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:

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