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Spin-orbit coupling effect on the electronic structure of Sr2FeHfO6 alloy for spintronics device application

Maleque, Md. Abdul (2021) Spin-orbit coupling effect on the electronic structure of Sr2FeHfO6 alloy for spintronics device application. Journal of Magnetism and Magnetic Materials, 518. p. 167374. ISSN 0304-8853

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Abstract

Strong spin–orbit coupling (SOC) in Sr2FeHfO6 (SFHO) alloy has been predicted by means of full-potential linear augmented plane wave method in order to study the effect on electronic structure. The tetragonal (I4/mmm) SFHO with SOC has an up-spin energy of ~1.2 eV and a total magnetic moment of ~2.03 μB mainly coming from the Fe (1.63 μB), and the SOC effect was prominent in SFHO due to the magnetic moment of 3d-Fe orbitals. The XAFS spectroscopy technique was used in order to analyze the electronic structure and optical properties of SFHO. The absorption spectra with Fe as a source atom shows a peak appearing around 7118 eV. SFHO with SOC falls within the half metallic state in the up-spin direction resulting significant increase of the total magnetic moment. This half-metallicity strong SOC in SFHO demonstrate much spin polarized electrons around the Fermi level, hence, this material is very potential in future memory devices and spintronic applications.

Item Type: Article (Journal)
Additional Information: 6103/83604
Uncontrolled Keywords: Half metallic, Ferromagnetism, Double perovskites, Sr2FeHfO6 alloy, Spintronics
Subjects: Q Science > QC Physics
T Technology > T Technology (General) > T11.95 Industrial directories
T Technology > T Technology (General) > T173.2 Technological change
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK452 Electric apparatus and materials. Electric circuits. Electric networks
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User: Prof Dr. Md Abdul Maleque
Date Deposited: 12 Oct 2020 09:25
Last Modified: 12 Oct 2020 09:25
URI: http://irep.iium.edu.my/id/eprint/83604

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