Filling of the Mott–Hubbard gap in the oxyhalides TiOCl and TiOBr induced by external pressure

C. A. Kuntscher, J. Ebad-Allah, A. Pashkin, S. Frank, M. Klemm, S. Horn, A. Schönleber, S. van Smaalen, M. Hanfland, S. Glawion, M. Sing, R. Claessen
  • High Pressure Research, December 2009, Taylor & Francis
  • DOI: 10.1080/08957950903386334

High pressure phase transition in TiOCl and TiOBr

What is it about?

The filling of the Mott–Hubbard gap in TiOCl and TiOBr above a critical pressure Pc is observed, concomitant with a structural phase transition.

Why is it important?

Above Pc a mixture of the ambient-pressure orthorhombic Pmmn phase and a dimerized, monoclinic P21/m phase does exist.

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The following have contributed to this page: Priv.-Doz. Dr. Andreas Schönleber