Mott-Anderson transition controlled by a magnetic field in pyrochlore molybdate

N. Hanasaki, M. Kinuhara, I. Kézsmárki, S. Iguchi, S. Miyasaka, N. Takeshita, C. Terakura, H. Takagi, Y. Tokura

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number116403
JournalPhysical Review Letters
Volume96
Issue number11
DOIs
Publication statusPublished - 2006

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molybdates
magnetic fields
frustration
spin glass
electrons
insulators
exponents
orbitals
causes
metals
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Hanasaki, N., Kinuhara, M., Kézsmárki, I., Iguchi, S., Miyasaka, S., Takeshita, N., ... Tokura, Y. (2006). Mott-Anderson transition controlled by a magnetic field in pyrochlore molybdate. Physical Review Letters, 96(11), [116403]. https://doi.org/10.1103/PhysRevLett.96.116403

Mott-Anderson transition controlled by a magnetic field in pyrochlore molybdate. / Hanasaki, N.; Kinuhara, M.; Kézsmárki, I.; Iguchi, S.; Miyasaka, S.; Takeshita, N.; Terakura, C.; Takagi, H.; Tokura, Y.

In: Physical Review Letters, Vol. 96, No. 11, 116403, 2006.

Research output: Contribution to journalArticle

Hanasaki, N, Kinuhara, M, Kézsmárki, I, Iguchi, S, Miyasaka, S, Takeshita, N, Terakura, C, Takagi, H & Tokura, Y 2006, 'Mott-Anderson transition controlled by a magnetic field in pyrochlore molybdate', Physical Review Letters, vol. 96, no. 11, 116403. https://doi.org/10.1103/PhysRevLett.96.116403
Hanasaki, N. ; Kinuhara, M. ; Kézsmárki, I. ; Iguchi, S. ; Miyasaka, S. ; Takeshita, N. ; Terakura, C. ; Takagi, H. ; Tokura, Y. / Mott-Anderson transition controlled by a magnetic field in pyrochlore molybdate. In: Physical Review Letters. 2006 ; Vol. 96, No. 11.
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