A study of the anisotropy in magnetic, transport, and magnetotransport properties of has been made on large single crystals grown from Sb flux. Magnetic susceptibility of shows diamagnetic to paramagnetic crossover around 100 K. Electrical transport along two axes is semiconducting, whereas the third axis exhibits a metal-semiconductor crossover at temperature which is sensitive to current alignment and ranges between 40 and 80 K. In semiconducting transport is restored for resulting in large magnetoresistance in the crossover temperature range.
- Received 11 June 2002
- Revised 20 December 2002
- Published 14 April 2003
© 2003 The American Physical Society