Terahertz spectroscopy of multiferroic EuFe3(BO 3)4
Document Type
Article
Publication Date
7-30-2012
Abstract
The terahertz spectra of a rare-earth iron borate with the huntite structure are obtained for the first time. We study the low-temperature (4.0-90 K) α-polarized transmittance spectra of the EuFe3(BO 3)4 single crystal in the region 0.9-6.0 THz. Pronounced shifts of phonon frequencies and appearance of new phonon modes at the temperature TS=58 K of the R32→P3121 structural phase transition are observed. Additional shifts of phonon frequencies occur at the temperature TN=34 K of the magnetic ordering of the Fe subsystem, thus evidencing the spin-phonon coupling in this multiferroic material. © 2012 Elsevier B.V.
Identifier
84864284355 (Scopus)
Publication Title
Physics Letters Section A General Atomic and Solid State Physics
External Full Text Location
https://doi.org/10.1016/j.physleta.2012.06.028
ISSN
03759601
First Page
2562
Last Page
2564
Issue
37
Volume
376
Grant
09-02-00171-a
Fund Ref
Russian Foundation for Basic Research
Recommended Citation
Boldyrev, K. N.; Stanislavchuk, T. N.; Klimin, S. A.; Popova, M. N.; and Bezmaternykh, L. N., "Terahertz spectroscopy of multiferroic EuFe3(BO 3)4" (2012). Faculty Publications. 18161.
https://digitalcommons.njit.edu/fac_pubs/18161
