Low-Temperature Structural Phase Transition in Monoclinic RbDy(WO_{4})_{2} Crystal

• Authors: M. Borowiec , V. Dyakonov , V. Kamenev , A. Nabiałek , A. Prokhorov , H. Szymczak , M. Załęski
• Languages of publication: EN

Abstracts

EN

The ESR spectrum of Dy^{3+} ion in the low-symmetry RbDy(WO_{4})_{2} crystal has been studied in the temperature region of T=4.2 ÷ 30K. The ESR linewidth was found to increase from 130 mT up to the maximum value of 190 mT at T=9K and then to decrease down to 150 mT at 4.2K. The components of the g-tensor change considerably without change of their spatial orientation in the temperature range from 12K to 7 K: g_{z}=2.5, g_{x}≈0, g_{y}=1.41 at T>12 K; g_{z}=1.53, g_{x}≈0, g_{y}=1.2 at T<7K. The observed λ-shaped behaviour of absorption linewidth and the decrease in the g-factor are assumed to be due to the low-temperature structural phase transition (T_{SPT}≈9 K). The width of the transition area is of about 5K. It is suggested that the symmetry of high- and low-temperature phases is identical.

Keywords

EN

76.30.-v; 75.20.-g

Discipline

• 75.20.-g: Diamagnetism, paramagnetism, and superparamagnetism
• 76.30.-v: Electron paramagnetic resonance and relaxation(see also 33.35.+r Electron resonance and relaxation in atomic and molecular physics; 87.80.Lg Magnetic and paramagnetic resonance in biological physics)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1998
• Volume: 94
• Issue: 1
• Pages: 71-77

Dates

published

1998-07

received

1998-04-29

(unknown)

1998-07-09

Contributors

author

M. Borowiec

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland

author

V. Dyakonov

• A.A. Galkin Donetsk Physico-Technical Institute, Ukrainian Academy of Sciences, 340114 Donetsk, Ukraine

author

V. Kamenev

• A.A. Galkin Donetsk Physico-Technical Institute, Ukrainian Academy of Sciences, 340114 Donetsk, Ukraine

author

A. Nabiałek

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland

author

A. Prokhorov

• A.A. Galkin Donetsk Physico-Technical Institute, Ukrainian Academy of Sciences, 340114 Donetsk, Ukraine

author

H. Szymczak

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland

author

M. Załęski

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland

Identifiers

DOI

10.12693/APhysPolA.94.71