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Quantum fluctuations at metal-insulator transitions of doped systems

Author

Listed:
  • Gandolfo, D.
  • Tonchev, N.S.
  • Verbeure, A.
  • Zagrebnov, V.A.

Abstract

For the Keldysh-Kopaev and the Mattis-Langer models the complete phase diagram (T,μ) is characterized. The degree of criticality of the electron-hole pairing fluctuation operator is obtained as a function of the degree of doping.

Suggested Citation

  • Gandolfo, D. & Tonchev, N.S. & Verbeure, A. & Zagrebnov, V.A., 1996. "Quantum fluctuations at metal-insulator transitions of doped systems," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 227(3), pages 301-313.
    • Handle: RePEc:eee:phsmap:v:227:y:1996:i:3:p:301-313
    DOI: 10.1016/0378-4371(95)00470-X
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    References listed on IDEAS

    as
    1. Brankov, J.G. & Tonchev, N.S. & Zagrebnov, V.A., 1975. "An exactly solvable model for metal-insulator phase transition," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 79(1), pages 125-127.
    2. Verbeure, A & Zagrebnov, V.A, 1995. "Collective excitations in the anharmonic crystal," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 215(3), pages 394-404.
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