Magnetic Properties of Heisenberg Thin Films in an
External Field |
| |
| Authors: | CHEN Hong and ZHANG Jing |
| |
| Institution: | School of Physics, Southwest China Normal University,
Chongqing 400715, China |
| |
| Abstract: | The magnetic properties
of Heisenberg ferromagnetic films in an external magnetic field
are investigated by means of the variational cumulant expansion (VCE).
The magnetization can be in principle calculated analytically as the
function of the temperature and the number of atomic layers in
the film to an arbitrary order of accuracy in the VCE. We
calculate the spontaneous magnetization and coercivity
to the third order for spin-1/2 Heisenberg films with simple cubic
lattices by using a graphic technique. |
| |
| Keywords: | thin film Heisenberg ferromagnet variational-cumulant expansion |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《理论物理通讯》浏览原始摘要信息 |
| 点击此处可从《理论物理通讯》下载免费的PDF全文 |
