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The one-dimensional model of the off-centre potential of the fluorine ion in the NaBr lattice

Technical Report:

Abstract

Fluorine ions in NaBr have associated large dipole moments with low-lying energy levels. It is well known that the dipoles were found to have equilibrium orientations in the (110) direction. A one-dimensional, double-well harmonic oscillator potential model is assumed for the relaxation rate calculation of this off-centre system. It is possible by superimposing an asymmetric potential which localizes the particle in one potential well and assuming that, the coupling between the particle and the lattice vibrations can lead to the relaxation of the system. These preliminaries theoretical studies are used to determine the height of the potential barrier between the two minima of the off-centre potential in the one-dimensional case approximation. (author). 13 refs.
Authors:
Publication Date:
Oct 01, 1994
Product Type:
Technical Report
Report Number:
IC-94/316
Reference Number:
SCA: 665000; PA: AIX-26:013834; EDB-95:032853; SN: 95001325633
Resource Relation:
Other Information: PBD: Oct 1994
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CRYSTAL LATTICES; CRYSTAL MODELS; SODIUM BROMIDES; ANIONS; FLUORINE; HARMONIC OSCILLATORS; IMPURITIES; ONE-DIMENSIONAL CALCULATIONS; PHONONS; RELAXATION; TUNNEL EFFECT; 665000; PHYSICS OF CONDENSED MATTER
OSTI ID:
10112938
Research Organizations:
International Centre for Theoretical Physics (ICTP), Trieste (Italy)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Other: ON: DE95614310; TRN: XA9438471013834
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
11 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Despa, F. The one-dimensional model of the off-centre potential of the fluorine ion in the NaBr lattice. IAEA: N. p., 1994. Web.
Despa, F. The one-dimensional model of the off-centre potential of the fluorine ion in the NaBr lattice. IAEA.
Despa, F. 1994. "The one-dimensional model of the off-centre potential of the fluorine ion in the NaBr lattice." IAEA.
@misc{etde_10112938,
title = {The one-dimensional model of the off-centre potential of the fluorine ion in the NaBr lattice}
author = {Despa, F}
abstractNote = {Fluorine ions in NaBr have associated large dipole moments with low-lying energy levels. It is well known that the dipoles were found to have equilibrium orientations in the (110) direction. A one-dimensional, double-well harmonic oscillator potential model is assumed for the relaxation rate calculation of this off-centre system. It is possible by superimposing an asymmetric potential which localizes the particle in one potential well and assuming that, the coupling between the particle and the lattice vibrations can lead to the relaxation of the system. These preliminaries theoretical studies are used to determine the height of the potential barrier between the two minima of the off-centre potential in the one-dimensional case approximation. (author). 13 refs.}
place = {IAEA}
year = {1994}
month = {Oct}
}