Flux pinning defects induced by electron irradiation in Y sub 1 Ba sub 2 Cu sub 3 O sub 7-. delta. single crystals

Conference · Mon Jun 01 00:00:00 EDT 1992

OSTI ID:5024985

Giapintzakis, J; Lee, W C; Rice, J P; Ginsberg, D M; Robertson, I M ^[1]; Kirk, M A; Wheeler, R ^[2]

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1. Illinois Univ., Urbana, IL (United States)
2. Argonne National Lab., IL (United States)

Single crystals of R{sub 1}Ba{sub 2}Cu{sub 3}O{sub 7-{delta}}, (R=Y, Eu and Gd), have been irradiated with 0.4--1.0 MeV electrons in directions near the c-axis. An incident threshold electron energy for producing flux pinning defects has been found. In-situ TEM studies found no visible defects induced by electron irradiation. This means that point defects or small clusters ({le} 20 {Angstrom}) are responsible for the extra pinning. A consistent interpretation of the data suggests that the most likely pinning defect is the displacement of a Cu atom from the CuO{sub 2} planes.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: USDOE; National Science Foundation (NSF); USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5024985
• Report Number(s): ANL/CP-76499; CONF-920402-40; ON: DE92016773; CNN: DMR89-20538; DMR88-09854; DMR90-17371
• Resource Relation: Conference: Material Research Society spring meeting, San Francisco, CA (United States), 27 Apr - 2 May 1992
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
PHYSICAL RADIATION EFFECTS
COPPER OXIDES
HIGH-TC SUPERCONDUCTORS
YTTRIUM OXIDES
ANNEALING
CRYSTAL DEFECTS
ELECTRONS
EUROPIUM OXIDES
GADOLINIUM OXIDES
IRRADIATION
MAGNETIC FLUX
MAGNETIC MOMENTS
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
CRYSTAL STRUCTURE
ELEMENTARY PARTICLES
EUROPIUM COMPOUNDS
FERMIONS
GADOLINIUM COMPOUNDS
HEAT TREATMENTS
LEPTONS
OXIDES
OXYGEN COMPOUNDS
RADIATION EFFECTS
RARE EARTH COMPOUNDS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
360206* - Ceramics
Cermets
& Refractories- Radiation Effects
360202 - Ceramics
Cermets
& Refractories- Structure & Phase Studies