The critical magnetic field of a superco
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D. Borycki; Jan MaΔkowiak
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Article
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2010
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Elsevier Science
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English
β 207 KB
The Hamiltonian of a superconductor with 4-fermion attraction is modified by adding a long-range magnetic interaction V between conduction fermions and localized spin 1/2 magnetic impurities. V has the form of a reduced s-d interaction. Using an asymptotic form of the system's free energy f(H,b) and