[BaCu02)m./[[Ca,Sr]CuO2]n superlattices grown by pulsed laser deposition: structural and electrical transport properties

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

doi:10.1117/12.332457

9 December 1998 [BaCu0₂)m./[[Ca,Sr]CuO₂]n superlattices grown by pulsed laser deposition: structural and electrical transport properties

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

Author Affiliations +

Proceedings Volume 3480, Superconducting Superlattices II: Native and Artificial; (1998) https://doi.org/10.1117/12.332457
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

In this paper we show that (BaCuO₂)_m/((Ca,Sr)CuO₂)_n superlattices with good crystallographic quality can be engineered by Pulsed Laser Deposition in a wide range of composition, namely for m equals 2 and n ranging form 1 to 6. The temperature dependence of resistivity of the superlattices grown at relatively high oxygen pressure and temperatures above 570 degrees C is metallic with a full transition to a superconductive state. For optimized growth conditions, the critical temperature can reach a value of about 80 K. We investigated some of the electrical transport properties of these superlattices. The result of these measurements indicate, for these artificial structures, an intermediate degree of anisotropy between the highly anisotropic BSCCO and the relatively isotropic YBCO. Moreover, the dependence of T_c on the number of CaCuO₂ layers was investigated and a maximum was found for n equals 2-3.

Citation Download Citation

Giusepe Balestrino, A. Crisan, Sergio Martellucci, P. G. Medaglia, A. Paoletti, and G. Petrocelli "[BaCu0₂)m./[[Ca,Sr]CuO₂]n superlattices grown by pulsed laser deposition: structural and electrical transport properties", Proc. SPIE 3480, Superconducting Superlattices II: Native and Artificial, (9 December 1998); https://doi.org/10.1117/12.332457

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