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Terahertz-infrared spectra of the rare-earth scandate DyScO3 single crystal

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Boris,  A. V.
Department Solid State Spectroscopy (Bernhard Keimer), Max Planck Institute for Solid State Research, Max Planck Society;

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Gorshunov,  B. P.
Abteilung v. Klitzing, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;
Department Solid State Spectroscopy (Bernhard Keimer), Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Komandin, G. A., Zhukova, E. S., Torgashev, V. I., Boris, A. V., Boris, A. A., Motovilova, E. A., et al. (2013). Terahertz-infrared spectra of the rare-earth scandate DyScO3 single crystal. Journal of Applied Physics, 114(2): 024102.


Cite as: https://hdl.handle.net/21.11116/0000-000E-C571-4
Abstract
Terahertz and infrared spectra of the optical response of DyScO3 single crystal are measured at temperatures from 5 K to 300 K for two different polarizations E parallel to[(1) over bar 01] and E parallel to[010], i.e., along the two crystallographic directions of the DyScO3 substrates used for growing of thin films and heterostructures. Detailed reference data on the terahertz dielectric characteristics of the DyScO3 substrate are presented. We discuss the mechanisms responsible for electromagnetic absorption. Phonon spectra are analyzed along with the results of group-theoretical analysis of the crystal structure. Besides phonon modes, additional resonance absorptions are found and assigned to the electronic transitions between Kramers doublets in the three lowest-energy terms of the Dy3+ ion. (C) 2013 AIP Publishing LLC.