- Tytuł:
- Universal Critical Quantum Properties of Cuprate Superconductors
- Autorzy:
- Schneider, T.
- Powiązania:
- https://bibliotekanauki.pl/articles/1953179.pdf
- Data publikacji:
- 1997-01
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
74.62.-c
74.72.-h
74.62.Dh
74.25.-q - Opis:
- Using the scaling theory of quantum critical phenomena we explore the occurrence of universal critical behavior at the insulator-to-superconductor and superconductor-to-normal state transitions at zero temperature. Experimentally, these phase transitions are driven by doping and correspond to critical end points of the phase transition line in the temperature-hole concentration plane. Provided that the order parameter is a complex scalar in two dimensions, and that the London relation between superfluid number density and magnetic penetration depth holds, the scaling theory predicts universal behavior close to the insulator-to-superconductor transition. In particular, transition temperature and zero temperature penetration depth are universally related and the sheet resistance adopts a universal value. These predictions agree remarkably well with available experimental data and provide useful constraints for a microscopic theory.
- Źródło:
-
Acta Physica Polonica A; 1997, 91, 1; 203-212
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł