Structural Transitions in Titanium-Diselenide
type: CreativeWork
description: The superlattice formation in TiSe(,2) appears to be due to an interaction between electrons and holes via a soft zone-boundry phonon. When the holes are filled by electrons from excess Ti, or removed by uncrossing the bands with zirconium doping, the superlattice transition is suppressed. When the electrons are removed by doping with vanadium, the transition is also suppressed. In all cases, the point at which the superlattice disappears coincides with the complete removal of one of the carriers. TiS(,2) has only electrons and does not transform, but it does have a diffuse streaking which is suggestive of a tendency toward the instability.
abstract: The superlattice formation in TiSe(,2) appears to be due to an interaction between electrons and holes via a soft zone-boundry phonon. When the holes are filled by electrons from excess Ti, or removed by uncrossing the bands with zirconium doping, the superlattice transition is suppressed. When the electrons are removed by doping with vanadium, the transition is also suppressed. In all cases, the point at which the superlattice disappears coincides with the complete removal of one of the carriers. TiS(,2) has only electrons and does not transform, but it does have a diffuse streaking which is suggestive of a tendency toward the instability.
author: Gaby, John Hand
language: eng
keywords: Physics, Condensed Matter
date published: 2015-05-13T15:22:23Z
date modified: 2026-07-22T22:26:10Z
provider: University of Illinois - Urbana-Champaign
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: University of Illinois at Urbana-Champaign

PropertyValue
property ID: Handle
value: http://hdl.handle.net/2142/77194