Open AccessMagnetism and transport properties of Heuser alloy Cu2VAl
Author(s) -
Wang Ben-Yang,
Zhengnan Qian,
Sui Yu,
Yuqiang Liu,
Wenhui Su,
Ming Zhang,
Zhuhong Liu,
Guodong Liu,
Guangheng Wu
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.3386
Subject(s) - condensed matter physics , materials science , ferromagnetism , magnetism , paramagnetism , scattering , alloy , electrical resistivity and conductivity , impurity , hall effect , magnetic alloy , physics , optics , quantum mechanics , composite material
We have investigated magnetic and transport properties of Heusler alloy Cu2 VAl. Magnetic measurements confirm that the magnetic transition from ferro magn etism to paramagnetism arises near 210K for Cu2VAl sample, which is a weak ferromagnet. Resistance curves show that there is a small jump of 1% in resista nce caused by the localized impurity superconduction phase transition around 7K. The scattering between electron-phonon is the main scattering mechanism. Furthe rmore, extraordinary Hall effect exists for side jump at temperatures below T C and the phase transition leads to Hall resistivity changing abnorma lly at 7K.