ISSN:
1432-0630
Keywords:
PACS: 61.80.Ba; 74.76.Bz; 81.15.Fg
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
3 (100) single crystal substrates have been investigated. Poorly absorbed KrF irradiation leads to localized, deep, and unstable damage on the crystal surfaces. By contrast ArF has been found to induce well-localized roughness and microcracks on LaAlO3(100) surfaces at fluences between 0.2 and 1.8 J/cm2. The material emission threshold was estimated at around 0.5 J/cm2 and cracks appeared above 1.4 J/cm2. The substrate surface state determines YBa2Cu3O7-x film growth, leading to morphological changes that have been related to a decrease in adatom mobility on the substrate. The most striking feature is the drastic reduction in YBa2Cu3O7-x outgrowth density inside the irradiated areas. Irradiation has little effect on film crystalline properties. The main effect on the electrical properties can be restricted to a decrease of critical current density up to a factor of 104, but such an important decrease is only observed in the most intensively irradiated substrates.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s003390050604
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