In search of antiferromagnetic interlayer coupling in diluted magnetic thin films with RKKY interaction

Abstract

We study a model thin film containing diluted bilayer structure with the RKKY long-range interaction. The magnetic subsystem is composed of two magnetically doped layers, separated by an undoped nonmagnetic spacer and placed inside a wider film modelled by a quantum well of infinite depth. We focus our study on the range of parameters for which the antiferromagnetic coupling between the magnetic layers can be expected. The critical temperatures for such system are found and their dependence on magnetic layer thickness and charge carriers concentration is discussed. The magnetization distribution within each magnetic layer is calculated as a function of layer thickness. The external field required to switch the mutual orientation of layer magnetizations from antiferromagnetic to ferromagnetic state is also discussed.

11 pages, 9 figures

References in corpus (7)

• Carrier-mediated antiferromagnetic interlayer exchange coupling in diluted magnetic semiconductor multilayers Ga${}_{1-x}$Mn${}_x$As/GaAs:Be
• Dephasing in (Ga,Mn)As nanowires and rings
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• (Ga,Mn)As based superlattices and the search for antiferromagnetic interlayer coupling
• The influence of structural short-range order on the phase diagrams of diluted FCC magnet with arbitrary spin and modified RKKY interaction
• Phase coherent transport in (Ga,Mn)As
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Cited by in corpus (4)

• Exchange bias of a ferromagnetic semiconductor by a ferromagnetic metal
• Ferrimagnetism in the Heisenberg-Ising Bilayer with Magnetically Non-equivalent Planes
• Carrier mediated interlayer exchange, ground state phase diagrams and transition temperatures of magnetic thin films
• Critical role of next-nearest-neighbor interlayer interaction in magnetic behavior of magnetic/nonmagnetic multilayers