Calculation of the optical phonons in ordered Ba2MgWO6 perovskite using short‐range force field model
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Raman Spectroscopy"
DOI: 10.1002/jrs.5460
Abstract: J Raman Spectrosc. 2018;1–8. Abstract Ba2MgWO6 is a double perovskite tungstate presenting a cubic structure with cubic space group Oh. This B‐site ordered system has potential applications as microwave ceramics in communication systems. Here, we… read more here.
Keywords: range force; short range; using short; force ... See more keywords
Optical phonons in pentanary compound (Ag Cu1−)2ZnSnS4 semiconductor: A raman study
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2020.158113
Abstract: Abstract The present study reports the phonon modes in the pentanery compound semiconductor (AgxCu1-x)2ZnSnS4 (ACZTS) (0 ≤ x ≤ 1) as identified using Raman Spectroscopy. When traversing from Cu2ZnSnS4 (x = 0) to Ag2ZnSnS4 (x… read more here.
Keywords: raman; semiconductor; pentanary compound; phonons pentanary ... See more keywords
Influence of confined optical phonons on the magneto-optical properties in parabolic quantum wells
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Physics and Chemistry of Solids"
DOI: 10.1016/j.jpcs.2020.109501
Abstract: Abstract In this study, we use the operator projection method and descriptions of the Fuchs–Kliewer, Ridley, and Huang–Zhu confined phonon models to investigate the influence of confined optical phonons on the magneto-optical properties in parabolic… read more here.
Keywords: quantum; confined optical; optical phonons; influence confined ... See more keywords
Interface optical phonons and their electron-phonon interactions in ZnS/CdS multi-shell spherical quantum dots
Sign Up to like & getrecommendations! Published in 2018 at "Superlattices and Microstructures"
DOI: 10.1016/j.spmi.2018.02.015
Abstract: Abstract The properties of interface optical phonons and their electron-phonon interactions in ZnS/CdS multi-shell spherical quantum dots are studied by adopting dielectric continuum model. The dispersion curves and electron-phonon coupling strengths for interface optical phonons… read more here.
Keywords: interface optical; electron phonon; zns cds; multi shell ... See more keywords
Surface-Enhanced Infrared Absorption by Optical Phonons in Nanocrystal Monolayers on Au Nanoantenna Arrays
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Physical Chemistry C"
DOI: 10.1021/acs.jpcc.6b11431
Abstract: We report on a study of surface-enhanced infrared absorption (SEIRA) by optical phonons in monolayers (MLs) of CdSe, CdS, and PbS nanocrystals (NCs) deposited on arrays of linear nanoantennas the optimized structural parameters of which… read more here.
Keywords: enhanced infrared; surface enhanced; absorption optical; optical phonons ... See more keywords
Effects of two-mode transverse optical phonons in bulk wurtzite AlGaN on electronic mobility in AlGaN/GaN quantum wells
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Applied Physics"
DOI: 10.1063/1.4974448
Abstract: The two-mode property of bulk transverse optical (TO) phonons in ternary mixed crystals of wurtzite AlxGa1-xN has been investigated by introducing impurity modes in a modified random-element isodisplacement model. Based on the dielectric continuous model,… read more here.
Keywords: effects two; gan quantum; two mode; algan gan ... See more keywords
Infrared-active optical phonons in LiFePO4 single crystals
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Applied Physics"
DOI: 10.1063/1.4995282
Abstract: Infrared-active optical phonons were studied in olivine LiFePO4 oriented single crystals by means of both rotating analyzer and rotating compensator spectroscopic ellipsometry in the spectral range between 50 and 1400 cm−1. The eigenfrequencies, oscillator strengths, and… read more here.
Keywords: phonons lifepo4; single crystals; active optical; phonon modes ... See more keywords
“Hot electrons in Si lose energy mostly to optical phonons”: Truth or myth?
Sign Up to like & getrecommendations! Published in 2019 at "Applied Physics Letters"
DOI: 10.1063/1.5099914
Abstract: Theoretical studies of heat generation and diffusion in Si devices generally assume that hot electrons in Si lose their energy mainly to optical phonons. Here, we briefly review the history of this assumption, and using… read more here.
Keywords: lose energy; hot electrons; energy; heat generation ... See more keywords
Coherent control of 40-THz optical phonons in diamond using femtosecond optical pulses
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.101.174301
Abstract: Coherent control is an optical technique to manipulate quantum states of matter. The coherent control of 40-THz optical phonons in diamond was demonstrated by using a pair of sub-10-fs optical pulses. The optical phonons were… read more here.
Keywords: thz optical; optical phonons; control thz; coherent control ... See more keywords
Systematic Raman study of optical phonons in RBa2Cu3O6+δ ( R=Y , Dy, Gd, Sm, Nd): Antiferromagnetic coupling strength versus lattice parameters
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.99.094525
Abstract: We present a systematic study of the interplay between lattice parameters and the energy of the optical phonons as well as the antiferromagnetic coupling strength, $J$, in the high-$T_{\text{c}}$ superconducting cuprate $R$Ba$_2$Cu$_3$O$_{6+\delta}$ (\mbox{R-123}, $R =$… read more here.
Keywords: lattice parameters; lattice; optical phonons; coupling strength ... See more keywords