Abstract
AbstractThe alkali halides are ionic compounds. Each alkali atom donates an electron to a halogen atom, leading to ions with full shells. The valence band is mainly located on halogen atoms, while, in a traditional picture, the conduction band is mainly located on alkali atoms. Scanning tunnelling microscopy of NaCl at 4 K actually shows that the conduction band is located on Cl− because the strong Madelung potential reverses the order of the Na+ 3s and Cl− 4s levels. We verify this reversal is true for both atomically thin and bulk NaCl, and discuss implications for II-VI and I-VII compounds.
Publisher
Springer Science and Business Media LLC
Subject
General Physics and Astronomy,General Biochemistry, Genetics and Molecular Biology,General Chemistry,Multidisciplinary
Reference41 articles.
1. Seitz, F. The Modern Theory Of Solids (McGraw-Hill Book Co., 1940).
2. Slater, J. C. Magnetic effects and the hartree-fock equation. Phys. Rev. 82, 538–541 (1951).
3. Mott, S. N. F. Metal-insulator Transitions (Taylor & Francis, 1974).
4. Fujimori, A., Minami, F. & Sugano, S. Multielectron satellites and spin polarization in photoemission from Ni compounds. Phys. Rev. B 29, 5225–5227 (1984).
5. Fujimori, A. & Minami, F. Valence-band photoemission and optical absorption in nickel compounds. Phys. Rev. B 30, 957–971 (1984).
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