Film growth for coated conductor-oriented REBa2Cu3Oy films by means of excimer and Nd:YAG pulsed laser deposition

We investigated the influence of laser sources, such as an excimer and a Nd:YAG laser, on REBa2Cu3Oy (RE123) film growth by pulsed laser deposition (PLD). Good superconducting properties such as Tc∼90K and Jc>1MA/cm2 at 77K were obtained for the films produced in this study. On the other hand, Jc...

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Veröffentlicht in:	Physica. C, Superconductivity Superconductivity, 2010-12, Vol.470 (SUP1), p.S1003-S1004
Hauptverfasser:	Ichino, Yusuke, Yoshida, Yutaka, Yoshimura, Takuya, Takai, Yoshiaki, Yoshizumi, Masateru, Izumi, Teruo, Shiohara, Yuh
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Critical currents Exact sciences and technology Excimer High-tc films Nd:YAG Physics Properties of type I and type II superconductors Pulsed laser deposition REBa2Cu3Oy Superconducting films and low-dimensional structures Superconductivity Thin film
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Beschreibung
Zusammenfassung:	We investigated the influence of laser sources, such as an excimer and a Nd:YAG laser, on REBa2Cu3Oy (RE123) film growth by pulsed laser deposition (PLD). Good superconducting properties such as Tc∼90K and Jc>1MA/cm2 at 77K were obtained for the films produced in this study. On the other hand, Jc values in magnetic fields were lower compared to a Y123 film prepared by a conventional excimer-PLD method. In addition to the Jc values, surface morphologies were also different. The Y123 film produced by Nd:YAG-PLD exhibited smaller grain diameters than the film produced by excimer-PLD.
ISSN:	0921-4534 1873-2143
DOI:	10.1016/j.physc.2010.01.062