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Incommensurate interactions and nonconventional spin-Peierls transition in TiOBr

Title data

van Smaalen, Sander ; Palatinus, Lukas ; Schönleber, Andreas:
Incommensurate interactions and nonconventional spin-Peierls transition in TiOBr.
In: Physical Review B. Vol. 72 (2005) Issue 2 . - 020105.
ISSN 0163-1829
DOI: https://doi.org/10.1103/PhysRevB.72.020105

Official URL: Volltext

Project information

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

Temperature-dependent x-ray diffraction of the low-dimensional spin-1∕2 quantum magnet TiOBr shows that the phase transition at Tc2=47.1(4)K corresponds to the development of an incommensurate superstructure. Below Tc1=26.8±0.3K the incommensurate modulation locks in into a twofold superstructure similar to the low-temperature spin-Peierls state of TiOCl. Frustration between intra- and interchain interations within the spin-Peierls scenario, and competition between the two-dimensional magnetic order and one-dimensional spin-Peierls order are discussed as possible sources of the incommensurability.

Further data

Item Type: Article in a journal
Refereed: Yes
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: 16 Mar 2016 09:08
Last Modified: 26 Nov 2019 10:53
URI: https://eref.uni-bayreuth.de/id/eprint/31840