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Magnetic exchange interaction between rare-earth and Mn ions in multiferroic hexagonal manganites
D. Talbayev, A. D. LaForge, S. A. Trugman +4
We report a study of magnetic dynamics in multiferroic hexagonal manganite HoMnO3 by far-infrared spectroscopy. Low-temperature magnetic excitation spectrum of HoMnO3 consists of m…
Planar wallpaper group metamaterial for novel terahertz applications
Christopher M. Bingham, Hu Tao, Xianliang Liu +3
We present novel metamaterial structures based upon various planar wallpaper groups, in both hexagonal and square unit cells. An investigation of metamaterials consisting of one, t…
A metamaterial absorber for the terahertz regime: Design, fabrication and characterization
Hu Tao, Nathan I. Landy, Christopher M. Bingham +3
We present a metamaterial that acts as a strongly resonant absorber at terahertz frequencies. Our design consists of a bilayer unit cell which allows for maximization of the absorp…
Novel electrically resonant terahertz metamaterials
W. J. Padilla, M. T. Aronsson, C. Highstrete +3
We present a new class of artificial materials which exhibit a tailored response to the electrical component of electromagnetic radiation. These electric metamaterials (EM-MMs) are…