Effect of LaNiO3/Pt double layers on the characteristics of (PbxLa1−x)(ZryTi1−y)O3thin films
作者:
Tzu‐Feng Tseng,
Kuo‐Shung Liu,
Tai‐Bar Wu,
I.‐Nan Lin,
期刊:
Applied Physics Letters
(AIP Available online 1996)
卷期:
Volume 68,
issue 18
页码: 2505-2510
ISSN:0003-6951
年代: 1996
DOI:10.1063/1.115836
出版商: AIP
数据来源: AIP
摘要:
Characteristics of LaNiO3(LNO) thin films deposited by rf sputtering process were compared with that prepared by pulsed laser deposition (PLD) process. rf sputtered LNO films were [200] preferentially oriented with a low surface resistivity (&rgr;s=0.55 m&OHgr; cm) and the PLD deposited films were [110] predominated with a slightly larger surface resistivity (&rgr;s=6.38 m&OHgr; cm). Using Pt coating as underneath layer markedly reduced the surface resistivity (&rgr;s=0.05 m&OHgr; cm) without modifying the texture characteristics of the LNO layers. PLZT films subsequently deposited on LNO layers inherited the texture characteristics of the underlying LNO layers. Ferroelectric properties of PLZT films were optimized when using LNO–Pt double layers as bottom electrodes. The remanent polarization and coercive force obtained werePr=14.9 &mgr;C/cm2andEc=3.5 kV/cm, respectively. ©1996 American Institute of Physics.
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