Doping-dependent superconducting properties of two-dimensional metals with different types of interparticle coupling (Review Article)

• Veröffentlicht in: Физика низких температур
• Datum: 2004
• Hauptverfasser: Loktev, V.M., Turkowski, V.M.
• Format: Artikel
• Sprache: English
• Veröffentlicht: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2004
• Schlagworte: Обзоp
• Online Zugang: https://nasplib.isofts.kiev.ua/handle/123456789/119468
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Zitieren: Doping-dependent superconducting properties of two-dimensional metals with different types of interparticle coupling (Review Article) / V.M. Loktev, V.M. Turkowski // Физика низких температур. — 2004. — Т. 30, № 3. — С. 247-260. — Бібліогр.: 69 назв. — англ.

The superconducting properties of a two-dimensional metallic system with arbitrary carrier density and both local and various types of the indirect boson-exchange attractive interaction in the cases of s- and d-wave pairing are analyzed and reviewed at T = 0. In particular, the possibility of a crossover from the Bose—Einstein condensation regime to Bardeen—Cooper—Schrieffer-like superconductivity with growing carrier density and changing coupling in the case of different pairing channels is discussed. Gaussian fluctuations of the order parameter are taken into account, and the carrier density dependence of the gap magnitude is studied. The role of the form of the interparticle attractive interaction in the physical behavior of the system is also considered.