Observation of a disordered vortex state in Bi[sub 2]Sr[sub 2]CaCu[sub 2]O[sub 8+[ital x]] single crystals containing columnar defects
- Physikalisches Institut, Universitaet Erlangen-Nuernberg, Erwin-Rommel-Strasse 1, D-8520 Erlangen (Germany)
- Institute of Solid State Physics,Chernogolovka, Moscow District, 142432 (Russian Federation)
We report on the visualization of vortex patterns by means of the high-resolution Bitter-decoration technique in Bi[sub 2]Sr[sub 2]CaCu[sub 2]O[sub 8+[ital x]] single crystals containing columnar defects generated via high-energy heavy-ion irradiation. By irradiating only a part of each sample, a simultaneous decoration of irradiated and nonirradiated parts was possible. The columnar defects lead to a complete destruction of translational order, whereas the vortex lattice in the nonirradiated parts exhibits hexagonal ordering. Analyses of the decoration images yield translational correlation lengths of 1.5 to 2 flux spacings in the nonirradiated areas and about 0.5 flux spacings in the irradiated areas.
- OSTI ID:
- 6424855
- Journal Information:
- Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 48:2; ISSN PRBMDO; ISSN 0163-1829
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BEAMS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
CHARGED PARTICLES
COLLISIONS
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
CRYSTALS
CUPRATES
ENERGY RANGE
HIGH-TC SUPERCONDUCTORS
ION BEAMS
ION COLLISIONS
IONS
IRRADIATION
MEV RANGE
MEV RANGE 100-1000
MONOCRYSTALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
VORTICES
XENON IONS