Surface Termination and Thickness Dependent

Magnetic Properties of SmCo<sub>5</sub> Film

Eunsung Jekal

Research Article

Surface Termination and Thickness Dependent Magnetic Properties of SmCo₅ Film

Eunsung Jekal*

Department of Materials, ETH Zurich, Switzerland

Corresponding Author

Received Date: November 23, 2019; Published Date: December 06, 2019

Abstract

We investigated the surface termination and film thickness dependent magnetic properties of SmCo5(001) thin films. For this study, three different terminations, namely Sm-termination, Co(3g)-termination, and Sm-Co(2c)-termination with thicknesses varying from 3 to 21 mono-layers (MLs), are considered. Compared with magnetocrystalline anisotropy (MCA) of bulk SmCo5 of ∼9 meV/f.u., our results revealed that the Co(3g)- terminated thin films less than 7 MLs have extremely strong perpendicular MCA of 21 meV/ f.u. where f.u. is the area of a two-dimensional unit cell. Furthermore, it reveals high Curie temperature compared to the Sm-terminated and Sm-Co(2c) terminated case.

Article Details

Citation

Eunsung Jekal. Surface Termination and Thickness Dependent Magnetic Properties of SmCo5 Film. Mod Concept Material Sci. 2(3): 2019. MCMS.MS.ID.000538.