Investigation of temperature dependent magnetic properties in irradiated Co/Pt multilayer devices using Extraordinary Hall effect measurements

Author

Wang, K. ; Qiu, Y. ; Huang, Y. ; Heard, P. ; Bending, S.

Author_Institution

Coll. of Inf. Sci. & Eng., Huaqiao Univ., Xiamen, China

fYear

2015

fDate

11-15 May 2015

Firstpage

1

Lastpage

1

Abstract

This article reports the experimental results using Ga ion FIB to irradiate Hall devices based on ultrathin Co/Pt multilayers. The multilayers are deposited on Si/SiO₂ substrate using DC magnetron sputtering. Temperature dependent magnetic properties of the irradiated devices are investigated by extraordinary Hall effect measurements. The perpendicular magnetic anisotropy in the multilayer is confirmed by polar magneto-optical Kerr effect measurements. Pronounced differences in magnetic reversal of the irradiated devices are observed.

Keywords

Hall effect; Hall effect devices; Kerr magneto-optical effect; cobalt; focused ion beam technology; ion beam effects; magnetic multilayers; magnetisation reversal; perpendicular magnetic anisotropy; platinum; sputter deposition; Co-Pt; DC magnetron sputtering; FIB; Si-SiO₂; extraordinary Hall effect measurements; ion irradiation; magnetic reversal; multilayers; perpendicular magnetic anisotropy; polar magneto-optical Kerr effect; temperature-dependent magnetic properties; Couplings; Magnetic domain walls; Magnetic domains; Magnetic multilayers; Nonhomogeneous media; Radiation effects; Temperature measurement;

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.2015.7157634

Filename

7157634