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Related papers: CZTS Raman spectra beyond kesterite: a first-princ…

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QED-model for multichain coupled qubit system, proposed in \cite{Part1}, was confirmed by Raman scattering studies of quasi-1D carbon zigzag-shaped nanotubes (CZSNTs), produced by high energy ion beam modification of natural diamond single…

Quantum Physics · Physics 2011-05-27 Dmitry Yearchuck , Alla Dovlatova

Surface enhanced Raman scattering (SERS) effects on tin dioxide in the form of bulk material, nanostructured thin films and colloidal solutions were investigated. Raman spectra are characterized by the three Raman scattering peaks at 478,…

Materials Science · Physics 2015-06-03 Enza Fazio , Fortunato Neri , Salvatore Savasta , Salvatore Spadaro , Sebastiano Trusso

Quaternary chalcogenide compositions have been broadly explored due to their promising potential for various optoelectronic applications. The band structure, density of states and optical properties of CuZn2InS4 and CuZn2GaS4 for kesterite…

Materials Science · Physics 2023-12-29 Anima Ghosh , R. Thangavel

Through a combination of monitoring the Raman spectral characteristics of 2D materials grown on copper catalyst layers, and wafer scale automated detection of the fraction of transferred material, we reproducibly achieve transfers with over…

We investigate a momentum-resolved Raman spectroscopy technique which is able to probe the one-body spectral function and the quasi-particle states of a gas of strongly interacting ultracold atoms. This technique is inspired by…

Quantum Gases · Physics 2009-09-02 Tung-Lam Dao , Iacopo Carusotto , Antoine Georges

Raman scattering on phonon--plasmon coupled modes in high magnetic fields is considered theoretically. The calculations of the dielectric function were performed in the long-wave approximation for the semiclassical and ultra-quantum…

Materials Science · Physics 2007-05-23 L. A. Falkovsky

The Raman spectrum and particularly the Raman scattering intensities of monoclinic $\beta\text{-Ga}_2\text{O}_3$ are investigated by experiment and theory. The low symmetry of $\beta\text{-Ga}_2\text{O}_3$ results in a complex dependence of…

Materials Science · Physics 2017-02-07 Christian Kranert , Chris Sturm , Rüdiger Schmidt-Grund , Marius Grundmann

Monolayers of ReS2 were grown by a chemical vapor deposition technique on SiO2/Si substrates and investigated at room temperature by using micro-Raman, micro-photoluminescence (PL) and absorbance spectroscopies. The Raman scattering…

Materials Science · Physics 2024-04-23 Solomon Ojo , Juwon Onasanya , Morad Benamara , Bothina Hamad , M. O. Manasreh

Frequency-domain two-dimensional Raman signals, which are equivalent to coherent two-dimensional Raman scattering (COTRAS) signals, for liquid water and carbon tetrachloride were calculated using an equilibrium-nonequilibrium hybrid MD…

Chemical Physics · Physics 2016-10-04 Ju-Yeon Jo , Hironobu Ito , Yoshitaka Tanimura

Extensive inelastic neutron scattering measurements of phonons on a single crystal of CaFe2As2 allowed us to establish a fairly complete picture of phonon dispersions in the main symmetry directions. The phonon spectra were also calculated…

Cu-based chalcogenides are promising materials for thin-film solar cells with more than 20% measured cell efficiency. Using first-principles calculations based on density functional theory, the optoelectronic properties of a group of…

Materials Science · Physics 2016-09-21 Nasrin Sarmadian , Rolando Saniz , Bart Partoens , Dirk Lamoen

Signatures of photo-induced superconductivity have been reported in cuprate materials subjected to a coherent phonon drive. A 'cold' superfluid was extracted from the transient Terahertz conductivity and was seen to coexist with 'hot'…

Superconductivity · Physics 2024-07-12 T. -H. Chou , M. Först , M. Fechner , M. Henstridge , S. Roy , M. Buzzi , D. Nicoletti , Y. Liu , S. Nakata , B. Keimer , A. Cavalleri

Charge-density-wave (CDW) order has long been interpreted as arising from a Fermi-surface instability in the parent metallic phase. While phonon-electron coupling has been suggested to influence the formation of CDW order in…

Strongly Correlated Electrons · Physics 2015-04-08 Yuwen Hu , Feipeng Zheng , Xiao Ren , Ji Feng , Yuan Li

We demonstrate enhancements of Raman scattering from graphene on two-dimensional photonic crystals using double resonances, which originate from simultaneous enhancements by a localized guided mode and a cavity mode. By adjusting the…

Mesoscale and Nanoscale Physics · Physics 2018-08-24 W. Gomulya , H. Machiya , K. Kashiwa , T. Inoue , S. Chiashi , S. Maruyama , Y. K. Kato

We report a comparative Raman spectroscopic study of the quasi-one-dimensional charge-density-wave systems \ab (A = K, Rb). The temperature and polarization dependent experiments reveal charge-coupled vibrational Raman features. The…

Strongly Correlated Electrons · Physics 2009-11-13 D. M. Sagar , D. Fausti , S. Yue , C. A. Kuntscher , S. van Smaalen , P. H. M. van Loosdrecht

We report a detailed Raman scattering study of the lattice dynamics in detwinned single crystals of the underdoped high temperature superconductor YBa2Cu3O6+x (x=0.75, 0.6, 0.55 and 0.45). Whereas at room temperature the phonon spectra of…

We treat resonant Raman scattering via the multiphonon exciton transitions in cylindrical quantum dots with a parabolic confinement in the lateral direction and with a finite rectangular interface-barrier confinement in the axial direction.…

Mesoscale and Nanoscale Physics · Physics 2012-05-09 S. N. Klimin , V. M. Fomin , J. T. Devreese , J. -P. Leburton

Raman spectroscopy of crystalline/molecular systems is well backed with quantum chemical calculations and group theory, making it a unique characterization tool. For the "intermediate" case of nanoscale systems, however, the use of Raman…

Chemical Physics · Physics 2017-04-07 Vitaly I. Korepanov , Hiro-o Hamaguchi

Room temperature Raman scattering measurements have been carried out on well characterized samples of MgB2-xCx. The Raman line corresponding to the E2g phonon mode shows progressive hardening from 620 cm-1 in pristine MgB2 to 775 cm-1 in…

Superconductivity · Physics 2009-11-11 T. Sakuntala , A. Bharathi , S. K. Deb , N. Gayathri , C. S. Sundar , Y. Hariharan

Anisotropic two-dimensional (2D) semiconductors recently have emerged as a promising platform for polarization-controlled Raman amplification. In this study, we probe energy-dependent resonant Raman scattering in few layer ReS2 under…

Optics · Physics 2025-07-22 Pritam Das , Devarshi Chakrabarty , Neha Gill , Sajal Dhara