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 SM ISO690:2012PALISTRANT, Maria, URSU, Vasile, PALISTRANT, Serghei. Superconductivity on the background of the state of the spin density wave in anisotropic systems. In: IFMBE Proceedings: 3rd International Conference on Nanotechnologies and Biomedical Engineering, ICNBME 2015, Ed. 3, 23-26 septembrie 2015, Chişinău. Springer, 2016, Editia 3, Vol.55, pp. 47-50. ISBN 978-981287735-2. ISSN 16800737. DOI: https://doi.org/10.1007/978-981-287-736-9_11 |
| EXPORT metadate: Google Scholar Crossref CERIF DataCite Dublin Core |
 IFMBE Proceedings Editia 3, Vol.55, 2016 |
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Conferința "International Conference on Nanotechnologies and Biomedical Engineering" 3, Chişinău, Moldova, 23-26 septembrie 2015 | |||||||
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| DOI:https://doi.org/10.1007/978-981-287-736-9_11 | |||||||
| Pag. 47-50 | |||||||
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A theory of phase transitions in quasi-twodimensional systems is developed in the case of doping. We take into account the presence of “nesting” on the Fermi surface and the structure of the lattice. A self-consistent system of equations for the superconducting order parameters Δ, magnetic M and chemical potential μ is obtained. For Δ=0, M ≠ 0 we have the magnetic state of the spin density wave (SDW). With the change of the density of charge carriers x phase transition - commensurate - incommensurate SDW state occurs. Against the background of this state (for Δ≠ 0 and M ≠ 0) superconductivity may appear, which is accompanied by magnetism. Numerical solutions for the thermodynamic quantities in magnetic and mixed phase are given. |
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| Cuvinte-cheie Quasitwo-dimensional systems, spin density wave, superconductivity |
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