DEPOSITION OF THALLIUM-BASED SUPERCONDUCTING THIN-FILMS BY A SIMPLE THERMAL EVAPORATION METHOD

被引:15
作者
LAI, HC [1 ]
VERNONPARRY, KD [1 ]
CHERN, JD [1 ]
GROVENOR, CRM [1 ]
机构
[1] UNIV OXFORD,DEPT ENGN SCI,OXFORD OX1 3PH,ENGLAND
关键词
D O I
10.1088/0953-2048/4/7/007
中图分类号
O59 [应用物理学];
学科分类号
摘要
Superconducting TI-Ca-Ba-Cu-O thin films less than 1-mu-m thick have been prepared on Y-stabilized ZrO2 (100), MgO (100), and SrTiO3 (100) substrates using thermal evaporation and a two-step annealing process involving the growth of BaCuO2 films followed by ex situ crystallization and thalliation under thallium oxide vapours. We have been able to fabricate reasonably uniform films of the TI2Ca1Ba2Cu2Ox (2122) and TI2Ca2Ba2Cu3Ox (2223) superconducting phases, and have successfully reduced the density of impurity phases by controlling the stoichiometry and morphology of the precursor films and the thalliation conditions. In addition, a 150-mu-m wide, and 1 cm long, track patterned in one of these films using standard photolithography techniques shows a T(c0) of 102 K, a J(c) in excess of 10(4) A cm-2 at 90 K and a strong bolometric response when illuminated with an He-Ne 1 mW laser.
引用
收藏
页码:306 / 311
页数:6
相关论文
共 15 条
[1]   EFFECT OF THE POST-DEPOSITION PROCESSING AMBIENT ON THE PREPARATION OF SUPERCONDUCTING YBA2CU3O7-X COEVAPORATED THIN-FILMS USING A BAF2 SOURCE [J].
CHAN, SW ;
BAGLEY, BG ;
GREENE, LH ;
GIROUD, M ;
FELDMANN, WL ;
JENKIN, KR ;
WILKINS, BJ .
APPLIED PHYSICS LETTERS, 1988, 53 (15) :1443-1445
[2]   SEQUENTIAL ELECTRON-BEAM EVAPORATED-FILMS OF TL2CABA2CU2OY WITH ZERO RESISTANCE AT 97-K [J].
GINLEY, DS ;
KWAK, JF ;
HELLMER, RP ;
BAUGHMAN, RJ ;
VENTURINI, EL ;
MOROSIN, B .
APPLIED PHYSICS LETTERS, 1988, 53 (05) :406-408
[3]   SUPERCONDUCTING THIN-FILMS OF TL2CA2BA2CU3OY AND TL2CABA2CU2OY [J].
GINLEY, DS ;
KWAK, JF ;
HELLMER, RP ;
BAUGHMAN, RJ ;
VENTURINI, EL ;
MITCHELL, MA ;
MOROSIN, B .
PHYSICA C, 1988, 156 (04) :592-598
[4]   SUPERCONDUCTING TL-BA-CA-CU-O FILMS BY SPUTTERING [J].
HONG, M ;
LIOU, SH ;
BACON, DD ;
GRADER, GS ;
KWO, J ;
KORTAN, AR ;
DAVIDSON, BA .
APPLIED PHYSICS LETTERS, 1988, 53 (21) :2102-2104
[5]   HIGHLY ORIENTED SUPERCONDUCTING TL-CA-BA-CU OXIDE THIN-FILMS WITH 2-1-2-2 PHASE [J].
ICHIKAWA, Y ;
ADACHI, H ;
SETSUNE, K ;
HATTA, S ;
HIROCHI, K ;
WASA, K .
APPLIED PHYSICS LETTERS, 1988, 53 (10) :919-921
[6]  
LAI HC, 1991, UNPUB
[7]   THE EFFECTS OF SUBSTRATE-TEMPERATURE ON THE SUPERCONDUCTING PROPERTIES OF TL2CA2BA2CU3O10 FILMS SPUTTER-DEPOSITED FROM STOICHIOMETRIC OXIDE TARGETS [J].
LEE, WY ;
SALEM, J ;
LEE, V ;
DELINE, V ;
HUANG, TC ;
SAVOY, R ;
DURAN, J ;
SANDSTROM, RL .
PHYSICA C, 1989, 160 (5-6) :511-516
[8]   HIGHLY ORIENTED TL2BA2CA2CU3O10 THIN-FILMS BY PULSED LASER EVAPORATION [J].
LIOU, SH ;
AYLESWORTH, KD ;
IANNO, NJ ;
JOHS, B ;
THOMPSON, D ;
MEYER, D ;
WOOLLAM, JA ;
BARRY, C .
APPLIED PHYSICS LETTERS, 1989, 54 (08) :760-762
[9]   PROPERTIES OF TL2BA2CA2CU3OX THIN-FILMS WITH A CRITICAL-TEMPERATURE OF 122-K PREPARED BY EXCIMER LASER ABLATION [J].
NABATAME, T ;
SAITO, Y ;
AIHARA, K ;
KAMO, T ;
MATSUDA, SP .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1990, 29 (10) :L1813-L1815
[10]   PREPARATION OF ORIENTED HIGH-TC TL-CA-BA-CU-O THIN-FILMS FROM CO-CONDENSED AMORPHOUS CA-BA-CU ALLOYS BY POSTDEPOSITION OXIDATION AND TL-DIFFUSION [J].
NAUGLE, DG ;
WANG, PS ;
SHAO, XY ;
HERMANN, AM .
JOURNAL OF APPLIED PHYSICS, 1990, 68 (03) :1399-1401