A first-principles study of exchange integrals in magnetite

A first-principles study of exchange integrals in magnetite
复制标题

磁铁矿交换积分的第一性原理研究

DOI:
10.1088/0953-8984/7/22/006
复制
发表时间:
1995
期刊:
Journal of Physics: Condensed Matter
影响因子:
--
通讯作者:
B. Siberchicot
B. Siberchicot
中科院分区:
--
文献类型:
--
作者:
M. Uhl;B. Siberchicot

文献摘要

被引文献

相似文献

本文提出了一种基于无公度磁结构总能量计算的量子化学从头计算方法,用于计算多子格磁结构的交换常数和自旋波激发。在这里,磁铁矿(Fe_3O_4)的交换能,色散曲线和居里温度,并与实验结果进行了比较。
A method is presented to calculate ab initio exchange constants and spin-wave excitations of multi-sublattice magnetic structures on the basis of total-energy calculations of incommensurate magnetic structures. Here the exchange energies, dispersion curves and Curie temperature for magnetite (Fe3O4) are obtained and compared with experimental results.