Electronic Resource
Springer
The European physical journal
36 (1980), S. 235-243
ISSN:
1434-6036
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract A model for mixed valency and phase transitions at (001) SmS is suggested. Focussing on the electron-lattice coupling as a mechanism potentially responsible for both phenomena, the problem of the semi-infinite crystal is factorized and reduced to the investigation of a low-dimensional effective Hamiltonian matrix. Surface geometry and electronic structure are obtained simultaneously by numerical minimization of the free energy. The possible appearance of mixed valency and of phase transitions confined to the surface region and involving relaxed or reconstructed geometry is demonstrated.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01325287
Permalink
|
Location |
Call Number |
Expected |
Availability |