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The internal magnetic field in superconducting ferromagnets

Grigory I. Leviev·Menachem I. Tsindlekht·Edouard B. Sonin·Israel Felner
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Abstract

We have measured the nonlinear response to the ac magnetic field in the superconducting weak ferromagnet Ru-1222, at different regimes of sample cooling which provides unambiguous evidence of the interplay of the domain structure and the vorticity in the superconducting state. This is {\em direct} proof of coexistence of ferromagnetic and superconductive order parameters in high-$T_c$ ruthenocuprates.

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Grigory I. Leviev, Menachem I. Tsindlekht, Edouard B. Sonin, Israel Felner. 2003-11-11. The internal magnetic field in superconducting ferromagnets. https://doi.org/10.1103/physrevb.70.212503

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