40èmes Journées des Actinides & 2nd Workshop on Actinide Targets

Electrical transport properties of single crystalline U2Cu4As5

28 Mar 2010, 16:30

20m

503/1-001 - Council Chamber (CERN)

oral Theory, electronic structure Strongly Correlated Systems I

Speaker

Dr Daniel Gnida (Institute of Low Temperature and Structure Research, Polish Academy of Sciences)

Description

The ternary uranium arsenide U2Cu4As5 crystallizes with a body-centred tetragonal structure of its own type (space group I4/mmm, lattice parameters: a = 3.990 Ă, b = 24.299 Ă) [1]. Magnetic susceptibility measurements revealed that the compound orders antiferromagnetically at TN = 189 K [1]. The onset of the ordered state is accompanied by a rapid drop in the electrical resistivity [1]. Here, we report on the results of our recent specific heat, electrical resistivity, magnetoresistivity and Hall coefficient measurements, performed in wide ranges of temperature and magnetic field on high-quality single crystals of U2Cu4As5 grown by chemical vapour transport method.

Presentation materials

Formatted Abstract

Abstract_43_Gnida.pdf