TY - JOUR
T1 - Mott-Anderson transition controlled by a magnetic field in pyrochlore molybdate
AU - Hanasaki, N.
AU - Kinuhara, M.
AU - Kézsmárki, I.
AU - Iguchi, Satoshi
AU - Miyasaka, S.
AU - Takeshita, N.
AU - Terakura, C.
AU - Takagi, H.
AU - Tokura, Y.
PY - 2006/3/30
Y1 - 2006/3/30
N2 - The pyrochlore molybdate Gd2Mo2O7 locates near the phase boundary between the ferromagnetic-metallic and the spin-glass insulating state. This metal-insulator transition is governed on a large energy scale by the electron-correlation effect, while the geometrical frustration causes the random potential. The magnetic field can tune the randomness of the potential and control, under a suitable pressure, the continuous Mott-Anderson transition precisely. The critical exponent (μ=1.04±0.1) of the Mott-Anderson transition has been determined for this ferromagnetic orbital-degenerate electron system.
AB - The pyrochlore molybdate Gd2Mo2O7 locates near the phase boundary between the ferromagnetic-metallic and the spin-glass insulating state. This metal-insulator transition is governed on a large energy scale by the electron-correlation effect, while the geometrical frustration causes the random potential. The magnetic field can tune the randomness of the potential and control, under a suitable pressure, the continuous Mott-Anderson transition precisely. The critical exponent (μ=1.04±0.1) of the Mott-Anderson transition has been determined for this ferromagnetic orbital-degenerate electron system.
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U2 - 10.1103/PhysRevLett.96.116403
DO - 10.1103/PhysRevLett.96.116403
M3 - Article
AN - SCOPUS:33645144044
VL - 96
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 11
M1 - 116403
ER -