共 26 条
High Curie temperature for La0.7Sr0.3MnO3 thin films deposited on CeO2/YSZ-based buffered silicon substrates
被引:38
作者:
Perna, P.
[1
,2
,3
]
Mechin, L.
[1
]
Chauvat, M. P.
[4
]
Ruterana, P.
[4
]
Simon, Ch
[5
]
di Uccio, U. Scotti
[2
,3
]
机构:
[1] Univ Caen Basse Normandie, CNRS, ENSICAEN, GREYC UMR 6072, F-14050 Caen, France
[2] Univ Naples Federico 2, CNR, INFM, CRS Coherentia, I-80126 Naples, Italy
[3] Univ Naples Federico 2, Dipartimento Sci Fis, I-80126 Naples, Italy
[4] Univ Caen Basse Normandie, CNRS, CEA ENSICAEN, CIMAP UMR 6252, F-14050 Caen, France
[5] CNRS, ENSICAEN, CRISMAT UMR 6508, F-14050 Caen, France
关键词:
EPITAXIAL-GROWTH;
DEVICES;
STRAIN;
YBA2CU3O7-DELTA;
MANGANITES;
SI;
D O I:
10.1088/0953-8984/21/30/306005
中图分类号:
O469 [凝聚态物理学];
学科分类号:
070205 ;
摘要:
Two kinds of epitaxial structures were grown by standard pulsed laser deposition on (001) Si, namely La0.7Sr0.3MnO3/Bi4Ti3O12/CeO2/YSZ/Si (BTO-based), and La0.7Sr0.3MnO3/SrTiO3/CeO2/YSZ/Si (STO-based) multilayers. The samples were investigated by means of x-ray diffraction, transmission electron microscopy, magnetic and transport measurements. The Curie temperature T-C of the BTO-based samples was found to be higher (360 K) than for the typical reference epitaxial LSMO film grown on (001) SrTiO3 single crystal (345 K), due to high compressive in-plane strain. The STO-based samples show high structural quality, low roughness and high T-C (350 K), making them interesting candidates for use in innovative LSMO-based bolometers or spintronic devices operating at room temperature.
引用
收藏
页数:5
相关论文