PHYSICAL REVIEW LETTERS

ARABCHIGAVKANI N, SOMPHONSANE R, RAMAMOORTHY H, HE G, NATHAWAT J, YIN S, BARUT B, HE K, RANDLE MD, DIXIT R, SAKANASHI K, AOKI N, ZHANG K, WANG L, MEI WN, DOWBEN PA, FRANSSON J, BIRD JP

APPLIED PHYSICS LETTERS

SAKANASHI K, WADA N, MURASE K, OTO K, KIM GH, WATANABE K, TANIGUCHI T, BIRD JP, FERRY DK, AOKI N