학술논문
Photoinduced Dynamics in the Charge Density Wave Compound 4HB-TaSe2
Document Type
article
Author
Source
EPJ Web of Conferences, Vol 41, p 03024 (2013)
Subject
Language
English
ISSN
2100-014X
Abstract
We report on ultrafast photoindued charge density wave (CDW) dynamics in the transition-metal dichalcogenide 4Hb-TaSe2, studied with ultrafast electron diffraction. Fluence dependence of the lattice superstructure suppression show a phase transition from the commensurate to the incommensurate phase of 4Hb-TaSe2. Unusually long recovery times of perturbed charge density waves indicate th importance of a coupling between the two dimensional CDWs.