Terahertz Phonon Mode Engineering of Highly Efficient Organic Terahertz Generators
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DOI: 10.1002/adfm.201605583
Abstract: For terahertz (THz) wave generators based on organic electrooptic crystals, their intrinsic phonon modes are playing an essential role in THz generation characteristics. Here, this study proposes an effective design strategy for THz phonon mode… read more here.
Keywords: phonon mode; thz; mode engineering;
Phonon-Mode Calculation, Far- and Mid-Infrared, and Raman Spectra of an ε-Ga0.5Fe1.5O3 Magnet
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Physical Chemistry C"
DOI: 10.1021/acs.jpcc.6b12694
Abstract: Gallium-substituted epsilon iron oxide (e-Ga0.5Fe1.5O3) has drawn attention because its millimeter wave absorption frequency meets the millimeter wave radar frequency for automobiles. We report the phonon modes of e-Ga0.5Fe1.5O3, which has an orthorhombic structure in… read more here.
Keywords: phonon mode; far mid; 5fe1 5o3; phonon ... See more keywords
Soft phonon mode dynamics in Aurivillius-type structures
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DOI: 10.1103/physrevb.96.134114
Abstract: We report the dynamics of soft phonon modes and their role towards the various structural transformations in Aurivillius materials by employing terahertz frequency-domain spectroscopy, atomic pair distribution function analysis, and first-principles calculations. We have chosen… read more here.
Keywords: phonon mode; soft phonon; dynamics aurivillius; phonon ... See more keywords
Measurement of strains in zircon inclusions by Raman spectroscopy
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DOI: 10.1127/ejm/2019/0031-2851
Abstract: We have carried out ab initio hybrid Hartree-Fock/Density Functional Theory simulations to determine the structure and vibrational modes of zircon, ZrSiO4, as a function of different applied strains. The changes in phonon-mode wavenumbers are approximately… read more here.
Keywords: phonon mode; measurement strains; raman shifts; zircon inclusions ... See more keywords