Abstract—It is shown that the method of random exchange-interaction fields is suitable for identifying the temperature interval where the short-range magnetic order is still present while the long-range order is already absent. On this interval, the state of the magnetic system is a set of ferromagnetic clusters whose magnetic moment can vary with time and ensure magnetic viscosity. In the paper, the Curie point and paramagnetic Curie point are determined for a two-sublattice ferrimagnetic with the distribution of iron ions corresponding to titanomagnetite.
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REFERENCES
- 1
Belokon, V. and Semkin, S., Random field method in the theory of ferromagnetism of binary alloys, J. Exp. Theor. Phys., 1993, vol. 104, no. 5, pp. 3784–3791.
- 2
Belokon, V.I., Kochegura, V.V., and Sholpo, L.E., Metody paleomagnitnykh issledovanii gornykh porod (Methods for Paleomagnetic Studies of Rocks), Leningrad: Nedra, 1973.
- 3
Belokon, V.I., Nefedev, K.V., and Dyachenko, O.I., Phase transitions in the binary alloys with annealed magnetic impurities, Appl. Mech. Mater., 2013, vol. 328, pp. 789–793.
- 4
Belokon, V.I., Dyachenko, O.I., and Kapitan, V.Yu., On the possible application of the method of random exchange interaction fields for studying the magnetic properties of the rocks, Izv. Phys. Solid Earth, 2015, vol. 51, no. 5, pp. 622–629.
- 5
Belokon, V.I., Kirichenko, P.V., and Dyachenko, O.I., Self-reversal of magnetization in titanomagnetite: Effective field theory, Izv. Phys. Solid Earth, 2018, vol. 54, no. 1, pp. 121–127.
- 6
Butler, R.F., Paleomagnetism: Magnetic Domains to Geologic Terranes, Tucson, USA: Blackwell Science, 1991.
- 7
Kittel, C., Introduction to Solid State Physics, 4th ed., New York: Wiley, 1971.
- 8
Krasa, D., Shcherbakov, V., Kunzmann, T., and Petersen, N., Self-reversal of remanent magnetization in basalts due to partially oxidized titanomagnetites, Geophys. J. Int., 2005, vol. 162, pp. 115–136.
- 9
Trukhin, V.I. and Bezaeva, N.S., Self-reversal of the magnetization of natural and synthesized ferrimagnets, Phys.-Usp., 2006, vol.49, no. 5, pp. 489–516.
- 10
Vonsovskii, S.V., Magnetizm (Magnetism), Moscow: Nauka, 1971.
- 11
Ziman, J.M., Models of Disorder: The Theoretical Physics of Homogeneously Disordered Systems, Cambridge: Cambridge Univ. Press, 1979.
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The work was conducted in partial fulfillment of the state contract with the Ministry of Science and Higher Education of the Russian Federation no. 0657-2020-0005.
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Translated by M. Nazarenko
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Belokon, V.I., Dyachenko, O.I. Long- and Short-Range Magnetic Order in Titanomagnetite. Izv., Phys. Solid Earth 56, 888–891 (2020). https://doi.org/10.1134/S1069351320060014
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Keywords:
- titanomagnetite
- Curie point
- long-range magnetic order
- short-range magnetic order
- rock magnetism