Anomalous magnetotransport properties of R2Mo2O7 near the magnetic phase boundary

Citation
T. Katsufuji et al., Anomalous magnetotransport properties of R2Mo2O7 near the magnetic phase boundary, PHYS REV L, 84(9), 2000, pp. 1998-2001
Citations number
12
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
0031-9007 → ACNP
Volume
84
Issue
9
Year of publication
2000
Pages
1998 - 2001
Database
ISI
SICI code
0031-9007(20000228)84:9<1998:AMPORN>2.0.ZU;2-8
Abstract
The magnetic and transport properties of pyrochlore R2Mo2O7 have been studi ed with variation of the rare earth (R). The change of the mean ionic radiu s of R, which induces change of the lattice structure, determines the magne tic ground state (ferromagnetic or spin glass), and the magnetic phase boun dary is correlated with the metal-insulator crossover. Furthermore, we foun d enhanced magnetoresistance and unusual residual anomalous Hall effect at low temperatures near the phase boundary, which can be attributed to the co existence of both phases.