Excitations of the field-induced soliton lattice in CuGeO3

M. Enderle; H. M. Roennow; D. F. McMorrow; L. P. Regnault; G. Dhalenne; A. Revcolevschi; P. Vorderwisch; H. Schneider; P. Smeibidl; M. Meissner

doi:10.1103/physrevlett.87.177203

arXiv · cond-mat/0008202

Excitations of the field-induced soliton lattice in CuGeO3

M. Enderle·H. M. Roennow·D. F. McMorrow·L. P. Regnault·G. Dhalenne·A. Revcolevschi·P. Vorderwisch·H. Schneider·P. Smeibidl·M. Meissner

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Abstract

Here we report the first inelastic neutron scattering study of the magnetic excitations in the incommensurate phase of a spin-Peierls material. The results on CuGeO3 provide direct evidence of a finite excitation gap, two sharp magnetic excitation branches and a very low-lying excitation which is identified as a phason mode, the Goldstone mode of the incommensurate soliton lattice.

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M. Enderle, H. M. Roennow, D. F. McMorrow, L. P. Regnault, G. Dhalenne, A. Revcolevschi, P. Vorderwisch, H. Schneider, P. Smeibidl, M. Meissner. 2000-08-14. Excitations of the field-induced soliton lattice in CuGeO3. https://doi.org/10.1103/physrevlett.87.177203

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