Structure of the incommensurate phase of the quantum magnet TiOCl

Andreas Schönleber, Sander van Smaalen, Lukáš Palatinus
  • Physical Review B, June 2006, American Physical Society (APS)
  • DOI: 10.1103/physrevb.73.214410

Incommensurate structure of TiOCl

What is it about?

The incommensurately modulated structure is reported for the low-dimensional spin-1∕2 quantum magnet TiOCl and the structural distortions in the spin-Peierls state (stable below Tc1=67K) and in the incommensurate phase (stable between Tc1 and Tc2=90K) is analyzed.

Why is it important?

Both the incommensurability and the twofold superstructure at low temperatures are the result of frustration between a spin-Peierls pairing on chains of Ti atoms as driving force and elastic coupling between neighboring chains mediated by the oxygen atoms.

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