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

Title data

Kuntscher, Christine A. ; Ebad-Allah, J. ; Pashkin, A. ; Frank, S. ; Klemm, Matthias ; Horn, Siegfried ; Schönleber, Andreas ; van Smaalen, Sander ; Hanfland, Michael ; Glawion, S. ; Sing, M. ; Claessen, Ralph:
Filling of the Mott–Hubbard gap in the oxyhalides TiOCl and TiOBr induced by external pressure.
In: High Pressure Research. Vol. 29 (2009) Issue 4 . - pp. 509-513.
ISSN 1477-2299
DOI: https://doi.org/10.1080/08957950903386334

Official URL: Volltext

Abstract in another language

By pressure-dependent infrared microspectroscopy, we observe the filling of the Mott–Hubbard gap in TiOCl and TiOBr above a critical pressure P c. Concomitant with the gap filling, a structural phase transition occurs at P c. According to our pressure-dependent powder X-ray diffraction data, a mixture of the ambient-pressure orthorhombic Pmmn phase and a dimerized, monoclinic P2₁lm phase exists above P c.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: Special Issue: PROCEEDINGS OF THE XLVIITH EUROPEAN HIGH PRESSURE RESEARCH GROUP (EHPRG 47) MEETING, PARIS (FRANCE), 6–11 SEPTEMBER 2009
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Chair Crystallography
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Chair Crystallography > Chair Crystallography - Univ.-Prof. Dr. Sander van Smaalen
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 07 Aug 2015 09:00
Last Modified: 04 Aug 2016 05:31
URI: https://eref.uni-bayreuth.de/id/eprint/17607