Pulsed laser deposition of oxide cuprate superlattices

Giusepe Balestrino; Sergio Martellucci; P. G. Medaglia; A. Paoletti; G. Petrocelli; M. Tonti

doi:10.1117/12.316607

14 July 1998 Pulsed laser deposition of oxide cuprate superlattices

Giusepe Balestrino, Sergio Martellucci, P. G. Medaglia, A. Paoletti, G. Petrocelli, M. Tonti

Proceedings Volume 3423, Second GR-I International Conference on New Laser Technologies and Applications; (1998) https://doi.org/10.1117/12.316607
Event: Second GR-I International Conference on New Laser Technologies and Applications, 1997, Olympia, Greece

Abstract

Pulsed laser deposition technique (PLD) has been successfully used to grow artificially layered films of the CuBa₂(Ca_1-xSr_x)_n-1 Cu_nO_y compound using only two targets having nominal composition BaCuO_y and (Ca_1-xSr_x)CuO_y respectively. n was varied between 2 and 5. The kinematic analysis of the x-ray diffraction spectra reveals that the average random discrete thickness fluctuations which affects both the BaCuOy and (Ca_1-xSr_x)CuO_y layers are much smaller than one atomic layer. Such features are confirmed by the appearance of sharp peaks even for the nequals2 artificially layered structure where only one (Ca_1-xSr_x)CuO_y cell is deposited in the stacking sequence. A major difference is found in the behavior of resistivity between films containing Sr and Ca respectively. Namely (BaCuO₂)₂/[(Ca_1-xSr_x)CuO_y]_n films never show any trace of superconductivity, while [BaCuO₂]_n/[CaCuO₂]_n films result to have, for growth oxygen pressures P > 0.2 mbar a full transition by laser deposition technique with a low interfacial disorder and give strong support to the idea of synthesizing new artificial high Tc structures by the PLD technique.

Citation Download Citation

Giusepe Balestrino, Sergio Martellucci, P. G. Medaglia, A. Paoletti, G. Petrocelli, and M. Tonti "Pulsed laser deposition of oxide cuprate superlattices", Proc. SPIE 3423, Second GR-I International Conference on New Laser Technologies and Applications, (14 July 1998); https://doi.org/10.1117/12.316607

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available