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Induced point and correlated disorder pinning in untwinned YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} crystals

Technical Report ·
DOI:https://doi.org/10.2172/663577· OSTI ID:663577
;  [1]; ;  [1]; ;  [2];  [1]
  1. Argonne National Lab., IL (United States)
  2. Univ. of Illinois, Chicago, IL (United States). Dept. of Physics

The magnetic phase diagram of untwinned single crystals of YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} is studied via transport measurements. The authors show that the first order vortex melting line which terminates at a critical point in high magnetic fields is strongly dependent on point disorder induced by proton irradiation. In addition, they report on the effect of heavy ion irradiation induced columnar defects on vortex pinning.

Research Organization:
Argonne National Lab., IL (United States)
Sponsoring Organization:
USDOE Office of Energy Research, Washington, DC (United States); National Science Foundation, Washington, DC (United States)
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
663577
Report Number(s):
ANL/MSD/CP--97071; CONF-981034--; ON: DE98058954; CNN: Contract DMR91-2000; Contract NSF-DMR96-24047(LMP)
Country of Publication:
United States
Language:
English