Thin films of sodium-doped lanthanum manganites: role of substrate and thickness on the magnetoresistive response

被引:10
作者
Malavasi, L
Mozzati, MC
Alessandri, I
Affronte, M
Cervetto, V
Azzoni, CB
Flor, G
机构
[1] Univ Pavia, CNR Unita Pavia, IENI, INSTM,Dipartimento Chim Fis, I-27100 Pavia, Italy
[2] Univ Pavia, INFM, Dipartimento Fis A Volta, I-27100 Pavia, Italy
[3] Univ Brescia, INSTM, Lab Struttura Fis, Dipartimento Ingn Meccan, I-25123 Brescia, Italy
[4] Univ Modena, INFM S3, Natl Res Ctr NanoStruct & BioSyst Surfaces, I-41100 Modena, Italy
[5] Univ Modena, Dipartimento Fis, I-41100 Modena, Italy
[6] Univ Zurich, Inst Phys Chem, CH-8057 Zurich, Switzerland
关键词
manganite; perovskites; magnetoresistance; magnetization; thin films;
D O I
10.1016/j.ssi.2004.03.017
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In this paper, we report the results about the synthesis and characterization of optimally doped La0.85Na0.15MnO3 thin films deposited onto SrTiO3 (100), NdGaO3 (100) and NdGaO3 (110) for thickness ranging from 11 to 82 nm. The effect of the substrate nature and orientation and film thickness was investigated in order to optimize the physical properties of the films. We obtained very smooth films displaying magnetoresistance values greater than 70% for temperature near to room temperature which makes them appealing for applicative purposes. (C) 2004 Published by Elsevier B.V.
引用
收藏
页码:265 / 269
页数:5
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