Magnetic and multiferroic properties of dilute Fe-doped BaTiO3 crystals
Source abstract
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.
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Research context
OpenAlex topics: Multiferroics and related materials · Ferroelectric and Piezoelectric Materials · Magnetic and transport properties of perovskites and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
U.S. Naval Research Laboratory 1 , Washington, District of Columbia 20375, USA
U.S. Naval Academy 2 , Annapolis, Maryland 21402, USA
Electrosciences Ltd. 3 , Farnham, Surrey, United Kingdom
XMaS Beamline, European Synchrotron Radiation Facility 4 , Grenoble F-38043, France
Oliver Lodge Laboratory, Department of Physics, University of Liverpool 5 , Liverpool L69 7ZE, United Kingdom
Funding
Office of Naval Research Global · Office of Naval Research
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