Model of Temperature Dependence of Spontaneous Polarization of Thiourea Monocrystal in Phase I

• Authors: I. Śliwa , W. Wanarski
• Languages of publication: EN

Abstracts

EN

In this paper we present a model of spontaneous polarization appearing in the crystal of thiourea in phase I, constructed on the basis of the molecular field theory, with the use of the Boltzmann statistics. The model employs the potential energy of interaction between two nonpunctual molecular electric dipoles performing reorientations within the constraints specified by the experimentally determined structural data. The temperature dependences of the spontaneous polarization for different values of the hydrostatic pressure and for different γ-ray doses were obtained. A comparison between theoretical and experimental results permitted calculation of the parameters of the theory presented.

Keywords

EN

77.80.Bh; 77.80.-e

Discipline

• 77.80.-e: Ferroelectricity and antiferroelectricity

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 122
• Issue: 1
• Pages: 184-189

Dates

published

2012-07

received

2011-11-15

(unknown)

2012-02-08

Contributors

author

I. Śliwa

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, PL 60-179 Poznań, Poland

author

W. Wanarski

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, PL 60-179 Poznań, Poland

References

• 1. I. Śliwa, W. Wanarski, Acta Phys. Pol. A 120, 516 (2011)
• 2. H. Futama, J. Phys. Soc. Jpn. 17, 434 (1962)
• 3. G.J. Goldsmith, J.G. White, J. Chem. Phys. 31, 1175 (1959)
• 4. M.M. Elcombe, J.C. Taylor, Acta Crystallogr. A 24, 410 (1968)
• 5. J. Klimowski, W. Wanarski, D. Ożgo, Phys. Status Solidi A 34, 697 (1976)
• 6. W. Wanarski, Acta Phys. Pol. A 56, 197 (1979)
• 7. A. Pawłowski, The Physics of Dielectrics and Radiospectroscopy, Vol. IX/2, PTPN, Warszawa 1977, p. 223
• 8. A.I. Kitaygorodsky, Molecular Crystals, PWN, Warszawa 1976
• 9. C. Calvo, J. Chem. Phys. 33, 1721 (1960)
• 10. S. Pal, A.K. Manna, S.K. Pati, J. Chem. Phys. 129, 204301 (2008)

Identifiers

DOI

10.12693/APhysPolA.122.184