Soliton lattice in pure and diluted CuGeO3

V. Kiryukhin, B. Keimer, J. P. Hill, A. Vigliante

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99 Scopus citations

Abstract

We report a synchrotron x-ray scattering study of the magnetic-field-induced incommensurate phase of the spin-Peierls compound CuGeO3, in magnetic fields up to 13T. By measuring first and third harmonics of the incommensurate Bragg reflections as a function of field we show that the lattice modulation has the form of a soliton lattice. The soliton half-width, 13.6 lattice spacings, is surprisingly large. Dilution of the CuO2 spin-1 2 chains with spin-0 (Zn) and spin-1 (Ni) impurities results in a short-range-ordered incommensurate state with an anisotropic correlation length comparable to the average impurity separation.

Original languageEnglish (US)
Pages (from-to)4608-4611
Number of pages4
JournalPhysical review letters
Volume76
Issue number24
DOIs
StatePublished - 1996
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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