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

doi:10.1134/1.1130654

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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Abstract

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 T_c1 = 4.9 K and T_c2 = 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 language	English
Pages (from-to)	2017-2020
Number of pages	4
Journal	Physics of the Solid State
Volume	40
Issue number	12
DOIs	https://doi.org/10.1134/1.1130654
State	Published - 1 Jan 1998
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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

abstract = "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.",

author = "D'yakonov, {V. P.} and Markovich, {V. I.} and Kovarskiǐ, {V. L.} and Markovich, {A. V.} and M. Borowiec and A. Endzheǐchak and G. Szymczak",

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AU - D'yakonov, V. P.

AU - Markovich, V. I.

AU - Kovarskiǐ, V. L.

AU - Markovich, A. V.

AU - Borowiec, M.

AU - Endzheǐchak, A.

AU - Szymczak, G.

PY - 1998/1/1

Y1 - 1998/1/1

N2 - 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.

AB - 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.

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JO - Physics of the Solid State

JF - Physics of the Solid State

IS - 12

ER -

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

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