Title :
Mechanism of the enhanced electric-field effect on the interfacial magnetic anisotropyof Fe/MgO-based stack structure
Author :
Guan, X. ; Cheng, X. ; Huang, T. ; Miao, X.
Author_Institution :
Sch. of Opt. & Electron. Inf., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
This study investigates the interfacial magnetic anisotropy of M/Fe/MgO(001) stack structures (M = Au, Pt). Ab initio calculation studies show that the interface strain due to lattice mismatch could enhance the electric field effect on the magnetic anisotropy energy. The perpendicular magnetic anisotropy energy is calculated based on the free energy difference associated with spin orientation.
Keywords :
ab initio calculations; free energy; gold; interface magnetism; iron; magnesium compounds; perpendicular magnetic anisotropy; platinum; spin dynamics; Au-Fe-MgO; Pt-Fe-MgO; ab initio calculation; electric-field effect; free energy; interface strain; interfacial magnetic anisotropy; lattice mismatch; perpendicular magnetic anisotropy energy; spin orientation; stack structures; Electric fields; Electric potential; Electrostatics; Gold; Iron; Perpendicular magnetic anisotropy;
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
DOI :
10.1109/INTMAG.2015.7156736
