Structural, magnetic and electric transport properties for Co2FeAl0.5Si0.5/n-GaaS junctions

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The authors have been investigated structural, magnetic and electrical transport properties for CFAS/n-GaAs junctions. From cross sectional TEM image, RHEED and XRD patternz of thin CFAS films, CFAS films found to be grown epitaxially on GaAs, and shown L21-ordered structure for the films with substrate temperature (TCFAS) of 300°C and 400°C. It is hard to find some additional phase around the interface between CFAS and GaAs. Magnetic moment (and magnetic anisotropy energy) of CFAS increased (and decreased) with increasing TCFAS up to 300°C and decreased (and increased) at TCFAS of 400°C, respectively. The asymmetry of current(J)-voltage(V) curve for the junction with TCFAS =300°C was found to be larger than those for other junctions. It was found there is the relation between TCFAS dependence of spin signal obtained by three terminal Hanle or four terminal non-local measurement and that of magnetic moment, magnetic anisotropy field or asymmetry of J-V curve.

Original languageEnglish
Title of host publicationSolid State Phenomena
EditorsNikolai Perov, Anna Semisalova
PublisherTrans Tech Publications Ltd
Pages411-414
Number of pages4
ISBN (Print)9783038354826
DOIs
Publication statusPublished - 2015
Event6th Moscow International Symposium on Magnetism, MISM 2014 - Moscow, Russian Federation
Duration: 2014 Jun 292014 Jul 3

Publication series

NameSolid State Phenomena
Volume233-234
ISSN (Print)1012-0394
ISSN (Electronic)1662-9779

Other

Other6th Moscow International Symposium on Magnetism, MISM 2014
Country/TerritoryRussian Federation
CityMoscow
Period14/6/2914/7/3

Keywords

  • GaAs
  • Heusler alloy
  • Spin injection

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

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