2010/07/19 by Umut Adem, L. Wang, Liran Wang +15 · 2 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Condensed matter physics #Coupling (piping) #Coupling constant #Crystal Structures and Properties #Dielectric #Magnetic field #Magnetostriction #Materials science #Multiferroics and related materials #Nuclear magnetic resonance #Phonon #Physics #Quantum mechanics #Raman spectroscopy #cond-mat.mtrl-sci
paper · pdf · doi:10.1103/physrevb.82.064406
Accepted for publication in Physical Review B
arxiv created 2010/07/19 · openalex publication_date 2010/08/06 · arxiv updated 2015/05/19 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We have studied the magnetodielectric and magnetoelastic coupling in TbFe3(BO3)4 single crystals by means of capacitance, magnetostriction, and Raman spectroscopy measurements. The data reveal strong magnetic field effects on the dielectric constant and on the macroscopic sample length which are associated to long-range magnetic ordering and a field-driven metamagnetic transition. We discuss the coupling of the dielectric, structural, and magnetic order parameters and attribute the origin of the magnetodielectric coupling to phonon mode shifts according to the Lyddane-Sachs-Teller relation.