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          Institute: MPI für Festkörperforschung     Collection: FKF Publikationen 2002     Display Documents



  history
ID: 7079.0, MPI für Festkörperforschung / FKF Publikationen 2002
X-ray scattering study of the incommensurate phase in Mg-doped CuGeO3
Authors:Christianson, R. J.; Wang, Y. J.; LaMarra, S. C.; Birgeneau, R. J.; Kiryukhin, V.; Masuda, T.; Tsukada, I.; Uchinokura, K.; Keimer, B.
Language:English
Date of Publication (YYYY-MM-DD):2002
Title of Journal:Physical Review B
Volume:66
Issue / Number:17
Sequence Number of Article:174105
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:We present results of a systematic x-ray scattering study of
the effects of Mg doping on the high-field incommensurate phase
of CuGeO3. Lorentzian-squared line shapes, the changing of the
first-order transition to second order, and the destruction of
long-range order with infinitesimal doping are observed,
consistent with random-field effects in a three-dimensional XY
system. Values for the soliton width in pure and lightly doped
CuGeO3 are deduced. We find that even a very small doping has a
drastic effect on the shape of the lattice modulation.
External Publication Status:published
Document Type:Article
Communicated by:Michaela Asen-Palmer
Affiliations:MPI für Festkörperforschung
External Affiliations:; MIT, Dept Phys, Cambridge, MA 02139 USA
; Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada
; Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA
; Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan
; Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany
Identifiers:ISI:000179611700026
ISSN:1098-0121
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