Pulsed laser deposition of superconducting Nb-doped strontium titanate thin films

被引：53

作者：

Leitner, A ^{[1
]}

Rogers, CT

Price, JC

Rudman, DA

Herman, DR

机构：

[1] Univ Colorado, Dept Phys, Boulder, CO 80309 USA

[2] Natl Inst Stand & Technol, Div 814 03, Boulder, CO 80303 USA

[3] Penn State Univ, Dept Phys, University Pk, PA 16802 USA

来源：

APPLIED PHYSICS LETTERS | 1998年 / 72卷 / 23期

关键词：

D O I：

10.1063/1.121542

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on the growth of superconducting Nb-doped SrTiO3 thin films on LaAlO3 substrates by pulsed laser deposition. We find optimum Nb doping and high mobility for growth near 870 degrees C and chamber pressures below 3 x 10(-4) Pa (2 x :10(-6) Ton). The transport properties were measured from 300 K to 150 mK. The most highly doped samples display metallic behavior, and are superconducting below 350 mK, with transition temperatures similar to those of bulk single crystals. (C) 1998 American Institute of Physics. [S0003-6951 (98)03323-3].

引用

页码：3065 / 3067

页数：3

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