Spin-orbit coupling effect on the electronic structure of Sr2FeHfO6 alloy for spintronics application
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Tarih
2021
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
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 similar to 1.2 eV and a total magnetic moment of similar to 2.03 mu B mainly coming from the Fe (1.63 mu B), 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.
Açıklama
Anahtar Kelimeler
Half metallic, Ferromagnetism, Double perovskites, Sr2FeHfO6 alloy, Spintronics
Kaynak
Journal of Magnetism and Magnetic Materials
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
518
