Accession Number:
AD1096244
Title:
Magnetic and Multiferroic Properties of Dilute Fe-Doped BaTiO3 Crystals
Descriptive Note:
Journal Article - Open Access
Corporate Author:
NAVAL RESEARCH LAB WASHINGTON DC WASHINGTON United States
Personal Author(s):
Report Date:
2020-03-10
Pagination or Media Count:
7.0
Abstract:
Combining and coupling both magnetic and electric properties in one single phase multiferroic material has attracted high interest recently to enable a broad range of novel devices and applications. To evaluate one potential route toward new multiferroics, we have studied 0.5 Fe-doped BaTiO3 single crystals and measured the ferroelectric, magnetic, and multiferroic properties. X-ray absorption spectroscopy shows the presence of Fe3 , and magnetic measurements confirmed that this has a significant impact on the magnetic properties. Doping of iron introduces paramagnetism from lone iron atoms as well as what appears to be a weak ferromagnetism. Multiferroicity and magnetoelectric ME coupling were observed in the polarization-electric field hysteresis loops with an applied magnetic field, yet there was no direct evidence that ME coupling persists when the sample was in the defect dipole-aligned state.
Descriptors:
- absorption
- crystals
- curie temperature
- glass transition temperature
- diffraction
- electric fields
- materials
- measurement
- radiation
- spectroscopy
- x ray diffraction
- detection
- x rays
- crystal growth
- military research
- magnetic properties
- transitions
- transition temperature
- magnetic fields
- phase transformations