Ferroelectric and colossal magnetoresistive properties of a PbZr1-xTixO3/La1-xSrxMnO3 heterostructure film

被引：0
|
作者：
Mitsugi, Fumiaki [1 ]
Yamagata, Yukihiko [1 ]
Ikegami, Tomoaki [1 ]
Ebihara, Kenji [1 ]
Narayan, Jagdish [2 ]
Grishin, Alexander M. [3 ]
机构：
[1] Dept. of Elec. and Comp. Engineering, Kumamoto University, Kurokami, Kumamoto 860-8555, Japan
[2] Dept. of Mat. Sci. and Engineering, North Carolina State University, Raleigh, NC 27695-7916, United States
[3] Dept. of Condensed Matter Physics, Royal Institute of Technology, S-10044 Stockholm, Sweden
来源：
Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers | 2000年 / 39卷 / 9 B期
关键词：
Capacitors - Colossal magnetoresistance - Crystallization - Ferroelectric materials - Ferroelectricity - Permittivity - Pulsed laser deposition - Temperature - Yttrium barium copper oxides;
D O I：
10.1143/jjap.39.5418
中图分类号：
学科分类号：
摘要：
We report the ferroelectric and magnetoresistive properties and crystallization of a PbZr0.52Ti0.48O3 (PZT)/La0.8Sr0.2MnO3 (LSMO) heterostructure film prepared by pulsed-laser deposition on a MgO(100) single crystal substrate. Ferroelectric properties such as the hysteresis loop and dielectric constant of the Au/PZT/LSMO capacitor were compared with those of the Au/PZT/YBa2Cu3O7-x (YBCO) superconductor heterostructure film. The resistivity of the LSMO film was as low as that of the YBCO film at room temperature. The fabricated Au/PZT/LSMO capacitor had a remanent polarization of 29 μC/cm2, a coercive field of 30 kV/cm and a dielectric constant of about 1000.
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页码：5418 / 5420
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