Temperature dependence of positive and negative magnetoresistances of tantalum-covered multiwalled carbon nanotubes  

作　　者：Julienne lmpundu Wenxiang Wang Zheng Wei Yushi Xu Yu Wang Jiawang You Wenbin Huang Yong Jun Li Lianfeng Sun 

机构地区：[1]CAS Key Laboratory of Nanosystem and Hierarchical Fabrication,Nanofabrication laboratory,CAS Center for Excellence in Nanoscience,National Center for Nanoscience and Technology,Beijing 100190,China [2]University of Chinese Academy of Sciences,Beijing 100049,China [3]Mechanical Engineering Research Institute,Xi'an 710032,China

出　　处：《Frontiers of physics》2024年第6期69-75,共7页物理学前沿(英文版)

基　　金：support provided by the Organization for Women in Science for the Developing World(OWSD)Postgraduate Fellowship Program and the Swedish International Development Cooperation Agency(SIDA);the National Natural Science Foundation of China(No.52372256);the CAS Project for Young Scientists in Basic Research(YSBR-030);the Major Nanoprojects of Ministry of Science and Technology of China(Grant No.2018YFA0208403);the Strategic Priority Research Program of Chinese Academy of Sciences(Grant No.XDB36000000).

摘　　要：Carbon nanotubes(CNTs)have garnered significant attention due to their remarkable electronic and magnetic properties.In this research,we intro-duced multiwalled carbon nanotubes covered with tantalum(MWNTs/Ta)to systematically modulate the magnetoresistive properties of the MWNTs/Ta hybrid nanostructures.We observed distinct changes in both positive and negative magnetoresistances of MWNTs/Ta across a broad temperature range using a physical property measurement system and a four-terminal method.This study on temperature-dependent magnetore-sistive behavior of the MWNTs/Ta sheds light on the fundamental proper-ties of carbon-based materials and holds promise for practical applications inthefieldofspintronicdevices.

关 键 词：multiwalled carbon nanotubes TANTALUM MAGNETORESISTANCE temperature dependence physical property measurement system four-terminalmethod 

分 类 号：TB3[一般工业技术—材料科学与工程]