Arresting vortex motion in YBaCuO crystals with splay in columnar defects

Technical Report · Fri Dec 31 23:00:00 EST 1993

DOI:https://doi.org/10.2172/204571· OSTI ID:204571

Civale, L; Krusin-Elbaum, L; Marwick, A D; Holtzberg, F; Feild, C ^[1]; Thompson, J R ^[2]; Wheeler, R; Kirk, M A ^[3]; Sun, Y R ^[4]

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1. IBM Research Div., Yorktown Heights, NY (United States)
2. Oak Ridge National Lab., TN (United States)
3. Argonne National Lab., IL (United States)
4. Tennessee Univ., Knoxville, TN (United States). Dept. of Physics

Results show that the splay in the orientation of the columnar defects (produced by heavy ion irradiation) has a significant effect on dynamics of the vortices. 0.58 GeV {sup 116}Sn{sup 30+} and 1.08 GeV {sup 197}Au{sup 23+} ions were used to irradiated YBaCuO single crystals. At high temperatures, the larger splay of the Sn tracks (10{degree}) results in a current density one order of magnitude larger and a creep rate on order of magnitude smaller than the Au irradiation (1{degree}). This indicates that a considerable further improvement of the current carrying capacity of high temperature superconductors can still be obtained.

• Research Organization: Argonne National Lab., IL (United States); Oak Ridge National Lab., TN (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400; W-31109-ENG-38
• OSTI ID: 204571
• Report Number(s): ANL/MSD/PP--81921; ON: DE96007622; CNN: Contract DMR 91-20000
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
COPPER OXIDES
CURRENT DENSITY
DAMAGE
GEV RANGE
GOLD IONS
HIGH-TC SUPERCONDUCTORS
ION BEAMS
MAGNETIC FLUX
PHYSICAL RADIATION EFFECTS
TIN IONS
YTTRIUM OXIDES