Abstract
The interaction of an Abrikosov vertex with a ferromagnetic substrate is taken into account in the model of a layered high-temperature superconductor (HTSC). The magnetization reversal loops are calculated by the Monte Carlo method for various values of the magnetic moment of the substrate and at various temperatures. The nonlinearity of the interaction of the superconductor with the ferromagnet is demonstrated. The magnetization of HTSC films on magnetic and nonmagnetic substrates is measured. It is found that the ferromagnetism of the substrate strongly affects the shape and magnitude of the magnetization of the HTSC-substrate composite. Experimental data are found to correlate with the results of calculations.
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Original Russian Text © V.A. Kashurnikov, A.N. Maksimova, I.A. Rudnev, A.P. Sotnikova, 2013, published in Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2013, Vol. 143, No. 3, pp. 546–556.
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Kashurnikov, V.A., Maksimova, A.N., Rudnev, I.A. et al. Nonlinear interaction of a ferromagnet with a high-temperature superconductor. J. Exp. Theor. Phys. 116, 476–485 (2013). https://doi.org/10.1134/S1063776113030102
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DOI: https://doi.org/10.1134/S1063776113030102