Characteristic Features of the Modulated Phases in (MgGeF_6)·6H_2O Crystals

• Authors: Yu. Pankivskyi , S. Sveleba , R. Hrabanski
• Languages of publication: EN

Abstracts

EN

The temperature dependences of the optical birefringenceδ(Δ n_c) in (MgGeF_6)·6H_2O crystal have been investigated. Specific properties observed in experiment such as global hysteresis, kinetic effect, thermooptic memory effect, localization of the incommensurability wave vector on the commensurate values of higher order, sensibility to the external mechanical stress confirm the existence of the incommensurate phase in current crystals.

Keywords

EN

64.70.-p

Discipline

• 64.70.-p: Specific phase transitions

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2004
• Volume: 106
• Issue: 4
• Pages: 467-474

Dates

published

2004-10

received

2004-03-04

(unknown)

2004-06-16

Contributors

author

Yu. Pankivskyi

• Department of Ecology, Ukrainian University of Forestry, O. Kobylyanskoyi st. 1, Lviv, 79005, Ukraine

author

S. Sveleba

• Department of Nonlinear Optics, Lviv National Ivan Franko University, Tarnavskogo st. 107, Lviv, 79000, Ukraine

author

R. Hrabanski

• Institute of Physics, Technical University of Czestochowa, al. Armii Krajowej 19, 42-200 Częstochowa, Poland

References

• 1. R. Hrabanski, Ferroelectrics, 141, 327, 1993
• 2. R. Hrabanski, in: 24th Ampere Congress; Magnetic Resonance and Related Phenomena, Poznan 1988, p. 895
• 3. P.G. Skrylnik, A.M. Ziatdinov, J. Phys. Condens. Matter, 14, 11671, 2002
• 4. S. Sveleba, V. Zhmurko, V. Kapustianik, I. Polovinko, Z. Trybula, Phys. Status Solidi A, 133, 481, 1992
• 5. K. Dequchi, Y. Okada, H. Fukunaga, E. Nakamena, J. Phys. Soc. Jpn., 56, 208, 1987
• 6. I.I. Polovinko, S.A. Sveleba, V.B. Kapustianik, V.S. Zhmurko, Phys. Status Solidi A, 135, 143, 1993
• 7. O.G. Vlokh, V.S. Zhmurko, I.I. Polovinko, S.A. Sveleba, Kristallografiya, 36, 1315, 1991
• 8. S.K. Gupta, V.A. Kirikov, V.V. Gladkii, B. Brezina, Phys. Status Solidi A, 115, 569, 1989
• 9. R. Hrabanski, V. Kapustianik, V. Kardash, S. Sveleba, Phys. Status Solidi A, 142, 509, 1994

Identifiers

DOI

10.12693/APhysPolA.106.467