Effective Hamiltonian and electronic states in oxide superconductors

✍ Scribed by S. Ishihara; H. Matsumoto; M. Tachiki

• Book ID: 104356218
• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 347 KB
• Volume: 165-166
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/s0921-4526(09)80088-4

✦ Synopsis

The electronic states near the Fermi level in insulator-metal transition region of p-type oxide superconductors are studied in an effective Hamiltonian obtained from the p-d mixing model. The effective spin-spin interaction induces a tail structure at the top of the occupied p-band and a new narrow band develops with hole doping at the Fermi level, splitting from the main p-band. The obtained effective Hamiltonian seems to describe the change of electronic states even in insulator-metal transition region.

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