Abstract
For a Cu4O8 cluster with periodic boundary conditions the single-particle excitation spectrum is calculated rigorously by a numerical method with use of a realistic parameter set. The spectrum shows dispersive character at low energies as well as little dispersion at high excitation energies in accordance with experiments using angle-resolved photoemission. The d8 final state is identified and its energy is found to be close to its experimental one.
Original language | English |
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Pages (from-to) | 2562-2565 |
Number of pages | 4 |
Journal | Physical Review B |
Volume | 42 |
Issue number | 4 |
DOIs | |
Publication status | Published - 1990 |
ASJC Scopus subject areas
- Condensed Matter Physics