Preprint Article Version 1 This version is not peer-reviewed

Dependence of Atomic Thickness on Interfacial Conditions and Magnetocrystalline Anisotropy in SmCo5/Sm2Co17 Multilayer

Version 1 : Received: 17 December 2018 / Approved: 19 December 2018 / Online: 19 December 2018 (07:58:19 CET)

A peer-reviewed article of this Preprint also exists.

Jekal, S. Dependence of Atomic Thickness on Interfacial Conditions and Magnetocrystalline Anisotropy in SmCo5/Sm2Co17 Multilayer. Materials 2019, 12, 56. Jekal, S. Dependence of Atomic Thickness on Interfacial Conditions and Magnetocrystalline Anisotropy in SmCo5/Sm2Co17 Multilayer. Materials 2019, 12, 56.

Journal reference: Materials 2018, 12, 56
DOI: 10.3390/ma12010056

Abstract

We have performed first-principles calculations to study the interfacial exchange coupling and magnetocrystalline anisotropy (MCA) energy in a SmCo5/Sm2Co17 multilayer model systems. The phase of SmCo5 and Sm2Co17 stacking along (0001) direction are structurally well matched. The atomic structure, including the alignment and the separation between layers, were firstly optimized. Then the non-collinear magnetic structures were calculated to explore the exchange coupling across the interface and the variation of MCA energy. We found that the inter-phase exchange coupling strength, rotating behavior and MCA energy are strongly dependent on the atomic thickness of the SmCo5 and Sm2Co17 phase.

Subject Areas

First principles, Exchange energy, magnetocrystalline anisotropy

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