- Tytuł:
- Properties of Normal and Superconducting States of Differently Doped REBa$\text{}_{2}$Cu$\text{}_{3}$O$\text{}_{7-x}$
- Autorzy:
- Sułkowski, C.
- Powiązania:
- https://bibliotekanauki.pl/articles/1933589.pdf
- Data publikacji:
- 1995-08
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
74.72.-h
74.25.Fy - Opis:
- Temperature dependence of resitivity, ρ(T), thermopower, S$\text{}_{300}$, superconducting transition temperature, T$\text{}_{c}$, and lower critical field, Η$\text{}_{c1}$(0), of differently doped REBa$\text{}_{2}$Cu$\text{}_{3}$O$\text{}_{7-x}$ ceramics have been measured. The hole doping of the CuO$\text{}_{2}$ plane is determined by the T$\text{}_{c}$, the oxygen concentration and/or the value of the thermopower. The temperature dependence of the resistivity above 200 K and the values of the lower critical field H$\text{}_{c1}$(0) show clear dependence on the hole concentration. Below 200 K, in contrast to simple metals, the resitivity of all samples decreases faster than linearly with the decreasing temperature. Classical electron-phonon scattering mechanism is not appropriate to describe the ρ(T) curves of REBa$\text{}_{2}$Cu$\text{}_{3}$O$\text{}_{7-x}$ compounds. Some observed features of the ρ(T) dependence are predicted by mean field phase diagram for the CuO$\text{}_{2}$ plane.
- Źródło:
-
Acta Physica Polonica A; 1995, 88, 2; 375-380
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł