Room temperature ferroelectric, ferromagnetic and magnetoelectric properties of Ba-doped BiFeO3 thin films
Creators
- 1. Center for Superconducting and Magnetic Materials, Department of Physics, National University of Singapore, Singapore 117542, Singapore (Singapore)
Description
Ba-doped multiferroic BiFeO3thin films were successfully prepared on Pt/TiO2/SiO2/Si(1 0 0) substrates by pulsed laser deposition. X-ray diffraction showed that the Bi0.75Ba0.25FeO3thin film was single phase with (1 0 1) preferential polycrystalline orientation. Both ferroelectricity and ferromagnetism of these films were observed at room temperature by P-E and M-H loop measurements, respectively. The magnetoelectric coupling effect was demonstrated by measuring the dielectric constant in a varying magnetic field. The dielectric constants measured at 10 kHz increased with an increase in the applied magnetic field, giving a coupling coefficient (εr (H) - εr (0))/εr (0) of 1.1% at H = 8 kOe at room temperature, which shows potential application
Additional details
Identifiers
- DOI
- 10.1088/0022-3727/40/6/002;
- PII
- S0022-3727(07)36653-9;
Publishing Information
- Journal Title
- Journal of Physics. D, Applied Physics
- Journal Volume
- 40
- Journal Issue
- 6
- Journal Page Range
- p. 1603-1607
- ISSN
- 0022-3727
- CODEN
- JPAPBE
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38085911
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- BARIUM COMPOUNDS; BISMUTH COMPOUNDS; DOPED MATERIALS; ENERGY BEAM DEPOSITION; FERROELECTRIC MATERIALS; FERROMAGNETISM; GRAIN ORIENTATION; IRON OXIDES; LASER RADIATION; MAGNETIC FIELDS; PERMITTIVITY; PLATINUM; POLYCRYSTALS; PULSED IRRADIATION; SILICON; SILICON OXIDES; TEMPERATURE RANGE 0273-0400 K; THIN FILMS; TITANIUM OXIDES; X-RAY DIFFRACTION
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; COHERENT SCATTERING; CRYSTALS; DEPOSITION; DIELECTRIC MATERIALS; DIELECTRIC PROPERTIES; DIFFRACTION; ELECTRICAL PROPERTIES; ELECTROMAGNETIC RADIATION; ELEMENTS; FILMS; IRON COMPOUNDS; IRRADIATION; MAGNETISM; MATERIALS; METALS; MICROSTRUCTURE; ORIENTATION; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; PLATINUM METALS; RADIATIONS; SCATTERING; SEMIMETALS; SILICON COMPOUNDS; SURFACE COATING; TEMPERATURE RANGE; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS