Normal and Anomalous Pseudogap of Superconducting Y0.9−x Pr x Ca0.1Ba2[Cu1−y Zn y ]3O7−δ
Electrical resistivity measurements on the superconducting oxides of the compositions Y0.9−x Pr x Ca0.1Ba2[Cu1−y Zn y ]3O7−δ (0≤x≤0.20 and 0.0≤y≤0.10) sintered in oxygen atmosphere were carried out to obtain the normal and anomalous pseudogaps in underdoped and overdoped samples. It is observed that pseudogap temperature T * decreases with increasing doping level p in the underdoped case. For the overdoped sample with y=0.06, T * shows no p dependence.
KeywordsSuperconducting oxides Pseudogap Resistivity
PACS74.62Bf 74.62Dh 74.72Bk
- 8.Narlikar, A.V., Rao, C.V., Agarwal, S.K.: In: Narlikar, A.V. (ed.) High Temperature Superconductor, vol. 1, p. 341. Nova Science, New York (1989) Google Scholar