaxMnO3 (x=0.25, 0.33, 0.4, 0.5): Monte Carlo Approach

被引：0

作者：

Barco-Rios, H. ^{[1
]}

Restrepo-Parra, E. ^{[1
]}

机构：

[1] Univ Nacl Colombia, AA 127, Manizales, Colombia

来源：

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2016年 / 29卷 / 05期

关键词：

Manganite; Stoichiometry; Fourier transform; AC susceptibility; TRANSITIONS; MANGANITES;

D O I：

10.1007/s10948-016-3370-0

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

AC magnetic susceptibility of La1-x Ca (x) MnO3 (x = 0.25, 0.33, 04, 0.5) thin films was obtained using Monte Carlo simulations combined with Fourier transform. The material stoichiometry was varied depending on the combination of Mn (4+) and Mn (3+) ions. Hamiltonian used includes the Heisenberg interaction, magnetocrystalline anisotropy, and Zeeman effect. For determining AC susceptibility, a time-dependent external magnetic field h(t) was applied. The study was conducted for various angular frequencies and temperatures. The simulations were obtained using a graphical interface that allowed the online monitoring of the results. According to the results, the AC susceptibility decreases not only with the temperature but also with the frequency.

引用

页码：1287 / 1293

页数：7

共 26 条

[1] Phase Separation of Electrons Strongly Coupled with Phonons in Cuprates and Manganites [J].