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Techniques and methods

Infrared studies under pressure at the infrared beamline SISSI at ELETTRA

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Pages 639-643 | Received 06 Sep 2009, Published online: 15 Dec 2009
 

Abstract

Transition metal oxides often display insulator to metal transitions (MIT) with conductivity jumps up to several orders of magnitude, which makes them very attractive both for technological applications and for the several fundamental issues they raise. Information about the mechanism inducing the MIT may be gained by means of infrared (IR) spectroscopy. We present here the capabilities of the IR synchrotron source SISSI (Synchrotron Infrared Source for Spectroscopy and Imaging), at the Italian storage ring ELETTRA. We demonstrate SISSI to be a powerful source for optical studies of pressure-induced insulator-to-metal transitions, reporting on V3O5 and (V0.989Cr0.011)2O3 as examples.

Acknowledgements

We wish to thank E. Arcangeletti, P. Calvani, L. Degiorgi, D. Di Castro, M. Kiskinova, M. Lavagnini, C. Marini, M. Marsi, P. Metcalf, D. Nicoletti, A. Sacchetti, V.I. Sidorov, and L. Vaccari.

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