TY - JOUR
T1 - Anomalous pressure-induced enhancement of GMR in Fe/Cr magnetic multilayers
AU - Suenaga, Kazufumi
AU - Higashihara, Shuhei
AU - Oomi, Gendo
AU - Saito, Kesami
AU - Mitani, Seiji
AU - Takanashi, Koki
PY - 2007/1/1
Y1 - 2007/1/1
N2 - We report the first observation of a large pressure-induced enhancement of the giant magnetoresistance (GMR) in magnetic multilayers (MMLs). In Fe/Cr MMLs with a Cr layer thickness (tCr) of ∼30 Å, a crossover from biquadratic to bilinear interlayer exchange coupling (IEC) was clearly observed by applying pressure and simultaneously the GMR under high pressure (>2 GPa) was enhanced to be twice as large as that at ambient pressure. The enhanced GMR is attributed to the suppression of the biquadratic IEC due to the application of pressure.
AB - We report the first observation of a large pressure-induced enhancement of the giant magnetoresistance (GMR) in magnetic multilayers (MMLs). In Fe/Cr MMLs with a Cr layer thickness (tCr) of ∼30 Å, a crossover from biquadratic to bilinear interlayer exchange coupling (IEC) was clearly observed by applying pressure and simultaneously the GMR under high pressure (>2 GPa) was enhanced to be twice as large as that at ambient pressure. The enhanced GMR is attributed to the suppression of the biquadratic IEC due to the application of pressure.
KW - Fe/Cr magnetic multilayer
KW - Giant magnetoresistance
KW - High pressure
KW - Interlayer exchange coupling
KW - Spin-dependent scattering
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U2 - 10.1143/JPSJS.76SA.90
DO - 10.1143/JPSJS.76SA.90
M3 - Article
AN - SCOPUS:70349428708
VL - 76
SP - 90
EP - 91
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - SUPPL. A
ER -