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S=1/2 chains and spin-Peierls transition in TiOCl by Seidel, Alexander; Marianetti, Chris A.; Chou, F. C.; Ceder, Gerbrand; Lee, Patrick A. is a scholarly article available to read on EtoBox.

What is S=1/2 chains and spin-Peierls transition in TiOCl about?

We study TiOCl as an example of an S=1/2 layered Mott insulator. From our analysis of new susceptibility data, combined with LDA and LDA+U band structure calculations, we conclude that orbital ordering produces quasi-one-dimensional spin chains and that TiOCl is a new example of Heisenberg-chains which undergo a spin-Peierls transition. The energy scale is an order of magnitude larger than that of previously known examples. The effects of non-magnetic Sc impurities are explained using a model of broken finite chains.

Author

Seidel, Alexander; Marianetti, Chris A.; Chou, F. C.; Ceder, Gerbrand; Lee, Patrick A.

Published

2002

Language

EN