TY - JOUR
T1 - Large spin injection into single- and multi-walled carbon nanotubes
AU - Ishiwata, Y.
AU - Maki, H.
AU - Tsuya, D.
AU - Suzuki, M.
AU - Ishibashi, K.
PY - 2005
Y1 - 2005
N2 - We have investigated spin-dependent transport through CoFe-contacted single- and multi-walled carbon nanotubes (SWNT and MWNT) with the contact separation of 200 - 300 nm. At low temperature, the devices exhibit very high magnetoresistance (MR) ratios, which reach to ∼1200% for the SWNT-based system and ∼150% for the MWNT-based system. In addition, the MR characteristics show coercivity enhancement or exchange bias, depending on the properties of contacts. Another MWNT device widely shows the MR oscillation overlapped on the hysteretic change near 0 T.
AB - We have investigated spin-dependent transport through CoFe-contacted single- and multi-walled carbon nanotubes (SWNT and MWNT) with the contact separation of 200 - 300 nm. At low temperature, the devices exhibit very high magnetoresistance (MR) ratios, which reach to ∼1200% for the SWNT-based system and ∼150% for the MWNT-based system. In addition, the MR characteristics show coercivity enhancement or exchange bias, depending on the properties of contacts. Another MWNT device widely shows the MR oscillation overlapped on the hysteretic change near 0 T.
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U2 - 10.1002/pssc.200460775
DO - 10.1002/pssc.200460775
M3 - Article
AN - SCOPUS:27344440522
SN - 1610-1634
VL - 2
SP - 3137
EP - 3140
JO - Physica Status Solidi C: Conferences
JF - Physica Status Solidi C: Conferences
IS - 8
ER -