Dynamics in the dimerised and high field incommensurate phase of CuGeO$_3$

A. Revcolevschi (Lab. Sol. St. Chemistry; G. Martinez ( MPI/CNRS High Magnetic Field Laboratory; Grenoble) G. Dhalenne; Orsay); P.H.M. van Loosdrecht; S. Huant; Univ. Paris-Sud

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Dynamics in the dimerised and high field incommensurate phase of CuGeO₃

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arxiv cond-mat/9606056 v1 pith:QO3Z3Y5Q submitted 1996-06-10 cond-mat

Dynamics in the dimerised and high field incommensurate phase of CuGeO₃

P.H.M. van Loosdrecht , S. Huant , G. Martinez ( MPI/CNRS High Magnetic Field Laboratory , Grenoble) G. Dhalenne , A. Revcolevschi (Lab. Sol. St. Chemistry , Univ. Paris-Sud , Orsay) This is my paper

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keywords cugeofieldhighabsorptiondependentdimerisedfieldsincommensurate

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Temperature ($2.3<T<40$\ K) and magnetic field ($0<B<17$\ T) dependent far infrared absorption spectroscopy on the spin-Peierls coumpound CuGeO$_3$\ has revealed several new absorption processes in both the dimerised and high field phase of CuGeO$_3$. These results are discussed in terms of the modulation of the CuGeO$_3$\ structure. At low fields this is the well known spin-Peierls dimerisation. At high fields the data strongly suggests a field dependent incommensurate modulation of the lattice as well as of the spin structure.

Dynamics in the dimerised and high field incommensurate phase of CuGeO₃

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