Adjusted oscillator strength matching for hybrid magnetic and electric excitations in Dy₃Fe₅O₁₂ garnet
- Rogers, P. D. Department of Physics, New Jersey Institute of Technology, Newark, USA
- Choi, Y. J. Rutgers Center for Emergent Materials and Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey, USA
- Standard, E. C. Department of Physics, New Jersey Institute of Technology, Newark, USA
- Kang, T. D. Department of Physics, New Jersey Institute of Technology, Newark, USA
- Ahn, K. H. Department of Physics, New Jersey Institute of Technology, Newark, USA
- Dubroka, Adam Department of Physics, University of Fribourg, Switzerland
- Marsik, Premysl Department of Physics, University of Fribourg, Switzerland
- Wang, Ch. Department of Physics, University of Fribourg, Switzerland
- Bernhard, Christian Department of Physics, University of Fribourg, Switzerland
- Park, S. Rutgers Center for Emergent Materials and Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey, USA - Department of Physics, Chung-Ang University, Seoul, South Korea
- Cheong, S.-W. Rutgers Center for Emergent Materials and Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey, USA
- Kotelyanskii, M. Department of Physics, New Jersey Institute of Technology, Newark, USA - Rudolph Technologies Inc., Flanders, New Jersey, USA
- Sirenko, Andrei A. Department of Physics, New Jersey Institute of Technology, Newark, USA
-
03.05.2011
Published in:
- Physical Review B - Condensed Matter and Materials Physics. - 2011, vol. 83, no. 17, p. 174407
English
Far-infrared spectra of magnetodielectric Dy₃Fe₅O₁₂ garnet were studied using a combination of transmittance, reflectivity, and rotating analyzer ellipsometry. In addition to purely dielectric and magnetic modes, we observed several hybrid modes with a mixed magnetic and electric dipole activity. Using 4×4 matrix formalism for materials with μ(ω)≠1, we modeled the experimental optical spectra and determined the far-infrared dielectric and magnetic permeability functions. The matching condition μ(ωh)Se=ɛ(ωh)Sm for the oscillator strengths S₍₎ explains the observed vanishing of certain hybrid modes at ωh in reflectivity.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Physique
- Language
-
- English
- Classification
- Physics
- License
- License undefined
- Identifiers
-
- RERO DOC 27227
- DOI 10.1103/PhysRevB.83.174407
- Persistent URL
- https://folia.unifr.ch/unifr/documents/301956
Statistics
Document views: 50
File downloads:
- ber_aos.pdf: 102