Published June 17, 2013 | Version v1
Journal article Metadata-only

Effect of the thickness of BiFeO3 layers on the magnetic and electric properties of BiFeO3/La0.7Sr0.3MnO3 heterostructures

Creators

  • 1. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China)

Description

BiFeO3 layers with various thicknesses were fabricated on La0.7Sr0.3MnO3 covered SrTiO3 substrates by a laser molecular-beam epitaxy system. The ferromagnetic transition temperature (Tc) and magnetic coercive field (Hc) of BiFeO3/La0.7Sr0.3MnO3 heterostructures are larger than those of the La0.7Sr0.3MnO3 film. With increasing the thickness of the BiFeO3 layer, Tc, Hc, and ferroelectric coercive field of the BiFeO3/La0.7Sr0.3MnO3 heterostructures decrease, while the dielectric permittivity, remanent polarization, and resistance ratio of the ON and OFF states increase. The variations of the magnetic and electric properties with the thickness could be due to the effects of the epitaxial strain and the interface layer.

Additional details

Identifiers

DOI
10.1063/1.4811439;

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
102
Journal Issue
24
Journal Page Range
p. 242902-242902.5
ISSN
0003-6951
CODEN
APPLAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
44117475
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
BISMUTH COMPOUNDS; COERCIVE FORCE; FERRITES; FERROELECTRIC MATERIALS; FILMS; INTERFACES; LANTHANUM COMPOUNDS; LASER RADIATION; LAYERS; MOLECULAR BEAM EPITAXY; PERMITTIVITY; POLARIZATION; STRAINS; STRONTIUM COMPOUNDS; STRONTIUM TITANATES; SUBSTRATES; THICKNESS; TRANSITION TEMPERATURE
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CRYSTAL GROWTH METHODS; DIELECTRIC MATERIALS; DIELECTRIC PROPERTIES; DIMENSIONS; ELECTRICAL PROPERTIES; ELECTROMAGNETIC RADIATION; EPITAXY; FERRIMAGNETIC MATERIALS; IRON COMPOUNDS; MAGNETIC MATERIALS; MATERIALS; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RADIATIONS; RARE EARTH COMPOUNDS; STRONTIUM COMPOUNDS; THERMODYNAMIC PROPERTIES; TITANATES; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
(c) 2013 AIP Publishing LLC