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MODIFICATION OF STRUCTURAL AND TRANSPORT-PROPERTIES IN EPITAXIAL YBA2CU3OX FILMS BY PULSED-LASER IRRADIATIONстатья
Информация о цитировании статьи получена из
Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 29 мая 2015 г.
- Авторы: CHECHENIN NG, CHERNYSH AV, KORNEEV VV, MONAKHOV EV, SELEZNEV BV
- Журнал: Journal de Physique IV
- Том: 3
- Номер: 12
- Год издания: 1993
- Издательство: Les Editions de physique
- Местоположение издательства: Les Ulis, France, France
- Первая страница: 2173
- Последняя страница: 2188
- Аннотация: Pulsed (similar to 20 ns) laser effects in epitaxial YBa2Cu3Ox/SrTiO3 thin films were investigated, using RBS/channeling for compositional and structural characterization and 4-point technique for electrical measurements. It was found that laser pulse melting and following quenching lead to a transition from a single-crystalline to a polycrystalline state in films. The formation of grain boundaries causes a room temperature electrical resistivity increase by a factor 10-40, depending on the initial film properties and on the irradiation conditions. Unlike corpuscular (ions, neutrons) irradiation, the laser pulse induced structural damage did not lead to the disappearance of HTS, which persisted up to the highest laser fluences used. It was found, that a thermal model can consistently describe the fluence dependence of disorder, depth of surface relief and helps, with a simple two-layer model, in understanding of fluence dependence of room temperature resistivity in a relatively thick film.
- Добавил в систему: Чеченин Николай Гаврилович