Spin Transport in Multi Wall Carbon Nanotubes with Co Electrodes
Spin Transport in Multi Wall Carbon Nanotubes with Co Electrodes作者机构：State Key Laboratory of Magnetism Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100080 Department of Physics Trinity College Dublin 2 Ireland
出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)
年 卷 期：2006年第23卷第10期
页 面：2852-2855页
核心收录：
学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学]
基 金：Supported by the Science Foundation of Ireland (SFI) China-Ireland Science and Technology Collaboration Research Fund between Science Foundation Ireland (SFI) and State Key Project of Fundamental Research Ministry of Science and Technology (M0ST) China under Grant No 2001CB610601 the National Natural Science Foundation of China under Grant Nos 10510136 10574156 and 50271081 and the Distinct Young Researcher Foundation under Grant Nos 50325104 and 50528101
主 题：COHERENT TRANSPORT MAGNETORESISTANCE RESISTANCE
摘 要：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 obtained at low temperature from 3 K 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.
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