Published December 1992 | Version v1
Report Restricted

Submillimeter and microwave residual losses in epitaxial films of Y-Ba-Cu-O and Tl-Ca-Ba-Cu-O

Creators

  • 1. Lawrence Livermore National Lab., CA (United States)
  • 2. Stanford Univ., CA (United States). Dept. of Applied Physics
  • 3. Conductus, Inc., Sunnyvale, CA (United States)
  • 4. Bell Communications Research, Inc., Red Bank, NJ (United States)
  • 5. Sandia National Labs., Albuquerque, NM (United States)
  • 6. IBM Research Div., San Jose, CA (United States). Almaden Research Center
  • 7. Superconductor Technologies, Inc., Santa Barbara, CA (United States)

Description

We have used a novel bolometric technique and a resonant technique to obtain accurate submillimeter and microwave residual loss data for epitaxial thin films of YBa2Cu3O7, Tl2Ca2Ba2Cu3O10 and Tl2CaBa2Cu2O8. For all films we obtain good agreement between the submillimeter and microwave data, with the residual losses in both the Y-Ba-Cu-O and Tl-Ca-Ba-Cu-O films scaling approximately as frequency squared below ∼ 1 THz. We are able to fit the losses in the Y-Ba-Cu-O films to a two fluid and a weakly coupled grain model for the a-b planeconductivity, in good agreement with results from a Kramers-Kronig analysis of the loss data

Availability note (English)

MF available from INIS under the Report Number; OSTI as DE93010430; NTIS; INIS; US Govt. Printing Office Dep.

Files

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Additional details

Publishing Information

Imprint Pagination
2 p.
Report number
LBL--33557

Conference

Title
17. annual Society of Photo-Optical Instrumentation Engineers (SPIE) international conference on infrared and millimeter wave sources.
Dates
14-18 Dec 1992.
Place
Pasadena, CA (United States).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
24060836
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BARIUM OXIDES; CALCIUM OXIDES; COPPER OXIDES; HIGH-TC SUPERCONDUCTORS; KRAMERS-KRONIG CORRELATION; LOSSES; MICROWAVE RADIATION; THALLIUM OXIDES; YTTRIUM OXIDES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CALCIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; CORRELATIONS; ELECTROMAGNETIC RADIATION; OXIDES; OXYGEN COMPOUNDS; RADIATIONS; SUPERCONDUCTORS; THALLIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS

Optional Information

Contract/Grant/Project number
Contract AC03-76SF00098; Contract F49620-88-C-004; Contract F49620-88-C-001
Funding organization
USDOE, Washington, DC (United States); Department of Defense, Washington, DC (United States); Center for Research in Superconductivity and Superconductivity Electronics (United States).
Secondary number(s)
CONF-921217--6.