Abstract
The field dependence of the magnetoelectric effect and longitudinal magnetostriction of Ga2−x FexO3 single crystals is studied in magnetic fields up to 200 kOe in the temperature range from 4.2 to 300 K. It is shown that the magnetoelectric effect in these materials is determined mainly by the toroidal moment T and is not related to magnetostriction, as was previously theorized. A new method for determining the toroidal moment by measuring the electric polarization in a strong magnetic field is proposed. The value of the toroidal moment of the unit cell in Ga1.15Fe0.85O3 is calculated: T=(T a ,0,0), where T a =24.155µ B Å per unit cell. Experimental data are analyzed using a theory of toroidal spin ordering, which gives good agreement with experiment.
Similar content being viewed by others
References
J. P. Remeika, J. Appl. Phys. Suppl. 31, 26 (1960).
D. L. White, Bull. Am. Phys. Soc. 5, 189 (1980).
C. H. Nowlin and R. V. Jones, J. Appl. Phys. 34, 1962 (1963).
A. Pinto, J. Appl. Phys. 37, 4372 (1966).
E. A. Wood, Acta Crystallogr. 13, 682 (1960).
S. C. Abraham, J. M. Reddy, and J. L. Bernstein, J. Chem. Phys. 42, 3957 (1965).
G. T. Rado, in Proceedings of the International Conference on Magnetism, Nottingham, 1964, Institute of Physics and Physical Society, London (1965), p. 361.
G. T. Rado, J. Appl. Phys. 37, 1403 (1966).
T. M. Perekalina, E. M. Smirnovskaya, I. S. Zheludev, V. A. Timofeeva, A. B. Bykov, Kristallografiya 32, 795 (1987) [Sov. Phys. Crystallogr. 32, 469 (1987)].
Yu. F. Popov, A. K. Zvezdin, G. P. Vorob’ev, and A. M. Kadomtseva, JETP Lett. 57, 69 (1993).
G. T. Rado, Int. J. Magn. 6, 121 (1974).
G. T. Rado, Phys. Rev. Lett. 13, 335 (1964).
M. F. Bertaut, G. Buisson, J. Chappert, and G. Bassi, C. R. Acad. Sci. 260, 3355 (1965).
A. Delapalme, J. Phys. Chem. Solids 28, 1451 (1967).
Ya. B. Zel’dovich, Zh. Éksp. Teor. Fiz. 33, 1531 (1957) [Sov. Phys. JETP 6, 1184 (1958)].
V. M. Dubovik and A. A. Cheshkov, Fiz. Elem. Chastits At. Yadra 5, 791 (1974) [Sov. J. Part. Nucl. 5, 318 (1975)].
H. Schmid, Int. J. Magn. 4, 337 (1973).
A. A. Gorbatsevich and Yu. F. Tugushev, Zh. Éksp. Teor. Fiz. 85, 1107 (1983) [Sov. Phys. JETP 58, 643 (1983)].
A. A. Gorbatsevich and Yu. V. Kopaev, Ferroelectrics 161, 321 (1994).
V. M. Dubovik and L. A. Tusunyan, Fiz. Elem. Chastits At. Yadra 14, 1193 (1983) [Sov. J. Part. Nucl. 14, 504 (1983)].
R. R. Birss, Symmetry and Magnetism, North-Holland, Amsterdam (1964), p. 245.
Author information
Authors and Affiliations
Additional information
Zh. Éksp. Teor. Fiz. 114, 263–272 (July 1998)
Deceased.
Rights and permissions
About this article
Cite this article
Popov, Y.F., Kadomtseva, A.M., Vorob’ev, G.P. et al. Magnetoelectric effect and toroidal ordering in Ga2−x FexO3 . J. Exp. Theor. Phys. 87, 146–151 (1998). https://doi.org/10.1134/1.558635
Received:
Issue Date:
DOI: https://doi.org/10.1134/1.558635