Superconductivity on the background of the state of the spin density wave in anisotropic systems

Palistrant Maria; Ursu Vitalie; Palistrant Serghei

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SM ISO690:2012

PALISTRANT, Maria, URSU, Vitalie, PALISTRANT, Serghei. Superconductivity on the background of the state of the spin density wave in anisotropic systems. In: Nanotechnologies and Biomedical Engineering, Ed. 3, 23-26 septembrie 2015, Chișinău. Springer, 2015, Editia 3, p. 52.

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Nanotechnologies and Biomedical Engineering
Editia 3, 2015

Conferința "International Conference on Nanotechnologies and Biomedical Engineering"
3, Chișinău, Moldova, 23-26 septembrie 2015

Superconductivity on the background of the state of the spin density wave in anisotropic systems

Pag. 52-52

Palistrant Maria, Ursu Vitalie, Palistrant Serghei

Institute of Applied Physics, Academy of Sciences of Moldova

Disponibil în IBN: 8 aprilie 2019

Rezumat

A theory of phase transitions in quasi-two-dimensional 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 , magnetic M and chemical potential is obtained. For =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 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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