TY - JOUR
T1 - Anomalous Magnetotransport Properties of R2Mo2O7 near the Magnetic Phase Boundary
AU - Katsufuji, T.
AU - Hwang, H. Y.
AU - Cheong, S. W.
PY - 2000/2/28
Y1 - 2000/2/28
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevLett.84.1998
DO - 10.1103/PhysRevLett.84.1998
M3 - Article
C2 - 21923216
AN - SCOPUS:0001434547
SN - 0031-9007
VL - 84
SP - 1998
EP - 2001
JO - Physical Review Letters
JF - Physical Review Letters
IS - 9
ER -