ATOMICALLY REGULATED LAYER-BY-LAYER GROWTH OF SRTIO3 ON A-AXIS ORIENTED YBA2CU3O7-DELTA THIN-FILMS

Authors
KOINUMA H FUJITO K TSUCHIYA R KAWASAKI M
Citation
H. Koinuma et al., ATOMICALLY REGULATED LAYER-BY-LAYER GROWTH OF SRTIO3 ON A-AXIS ORIENTED YBA2CU3O7-DELTA THIN-FILMS, Physica. C, Superconductivity, 235, 1994, pp. 731-732
Citations number
10
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
235
Year of publication
1994
Part
2
Pages
731 - 732
Database
ISI
SICI code
0921-4534(1994)235:<731:ARLGOS>2.0.ZU;2-D
Abstract
The intensity oscillation of reflection high energy electron diffracti on (RHEED) was observed during the pulsed laser deposition of ultra-th in SrTiO3 films on a-axis oriented YBa2Cu3O7-delta (YBCO) thin films. This enabled us to control digitally the overlayer thickness on an ato mic scale. In the same deposition chamber, we could fabricate high qua lity epitaxial YBCO thin films on SrTiO3 with Tc exceeding 80K and 90K for a-and c-axis oriented films, respectively. Reducing the particle density below 10(5)cm(-2) on the bottom YBCO films should be promising to construct Josephson tunnel junctions.