2005/04/18 by Sander van Smaalen, Lukáš Palatinus, Lukas Palatinus +2 · 5 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Magnetic and transport properties of perovskites and related materials #Physics of Superconductivity and Magnetism #cond-mat.other
paper · pdf · doi:10.1103/physrevb.72.020105
published as Phys. Rev. B 72, 020105(R), 2005 · 5 pages including 3 figures and 1 table
arxiv created 2005/04/18 · openalex publication_date 2005/07/22 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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)\phantom\rule0.3em0exK corresponds to the development of an incommensurate superstructure. Below Tc1=26.8\ifmmode±\else\textpm\fi0.3\phantom\rule0.3em0exK 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.