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Titolo:
Microwave and structural properties of YBa2Cu3O7-delta films on R-cut sapphire buffered with post-annealed CeO2 layer
Autore:
Yang, WI; Lee, JH; Jang, JM; Ryu, JS; Hur, J; Lee, SY;
Indirizzi:
Konkuk Univ, Ctr Adv Mat & Devices, Seoul 143701, South Korea Konkuk UnivSeoul South Korea 143701 Devices, Seoul 143701, South Korea Konkuk Univ, Dept Elect Engn, Seoul 143701, South Korea Konkuk Univ Seoul South Korea 143701 ect Engn, Seoul 143701, South Korea
Titolo Testata:
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
fascicolo: 1, volume: 11, anno: 2001,
parte:, 3
pagine: 3419 - 3422
SICI:
1051-8223(200103)11:1<3419:MASPOY>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
SUPERCONDUCTOR; RESONATORS;
Keywords:
YBa2Cu3O7-delta film; microwave properties; CeO2 buffer layer; structures;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
8
Recensione:
Indirizzi per estratti:
Indirizzo: Yang, WI Konkuk Univ, Ctr Adv Mat & Devices, Seoul 143701, South Korea Konkuk Univ Seoul South Korea 143701 Seoul 143701, South Korea
Citazione:
W.I. Yang et al., "Microwave and structural properties of YBa2Cu3O7-delta films on R-cut sapphire buffered with post-annealed CeO2 layer", IEEE APPL S, 11(1), 2001, pp. 3419-3422

Abstract

Effects of the post-annealing temperature of CeO2 buffer layer on the microwave and structural properties of YBCO films an CeO2-buffered sapphire (CbS) were investigated using YBCO films grown on CeO2 buffer layer post-annealed at temperatures of 950 - 1100 degreesC. YBCO films on post-annealed CbSappeared to have better properties than those on as-grown CbS with regard to the morphological, structural and microwave properties when the YBCO films were prepared on CeO2 buffer layer post-annealed at temperatures of 1000- 1050 degreesC. The TE011 mode Q of a rutile-loaded cavity resonator withYBCO films on CbS post-annealed at 1000 - 1050 degreesC showed the unloaded Q as high as 1.8 x 10(5) at 77 K at 8.6 GHz, a value more than 2 times the corresponding value with the YBCO films replaced by those on as-grown CbS. Also, the decrease in the unloaded Q of a microstrip resonator made of the YBCO Nm on CbS post-annealed at 1000 degreesC appeared less than 3 % at 60 K for input power increase of 10 dBm, while the corresponding value was about 24 % for a microstrip resonator prepared from the YBCO film on as-grown CbS.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/09/20 alle ore 05:52:14