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Growth and micro structural studies on Yittria Stabilized Zirconia (YSZ) and Strontium Titanate (STO) buffer layersMicrostructure of Yittria Stabilized Zirconia (YSZ) and Strontium Titanate (STO) of radio frequency magnetron sputtered buffer layers was studied at various sputtering conditions on Si (100), Sapphire and LaAlO3 (100) substrates. The effect of substrate temperatures up to 800 C and sputtering gas pressures in the range of 50 mTorr. of growth conditions was studied. The buffer layers of YSZ and STO showed a strong tendency for columnar growth was observed above 15 mTorr sputtering gas pressure and at high substrate temperatures. Post annealing of these films in oxygen atmosphere reduced the oxygen deficiency and strain generated during growth of the films. Strong c-axis oriented superconducting YBa2Cu3O7-x (YBCO) thin films were obtained on these buffer layers using pulsed laser ablation technique. YBCO films deposited on multilayers of YSZ and STO were shown to have better superconducting properties.
Document ID
19960000313
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Srinivas, S. (Hyderabad Univ. India)
Pinto, R. (Tata Inst. of Fundamental Research Bombay, India)
Pai, S. P. (Tata Inst. of Fundamental Research Bombay, India)
Dsousa, D. P. (Tata Inst. of Fundamental Research Bombay, India)
Apte, P. R. (Tata Inst. of Fundamental Research Bombay, India)
Kumar, D. (Tata Inst. of Fundamental Research Bombay, India)
Purandare, S. C. (Tata Inst. of Fundamental Research Bombay, India)
Bhatnagar, A. K. (Hyderabad Univ. India)
Date Acquired
September 6, 2013
Publication Date
April 1, 1995
Publication Information
Publication: NASA. Johnson Space Center, Proceedings of the 4th International Conference and Exhibition: World Congress on Superconductivity, Volume 2
Subject Category
Solid-State Physics
Accession Number
96N10313
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19960000272Collected WorksProceedings of the 4th International Conference and Exhibition: World Congress on Superconductivity, Volume 2
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