Anomalous Magnetotransport Properties of R2Mo2O7 near the Magnetic Phase Boundary

Takuro Katsufuji, H. Y. Hwang, S. W. Cheong

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Abstract

The magnetic and transport properties of pyrochlore R2Mo2O7 have been studied with variation of the rare earth (R). The change of the mean ionic radius of R, which induces change of the lattice structure, determines the magnetic ground state (ferromagnetic or spin glass), and the magnetic phase boundary is correlated with the metal-insulator crossover. Furthermore, we found enhanced magnetoresistance and unusual residual anomalous Hall effect at low temperatures near the phase boundary, which can be attributed to the coexistence of both phases.

Original languageEnglish
Pages (from-to)1998-2001
Number of pages4
JournalPhysical Review Letters
Volume84
Issue number9
Publication statusPublished - 2000 Feb 28
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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