Structural and thermal characterization of La5Ca9Cu24O41 thin films grown by pulsed laser deposition on (1 1 0) SrTiO3 substrates

被引：6

作者：

Svoukis, E. ^{[1
]}

Athanasopoulos, G. I. ^{[1
]}

Altantzis, Th. ^{[2
]}

Lioutas, Ch. ^{[2
]}

Martin, R. S. ^{[3
]}

Revcolevschi, A. ^{[3
]}

Giapintzakis, J. ^{[1
]}

机构：

[1] Univ Cyprus, Dept Mech & Mfg Engn, CY-1678 Nicosia, Cyprus

[2] Aristotle Univ Thessaloniki, Dept Phys, Thessaloniki 54124, Greece

[3] Univ Paris 11, LPCES ICMMO Bat 410, F-91405 Orsay, France

来源：

THIN SOLID FILMS | 2012年 / 520卷 / 14期

关键词：

Thin films; La5Ca9Cu24O41; 3-omega method; Pulsed laser deposition; 3-OMEGA METHOD; SPIN-LADDER; CONDUCTIVITY;

D O I：

10.1016/j.tsf.2011.10.131

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present study stoichiometric, b-axis oriented La5Ca9Cu24O41 thin films were grown by pulsed laser deposition on (1 1 0) SrTiO3 substrates in the temperature range 600-750 degrees C. High resolution transmission electron microscopy was employed to investigate the growth mechanism and the epitaxial relationship between the SrTiO3 substrates and the La5Ca9Cu24O41 films grown at 700 degrees C. The 3-omega method was used to measure the cross-plane thermal conductivity of La5Ca9Cu24O41 films in the temperature range 50-350 K. The observed glass-like behavior is attributed to atomic-scale defects, grain boundaries and an interfacial layer formed between film and substrate. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：4613 / 4616

页数：4

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