10-GHZ CYLINDRICAL CAVITY RESONATOR FOR CHARACTERIZATION OF SURFACE-RESISTANCE OF HIGH-T-C SUPERCONDUCTING BULK AND THIN-FILMS

Authors
KUMAR MJ KATARIA ND SRIVASTAVA GP
Citation
Mj. Kumar et al., 10-GHZ CYLINDRICAL CAVITY RESONATOR FOR CHARACTERIZATION OF SURFACE-RESISTANCE OF HIGH-T-C SUPERCONDUCTING BULK AND THIN-FILMS, IEEE transactions on magnetics, 30(6), 1994, pp. 4605-4607
Citations number
11
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE transactions on magnetics → ACNP
ISSN journal
00189464
Volume
30
Issue
6
Year of publication
1994
Part
1
Pages
4605 - 4607
Database
ISI
SICI code
0018-9464(1994)30:6<4605:1CCRFC>2.0.ZU;2-4
Abstract
An accurate and simple measurement system incorporating a 10 GHz TE(01 1) cylindrical cavity resonator has been established which is capable of determining the microwave surface resistance of superconducting fil m and bulk materials of dimension independent of cavity diameter. The advantage of this technique over the conventional end plate substituti on method are discussed. The performance of the cavity as a function o f temperature and surface resistance measurements on YBCO thin films o f 1.0 cm x 0.5 cm dimension as well as 0.5 cm diameter hulk samples ar e presented. The lowest surface resistance measured using this system is 2.5 mohms at 77K for a thin YBCO film deposited on LaAl2O3 substrat e.