The metal-insulator transition in a copper-oxide superconductor is discussed. It is shown that at the composition where this occurs at zero temperatures, the number of carriers (bipolarons) varics at \(T\). This gives a tentative explanation of the behavior of the Hall coefficient. Professor Rao's w
Metal-insulator transition in Kondo-Heisenberg model of oxide superconductors
โ Scribed by H. Matsumoto; A.M. Allega; S. Odashima; F. Mancini
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 192 KB
- Volume
- 235-240
- Category
- Article
- ISSN
- 0921-4534
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โฆ Synopsis
By use of Kondo-Heisenberg model, effect of spin correlation to electron eneggy spectrum is investigated near the metal-insulator transition. Antiferromagnetic correlation strongly affects band dispersion. The difference of energy spectrum between the conventional Kondo-Heisenberg model and the one reduced from the p-d model is discussed.
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