On the origin of temperature dependence of interlayer exchange coupling in metallic trilayers

Abstract

We study the influence of collective magnetic excitations on the interlayer exchange coupling (IEC) in metallic multilayers. The results are compared to other models that explain the temperature dependence of the IEC by mechanisms within the spacer or at the interfaces of the multilayers. As a main result we find that the reduction of the IEC with temperature shows practically the same functional dendence in all models. On the other hand the influence of the spacer thickness, the magnetic material, and an external field are quite different. Based on these considerations we propose experiments, that are able to determine the dominating mechanism that reduces the IEC at finite temperatures.

arXiv comment8 pages, 7 figures, accepted for PRB

References in corpus (2)

• Ab-initio calculations of exchange interactions, spin-wave stiffness constants, and Curie temperatures of Fe, Co, and Ni
• Interlayer exchange coupling: Preasymptotic corrections

Cited by in corpus (3)

• Spin wave excitations: The main source of the temperature dependence of Interlayer exchange coupling in nanostructures
• Temperature-induced reversal of magnetic interlayer exchange coupling
• Carrier mediated interlayer exchange, ground state phase diagrams and transition temperatures of magnetic thin films