Rf surface resistance of a magnetically aligned sintered pellet of YBa sub 2 Cu sub 3 O sub 7

Rf properties of polycrystalline ceramic material are compared with crystalline YBa sub 2 Cu sub 3 O sub 7 as a function of field strength. Results are discussed in terms of the crystalline anisotropy, second phases, impurities, and cracks at grain boundaries. While the low-field rf behavior is stro...

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Veröffentlicht in:	Journal of applied physics 1990-02, Vol.67 (4), p.2003-2006
Hauptverfasser:	Padamsee, H, Kirchgessner, J, Moffat, D
Format:	Artikel
Sprache:	eng
Schlagworte:	360204 - Ceramics, Cermets, & Refractories- Physical Properties ALKALINE EARTH METAL COMPOUNDS BARIUM COMPOUNDS BARIUM OXIDES CHALCOGENIDES COHERENT SCATTERING COPPER COMPOUNDS COPPER OXIDES CRYSTALS DIFFRACTION ELECTRIC CONDUCTIVITY ELECTRICAL PROPERTIES ELECTROMAGNETIC RADIATION ELECTRON MICROSCOPY FREQUENCY RANGE GHZ RANGE GHZ RANGE 01-100 MATERIALS SCIENCE MICROSCOPY OPTICAL MICROSCOPY ORIENTATION OXIDES OXYGEN COMPOUNDS PHYSICAL PROPERTIES POLYCRYSTALS RADIATIONS RADIOWAVE RADIATION SCATTERING SUPERCONDUCTORS SURFACES TRANSITION ELEMENT COMPOUNDS TRANSMISSION ELECTRON MICROSCOPY ULTRALOW TEMPERATURE X-RAY DIFFRACTION YTTRIUM COMPOUNDS YTTRIUM OXIDES
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Beschreibung
Zusammenfassung:	Rf properties of polycrystalline ceramic material are compared with crystalline YBa sub 2 Cu sub 3 O sub 7 as a function of field strength. Results are discussed in terms of the crystalline anisotropy, second phases, impurities, and cracks at grain boundaries. While the low-field rf behavior is strongly improved by orientation, the high-field behavior is dominated by the poor current-carrying capacity across weak links.
ISSN:	0021-8979 1089-7550
DOI:	10.1063/1.345581