Magnetic Properties of Ferromagnetic Double Layers with Ferrimagnetic Interlayer Coupling at Zero Temperature

• 来源期刊: 理论物理通讯(英文版)
• 年，卷（期）: 2009,（2）
• 页码范围: 349-352
• 页数: 4页
• 语种: 英文

摘要

Spin-wave theory is used to study magnetic properties of ferromagnetic double layers with a ferrimagnetic interlayer coupling at zero temperature.The spin-wave spectra and four sublattices magnetizations and internal energy are calculated by employing retarded Green function technique.The sublattice magnetizations at ground state are smaller than their classical values, owing to the zero-point quantum fluctuations of the spins.