PROPERTIES OF EPITAXIAL YBa2Cu3Oy THIN FILMS ON SAPPHIRE WITH PrBa2Cu3Oy BUFFER LAYERS

被引:2
作者
Boffa, V. [1 ]
Paterno, G. [1 ]
Romeo, C. [1 ]
Rossi, V. [1 ]
Penna, M. [1 ]
Di Gioacchino, D. [1 ]
Gambardella, U. [1 ]
Barbanera, S. [1 ]
Murlas, F. [1 ]
机构
[1] ENEA CRE Frascati, Via E Fermi 27, I-00044 Rome, Italy
关键词
D O I
10.1109/77.233885
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We have grown YBa2Cu3Oy epitaxial thin films on a PrBa2Cu3Oy layer deposited on a sapphire substrate. The laser ablation technique with an XeCl excimer laser was used for both depositions. The films were deposited in situ by means of a rotating multi-target system carrying the two targets. The substrate holder was heated by a CO2 laser beam. The as deposited films show a zero resistance critical temperature of 87 K and a high degree of epitaxiality with c-axis orientation. The samples have been patterned in the shape of strips of variable width between 10 mu m and 30 mu m. D. C. transport critical current densities of YBa(2)Cu(3)Oy grown on PrBa(2)Cu(3)Oy/Al2O3 have been measured as a function of the temperature and an applied magnetic field.
引用
收藏
页码:1068 / 1069
页数:2
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