ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
In situ coevaporated YBa2Cu3O7−δ thin films have a slightly depressed transition temperature Tc, though they have excellent radio-frequency surface resistance characteristics. These films consistently have less orthorhombic strain than laser ablated or post-annealed films. Low temperature (320–420 °C) post-annealing of in situ coevaporated films in 100 kPa of O2 raised Tc to values as high as 91.5 K with some increase in the orthorhombic strain. All measured thin films show less variation of Tc with orthorhombic strain than does bulk material.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.112922
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