c-axis charge dynamics in oxygen deficient YBa2Cu3O7−δ films
作者： X.G Qiu , H Koinuma , M Iwasaki , T Itoh , Sarin Kumar A.K
DOI: 10.1016/S0921-4534(01)00693-1
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摘要: Abstract In-plane c -axis aligned (1 1 0) YBa 2 Cu 3 O 7− δ thin films on SrTiO substrates have been successfully fabricated by pulsed laser deposition, using the self-template method. The oxygen deficiency of is controlled in situ adjusting annealing partial pressure P . Electronic transport and far-infrared reflectivity measurements conducted these films. It revealed that normal state carriers are confined CuO planes their across incoherent. A pseudogap develops at temperatures well above T it persists superconducting state. Upon decreasing temperature below critical transition , coherence built up for carrier along a edge associated with Josephson plasma observed.
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