253 citations · 491 across the 7 of their papers we have counts for
7 papers
Observation of plasmon-phonon coupling in natural 2D graphene-talc heterostructures
Ingrid D. Barcelos, Alisson R. Cadore, Ananias B. Alencar +8
Two-dimensional (2D) materials occupy noteworthy place in nanophotonics providing for subwavelength light confinement and optical phenomena dissimilar to those of their bulk counte…
High-temperature structural phase transition and infrared dielectric features of La2CoMnO6
R. X. Silva, A. Nonato, R. L. Moreira +2
Temperature-dependent FAR-infrared reflectivity spectra of partially ordered magnetodielectric La2CoMnO6 is presented, from room temperature up to 675 K. A clear first-ordered stru…
Intrinsic dielectric properties of magnetodielectric LaCoMnO
R. X. Silva, R. L. Moreira, R. M. Almeida +2
Manganites with double perovskite structure are being attractive because of their interesting magnetoelectric and dielectric responses. Particularly, colossal dielectric constant (…
Infrared reflectivity of the phonon spectra in multiferroic TbMnO3
R. Schleck, R. L. Moreira, H. Sakata +1
We measured the temperature dependent infrared reflectivity spectra of TbMnO3 with the electric field of light polarized along each of the three crystallographic axes. We analyzed…
Elastic and magnetic effects on the infrared phonon spectra of MnF2
R. Schleck, Y. Nahas, R. P. S. M. Lobo +4
We measured the temperature dependent infrared reflectivity spectra of MnF2 between 4 K and room temperature. We show that the phonon spectrum undergoes a strong renormalization at…
Infrared phonon dynamics of multiferroic BiFeO3 single crystal
R. P. S. M. Lobo, R. L. Moreira, D. Lebeugle +1
We discuss the first infrared reflectivity measurement on a BiFeO3 single crystal between 5 K and room temperature. The 9 predicted ab-plane E phonon modes are fully and unambiguou…