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Theory of unconventional superconductivity in strongly correlated systems : real space pairing and statistically consistent mean-field theory : in perspective

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Theory of unconventional superconductivity in strongly correlated systems : real space pairing and statistically consistent mean-field theory : in perspective

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dc.contributor.author Spałek, Józef [SAP11015561] pl
dc.date.accessioned 2016-05-10T13:46:01Z
dc.date.available 2016-05-10T13:46:01Z
dc.date.issued 2012 pl
dc.identifier.issn 0587-4246 pl
dc.identifier.uri http://ruj.uj.edu.pl/xmlui/handle/item/25361
dc.language eng pl
dc.rights Dodaję tylko opis bibliograficzny *
dc.rights.uri *
dc.title Theory of unconventional superconductivity in strongly correlated systems : real space pairing and statistically consistent mean-field theory : in perspective pl
dc.type JournalArticle pl
dc.description.physical 764-784 pl
dc.abstract.en In this brief overview we discuss the principal features of real space pairing as expressed via corresponding low-energy (t J or periodic Anderson-Kondo) effective Hamiltonian, as well as consider concrete properties of those unconventional superconductors. We also rise the basic question of statistical consistency within the so-called renormalized mean-field theory. In particular, we provide the phase diagrams encompassing the stable magnetic and superconducting states. We interpret real space pairing as correlated motion of fermion pair coupled by short-range exchange interaction of magnitude J comparable to the particle renormalized band energy ≈ tx, where x is the carrier number per site. We also discuss briefly the difference between the real-space and the paramagnon-mediated sources of superconductivity. The paper concentrates both on recent novel results obtained in our research group, as well as puts the theoretical concepts in a conceptual as well as historical perspective. No slave-bosons are required to formulate the present approach. pl
dc.description.volume 121 pl
dc.description.number 4 pl
dc.description.publication 1,3 pl
dc.identifier.doi 10.12693/APhysPolA.121.764 pl
dc.identifier.eissn 1898-794X pl
dc.title.journal Acta Physica Polonica. A pl
dc.title.volume Proceedings of the XV-th National School "Hundred Years of Superconductivity", Kazimierz Dolny, October 9-13, 2011 and Proceedings of the 9th National Symposium of Synchrotron Radiation Users, Warsaw, September 26-27, 2011 and Selected papers presented at the Tenth Symposium of Magnetic Measurements, Warsaw, September 17-19, 2011 pl
dc.language.container eng pl
dc.affiliation Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego pl
dc.subtype Article pl
dc.rights.original OTHER; otwarte czasopismo; ostateczna wersja wydawcy; w momencie opublikowania; 0 pl
.pointsMNiSW [2012 A]: 15


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