TY - GEN
T1 - Structural, magnetic and electric transport properties for Co2FeAl0.5Si0.5/n-GaaS junctions
AU - Tezuka, Nobuki
AU - Saito, Tatsuya
AU - Matsuura, Masashi
AU - Sugimoto, Satoshi
N1 - Publisher Copyright:
© (2015) Trans Tech Publications, Switzerland.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2015
Y1 - 2015
N2 - 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.
AB - 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.
KW - GaAs
KW - Heusler alloy
KW - Spin injection
UR - http://www.scopus.com/inward/record.url?scp=84945181207&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84945181207&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/SSP.233-234.411
DO - 10.4028/www.scientific.net/SSP.233-234.411
M3 - Conference contribution
AN - SCOPUS:84945181207
SN - 9783038354826
T3 - Solid State Phenomena
SP - 411
EP - 414
BT - Solid State Phenomena
A2 - Perov, Nikolai
A2 - Semisalova, Anna
PB - Trans Tech Publications Ltd
T2 - 6th Moscow International Symposium on Magnetism, MISM 2014
Y2 - 29 June 2014 through 3 July 2014
ER -