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Spin-Peierls and incommensurate states in layeredS=1/2 system TiOCl

Authors
Journal
Journal of Physics and Chemistry of Solids
0022-3697
Publisher
Elsevier
Publication Date
Volume
68
Issue
11
Identifiers
DOI: 10.1016/j.jpcs.2007.08.023
Keywords
  • D. Nmr

Abstract

Abstract We demonstrate that TiOCl is a good model inorganic system to investigate spin-Peierls state. Our 35Cl and 47,49Ti NMR data show that a pseudo spin-gap behavior below T*=135 K precedes successive phase transitions at T c =94 K and T c ′ = 66 K into a singlet spin-Peierls ground state with a large energy gap E g / k B =430 K.

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