Strongly correlated electron systems are of great interest because of their complex phenomenology. Difficulties in achieving a proper understanding of these phenomena lie in the subtle interplay of electron-electron (U) interaction, electron-phonon (e-ph) interaction, and the electron bandwidth (W). Experimentally, W can be varied either by chemical doping or by applying hydrostatic pressure. The latter procedure is preferable since it permits to continuously tune W without introducing impurities and disorder.

High pressures can be achieved through the use of a diamond anvil cell (DAC). However, the small dimensions of the samples to be placed in a DAC make infrared measurements at high pressure a very challenging technique. The high brightness of an infrared synchrotron radiation source (IRSR) is of great help for performing measurements in a DAC with an adequate signal to noise ratio and over a broad spectral range.

We present here both reflectivity and transmission measurements performed at the IRSR beamline SISSI@Elettra. A special focus will be dedicated to the study of pressure-induced metal to insulator transitions in different vanadium oxide compounds.

• Legal notice:
  

  Copyright (c) Pielaszek Research, all rights reserved.
  The above materials, including auxiliary resources, are subject to Publisher's copyright and the Author(s) intellectual rights. Without limiting Author(s) rights under respective Copyright Transfer Agreement, no part of the above documents may be reproduced without the express written permission of Pielaszek Research, the Publisher. Express permission from the Author(s) is required to use the above materials for academic purposes, such as lectures or scientific presentations.
  In every case, proper references including Author(s) name(s) and URL of this webpage: https://science24.com/paper/11346 must be provided.