Low-temperature properties of ferromagnetic–antiferromagnetic double layer superlattices

✍ Scribed by Wei Jiang; An-Bang Guo; Bao-Dong Bai; Guo-Zhu Wei

• Publisher: Elsevier Science
• Year: 2007
• Tongue: English
• Weight: 266 KB
• Volume: 384
• Category: Article
• ISSN: 0378-4371
• DOI: 10.1016/j.physa.2007.01.020

✦ Synopsis

Low-temperature magnetic properties of a Heisenberg model consisting of ferro-and antiferromagnetic layer superlattices are studied by using spin-wave theory and retarded Green's function method. The four-sublattice magnetizations and internal energy and specific heat at low temperature are calculated. The results of various physical quantities are shown for different sets of intra-and interplane coupling interactions. There is a crossover between sublattice magnetizations in each layer is affected by quantum fluctuations, thermal fluctuations and frustration of spins.