STUDY OF IN SITU LASER DEPOSITED YBCO THIN FILMS
作者： G. Brorsson , J.A. Alarco , Z.G. Ivanov , H. Olin , P-Å Nilsson
DOI: 10.1016/0022-5088(90)90237-E
关键词:
摘要: YBCO thin films were fabricated by laser deposition, in situ on MgO substrates, using both O2 and N2O as process gas. Films with Tc above 90 K jc of 106 A/cm2 at 77 grown oxygen a substrate temperature 765 °C. Using N2O, the optimum was 745 °C, giving 87 K. At lower temperatures, made had higher (79 K) than (66 K). SEM STM investigations film surfaces showed to consist comparatively smooth background surface distribution larger particles. Both particle size density depended temperature.
growkudos.com
elsevier.com参考文章(9)
G. Koren, A. Gupta, E. A. Giess, A. Segmüller, R. B. Laibowitz, Epitaxial films of YBa2Cu3O7−δon NdGaO3, LaGaO3, and SrTiO3substrates deposited by laser ablation Applied Physics Letters. ,vol. 54, pp. 1054- 1056 ,(1989) , 10.1063/1.101559
B. Roas, L. Schultz, G. Endres, Epitaxial growth of YBa2Cu3O7−x thin films by a laser evaporation process Applied Physics Letters. ,vol. 53, pp. 1557- 1559 ,(1988) , 10.1063/1.100437
M. C. Gallagher, J. G. Adler, Low temperature scanning tunneling topography of YBa2Cu3Ox superconducting films Journal of Vacuum Science and Technology. ,vol. 8, pp. 464- 467 ,(1990) , 10.1116/1.577019
Masato Kakihana, Lars Börjesson, Sten Eriksson, Peter Svedlindh, Per Norling, None, Synthesis of highly pure YBa2Cu3O7−δ superconductors using a colloidal processing technique Physica C-superconductivity and Its Applications. ,vol. 162, pp. 931- 932 ,(1989) , 10.1016/0921-4534(89)90528-5
T. Venkatesan, X. D. Wu, B. Dutta, A. Inam, M. S. Hegde, D. M. Hwang, C. C. Chang, L. Nazar, B. Wilkens, High‐temperature superconductivity in ultrathin films of Y1Ba2Cu3O7−x Applied Physics Letters. ,vol. 54, pp. 581- 583 ,(1989) , 10.1063/1.101463
G. Koren, A. Gupta, R. J. Baseman, Role of atomic oxygen in the low‐temperature growth of YBa2Cu3O7−δthin films by laser ablation deposition Applied Physics Letters. ,vol. 54, pp. 1920- 1922 ,(1989) , 10.1063/1.101496
Scott R. Summerfelt, C. Barry Carter, M. Grant Norton, Lisa A. Tietz, Observation of the early stages of growth of superconducting thin films by transmission electron microscopy Applied Physics Letters. ,vol. 55, pp. 2348- 2350 ,(1989) , 10.1063/1.102363
S. S. Laderman, R. C. Taber, R. D. Jacowitz, F. Bridges, G. A. N. Connell, J. B. Boyce, K. Char, D. K. Fork, T. H. Geballe, Properties of epitaxial YBa2Cu3O7thin films on Al2O3 {1̄012} Applied Physics Letters. ,vol. 56, pp. 785- 787 ,(1990) , 10.1063/1.103317
G. Brorsson, Z. Ivanov, P.-Å. Nilsson, In Situ YBCO thin Films Made by Laser Deposition Springer, Boston, MA. pp. 169- 175 ,(1990) , 10.1007/978-1-4684-1345-8_26