Microwave surface resistance of HgBa{sub 2}CaCu{sub 2}O{sub 6+{delta}} thin films
- Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045-2151 (United States)
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
Microwave surface resistance (R{sub s}) has been measured on c-axis-oriented superconducting HgBa{sub 2}CaCu{sub 2}O{sub 6+{delta}} (Hg-1212) films. A cavity perturbation method was employed using a high-Q Nb cavity cooled at 4.2 K. For the best film, an R{sub s} as low as {approx}0.3 m{omega} was observed at 10 GHz up to {approx}120 K on Hg-1212 films that have smooth surface morphology and high critical current density near 2 MA/cm{sup 2} at 100 K and self-field. This result suggests that Hg-1212 films are very promising for microwave applications above 100 K. (c) 2000 American Institute of Physics.
- OSTI ID:
- 20215690
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 12 Vol. 76; ISSN APPLAB; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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