Ce3Cu3Sb4: A semimetal with a spontaneous magnetic moment

Authors
Wachter, P Degiorgi, L Wetzel, G Schwer, H
Citation
P. Wachter et al., Ce3Cu3Sb4: A semimetal with a spontaneous magnetic moment, PHYS REV B, 60(13), 1999, pp. 9518-9524
Citations number
28
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
60
Issue
13
Year of publication
1999
Pages
9518 - 9524
Database
ISI
SICI code
0163-1829(19991001)60:13<9518:CASWAS>2.0.ZU;2-R
Abstract
It has been claimed by Patil et al. [Solid State Commun. 99, 419 (1996)] th at Ce3Cu3Sb4 is a Ce-based semiconducting ferromagnet. In this paper it is shown, mainly with Hall effect and far-infrared spectroscopy, that no gap i n the excitation spectrum exists, above as well as below the Curie temperat ure T-C. A maximum in the resistivity near T-C is due to trapped magnetic p olarons. The resistivity is an effect of the mobility of the charge carrier s. [S0163-1829(99)02137-2].