Structural, dielectric and Raman-spectroscopic study of complex electric and magnetic interactions in multiferroic ionic crystals
by Holger Gibhardt*, Fabian Ziegler, Götz Eckold
Georg-August-University of Göttingen, Tammannstr. 6, D-37077 Göttingen, Germany.
* Corresponding author: email@example.com
Multiferroic materials are of great interest, since they provide the simultaneous presence
of (anti-)ferromagnetic, (anti-)ferroelectric and (anti-)ferroelastic ordered regions within
a crystal. Unfortunately, most systems that have been investigated so far exhibit these
extraordinary properties only at low temperatures. In view of possible applications in
information technology, sensor technology etc., it is therefore a crucial task to increase
the temperature range of multiferroics. Since the exact mechanism of spin coupling with
the movement of ions and the resulting electric dipole moment is still not fully
understood, detailed experimental and theoretical studies are needed which require
advanced techniques like high-resolution Raman-spectroscopy with suitable laser
Hence, we used a novel solid-state red laser Solo 640 (UNIKLASERS), which meets these requirements very well. This laser has a wavelength of 640 nm and a maximum power of 500 mW (at the sample, 10 mW are applied)...[More]
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