Spin Transport in Multi Wall Carbon Nanotubes with Co Electrodes
WANG Tian-Xing1, WEI Hong-Xiang1, HAN Xiu-Feng1, R. M. Langford2, Martin Thornton2, M. A. Bari2, J. M. D. Coey2
1State Key Laboratory of Magnetism, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080
2Department of Physics, Trinity College, Dublin 2, Ireland
Spin Transport in Multi Wall Carbon Nanotubes with Co Electrodes
WANG Tian-Xing1;WEI Hong-Xiang1;HAN Xiu-Feng1;R. M. Langford2;Martin Thornton2;M. A. Bari2;J. M. D. Coey2
1State Key Laboratory of Magnetism, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080
2Department of Physics, Trinity College, Dublin 2, Ireland
Abstract： The magnetic field dependent transport behaviour of Co contacted multi-wall nanotubes is investigated. A sample with three Co electrodes has been measured by two-channel method with an in-plane magnetic field. When the in-plane magnetic field is perpendicular to the tube, high positive magnetoresistance up to 30% is btained at low temperature from 3K to 25K and with field parallel to the tube, negative magnetoresistance up to 15% is observed only from the high resistance junction. The detailed positive and negative magnetoresistance behaviour also changes with temperature.
WANG Tian-Xing;WEI Hong-Xiang;HAN Xiu-Feng;R. M. Langford;Martin Thornton;M. A. Bari;J. M. D. Coey. Spin Transport in Multi Wall Carbon Nanotubes with Co Electrodes[J]. 中国物理快报, 2006, 23(10): 2852-2855.
WANG Tian-Xing, WEI Hong-Xiang, HAN Xiu-Feng, R. M. Langford, Martin Thornton, M. A. Bari, J. M. D. Coey. Spin Transport in Multi Wall Carbon Nanotubes with Co Electrodes. Chin. Phys. Lett., 2006, 23(10): 2852-2855.
2006, Vol. 23 
