A fast method for calculating magnetic hysteresis loops

Author

Stockem, I. ; Schroder, C.

Author_Institution

Bielefeld Inst. for Appl. Mater. Res., Bielefeld Univ. of Appl. Sci., Bielefeld, Germany

fYear

2015

fDate

11-15 May 2015

Firstpage

1

Lastpage

1

Abstract

This paper presents a fast method to calculate magnetic hysteresis loops of two different multilayer structures, a switchable exchange bias system consisting of Co/Cr₂O₃ and a CoFe/MgO/CoFe spin valve with perpendicular magnetization. The algorithm is implemented using the message passing interface library in combination with openMP. The temperature dependence of the coercive field of a single spin with uniaxial anisotropy is also studied. Observations show that the magnetization loop could be calculated many times faster on multi-processor machine than using the common dynamic calculation on one processor.

Keywords

chromium compounds; cobalt; cobalt alloys; coercive force; exchange interactions (electron); iron alloys; magnesium compounds; magnetic anisotropy; magnetic hysteresis; magnetic multilayers; magnetic switching; spin valves; Co-Cr₂O₃; CoFe-MgO-CoFe; coercive field; magnetic hysteresis loops; magnetization loop; message passing interface library; multilayer structures; multiprocessor machine; openMP; perpendicular magnetization; spin valve; switchable exchange bias system; temperature dependence; uniaxial anisotropy; Frequency modulation; Magnetic anisotropy; Magnetic fields; Magnetic hysteresis; Magnetic multilayers; Magnetization; Switches;

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.2015.7156966

Filename

7156966