First-principles investigation of magnetocrystalline anisotropy at the L 2 1 full Heusler | MgO interfaces and tunnel junctions

Abstract : Magnetocrystalline anisotropy at Heusler alloy|MgO interfaces has been studied using first-principles calculations. It has been found that Co-terminated Co2FeAl|MgO interfaces show perpendicular magnetic anisotropy up to 1.31 mJ/m2, while those with FeAl termination exhibit in-plane magnetic anisotropy. Atomic layer-resolved analysis indicates that the origin of perpendicular magnetic anisotropy in Co2FeAl|MgO interfaces can be attributed to the out-of-plane orbital contributions of interfacial Co atoms. At the same time, Co2MnGe and Co2MnSi interfaced with MgO tend to favor in-plane magnetic anisotropy for all terminations.
Complete list of metadatas

Cited literature [37 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01576633
Contributor : Mairbek Chshiev <>
Submitted on : Wednesday, August 23, 2017 - 4:05:16 PM
Last modification on : Thursday, April 4, 2019 - 9:44:02 AM

File

PhysRevB.94.104418 (6).pdf
Publisher files allowed on an open archive

Identifiers

Collections

Citation

Rajasekarakumar Vadapoo, Ali Hallal, Hongxin Yang, Mairbek Chshiev. First-principles investigation of magnetocrystalline anisotropy at the L 2 1 full Heusler | MgO interfaces and tunnel junctions. Physical Review B : Condensed matter and materials physics, American Physical Society, 2016, 94 (10), pp.104418. ⟨https://journals.aps.org/prb/abstract/10.1103/PhysRevB.94.104418⟩. ⟨10.1103/PhysRevB.94.104418⟩. ⟨hal-01576633⟩

Share

Metrics

Record views

227

Files downloads

114