Electronic Structure, Chemical Bonding, and Superconductivity of Silver Films on Germanium.
Abstract
The local electronic density of states and chemical bonding of a very thin Ag film on a Ge substrate have been calculated by the partitioned scattered-wave molecular-orbital method. The partial occupation of layered Ag Pi -bonding molecular orbitals at the Fermi energy, resulting from covalent bonding with the Ge substrate, is responsible for the incipient super-conductivity recently observed by Burns et al. for very thin epitaxially grown Ag films on Ge. These orbitals are unoccupied in nonsuperconducting pure Ag.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 10, 1984
- Accession Number
- ADA147720
Entities
People
- Keith H. Johnson
Organizations
- Massachusetts Institute of Technology