Controlling magnetic anisotropy energy by electric field in 2d magnet: (111) Surface of YCo2

Author

Rana, T.H. ; Kashyap, A. ; Biswas, D. ; Sabirianov, P.

Author_Institution

Dept. of Phys., LNM Inst. of Inf. Technol., Jaipur, India

fYear

2015

fDate

11-15 May 2015

Firstpage

1

Lastpage

1

Abstract

While bulk YCo₂ is paramagnetic in nature, the thin films of YCo₂ (111) have an intriguing feature of surface magnetism, with magnetization localized on Co atoms near the surface. Using the density functional based approach we show that the surface magnetization per Co atom can be increased slightly by applying an external electric field (EF). We find that even relatively weak EF changes the magnetic anisotropy energy (MAE) quite substantially. This makes the 2D magnet, YCo2 (111) thin film a promising for sensor or spintronics applications.

Keywords

cobalt alloys; density functional theory; magnetic anisotropy; magnetic thin films; metallic thin films; paramagnetic materials; surface magnetism; yttrium alloys; 2d magnet; EF changes; YCo₂; YCo₂ (111) surface; density functional based approach; electric field control; magnetic anisotropy energy; paramagnetic materials; surface magnetism; surface magnetization; thin films; Electric fields; Magnetic field induced strain; Magnetic films; Magnetization; Perpendicular magnetic anisotropy;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference (INTERMAG), 2015 IEEE

Conference_Location

Beijing

Print_ISBN

978-1-4799-7321-7

Type

conf

DOI

10.1109/INTMAG.2015.7156780

Filename

7156780