The effect of a magnetic field on Jahn-Teller ordering in the monoclinic crystal RbDy(WO4)2

V. P. D'yakonov, V. I. Markovich, V. L. Kovarskiǐ, A. V. Markovich, M. Borowiec, A. Endzheǐchak, G. Szymczak

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9 Scopus citations


This paper presents the results of a study of the thermal properties of monoclinic single-crystal RbDy(WO4)2 at temperatures of 2-15 K and in magnetic fields up to 6 T. From the results of measurements of the heat capacity and thermograms, two structural phase transitions are detected, at Tc1 = 4.9 K and Tc2 = 9.0 K. The transformation from the high-temperature phase to the low-temperature phase occurs via an intermediate phase. The field dependences of the critical temperatures are found for various magnetic-field orientations. H-T phase diagrams are constructed for H∥a and H∥c. An anomalous increase (by almost an order of magnitude) of the relaxation time of the system, associated with structural instability of the crystal lattice, is detected in the region of the structural phase transitions. A symmetry analysis is carried out, and possible crystal structures of the low-temperature phase are indicated.

Original languageEnglish
Pages (from-to)2017-2020
Number of pages4
JournalPhysics of the Solid State
Issue number12
StatePublished - 1 Jan 1998
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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