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Lecture F. Parmigiani

Roster

WhenWhere
23 June 2009 FWN-Building 5118.-152, Nijenborgh 4, 9747 AG, Groningen
Speaker: Prof. Dr. F. Parmigiani
Affiliation: University of Trieste, Italy
Title: Low energy excitations and time-dependent dielectric function in CuGeO3
Date: Tue Jun 23, 2009
Start: 13.30
Location: FWN-Building 5118.-152
Host: Paul van Loosdrecht
Telephone: +31 50 363 8149

Abstract

Nowadays one of the most interesting problem in condensed matter is represented by the understanding of the photo-excited many-body processes in cuprates by measuring the time-dependent dielectric function. Among the wide family of the cuprates CuGeO3 represents a quite suitable system for photo-induced charge transfer (CT) time resolved experiments.

Here, after the studies we have reported in the past on the d-d phonon-assisted, CT and Zhang-Rice (ZR) excitations in CuGeO3 ,by XPS, ResPES and RIXS, the first measurements of the TR-dielectric function and theidentification of the main mechanisms related to the d-d and CT photo-excitations will be presented and discussed.

Last modified:22 October 2012 2.30 p.m.