Transport properties and anisotropy measurements on [(BaCuO/sub 2/)/(CaCuO/sub 2/)] superconducting superlattices

Author

Canesi, A. ; Gariglio, S. ; Marre, D. ; Pallecchi, I. ; Putti, M. ; Balestrino, G. ; Medaglia, P.G. ; Petrocelli, G.

Author_Institution

Dipt. di Fisica, Genova Univ., Italy

Volume

9

Issue

2

fYear

1999

fDate

6/1/1999 12:00:00 AM

Firstpage

2410

Lastpage

2413

Abstract

Infinite layer based superlattices [(BaCuO/sub 2/)/sub m//(CaCuO/sub 2/)/sub n/] are a new kind of artificial superconductors with interesting properties both for fundamental comprehension purposes and for future possible applications. The artificial nature of these compounds offers the possibility of analyzing the influence of the structural properties on the superconducting behavior. For example we can study the correlation between the number of CuO/sub 2/ planes contained in the infinite layer block (CaCuO/sub 2/) and the transport properties. In this paper, we present transport properties characterization of some thin films of this family containing different numbers of CuO/sub 2/ planes. Such films have been grown by the pulsed laser deposition (PLD) technique. In order to investigate the influence of the number of CuO/sub 2/ planes and of the distance between them on critical temperature, charge concentration, and anisotropy, we perform measurements of resistivity, magnetoresistivity and Hall coefficient as functions of temperature and applied magnetic field.

Keywords

Hall effect; barium compounds; calcium compounds; carrier density; electrical resistivity; high-temperature superconductors; magnetoresistance; pulsed laser deposition; superconducting superlattices; superconducting thin films; superconducting transition temperature; (BaCuO/sub 2/)-(CaCuO/sub 2/); (BaCuO/sub 2/)/(CaCuO/sub 2/); CuO/sub 2/ planes number; CuO/sub 2/ planes separation; Hall coefficient; anisotropy; applied magnetic field dependence; artificial superconductors; ccritical temperature; harge concentration; magnetoresistivity; pulsed laser deposition; resistivity; structural properties; superconducting behavior; superconducting superlattices; temperature dependence; thin films; transport properties; Anisotropic magnetoresistance; Magnetic field measurement; Optical pulses; Pulsed laser deposition; Superconducting epitaxial layers; Superconducting materials; Superconducting thin films; Superconductivity; Superlattices; Temperature;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.784958

Filename

784958