Effects of Boron Doping on the Bulk and Surface Acoustic Phonons in Single-Crystal Diamond.
Sign Up to like & getrecommendations! Published in 2022 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.2c10879
Abstract: We report the results of the investigation of bulk and surface acoustic phonons in the undoped and boron-doped single-crystal diamond films using the Brillouin-Mandelstam light scattering spectroscopy. The evolution of the optical phonons in the… read more here.
Keywords: bulk surface; spectroscopy; boron doping; acoustic phonons ... See more keywords
Cross-plane coherent acoustic phonons in two-dimensional organic-inorganic hybrid perovskites
Sign Up to like & getrecommendations! Published in 2018 at "Nature Communications"
DOI: 10.1038/s41467-018-04429-9
Abstract: Two-dimensional Ruddlesden–Popper organic–inorganic hybrid layered perovskites (2D RPs) are solution-grown semiconductors with prospective applications in next-generation optoelectronics. The heat-carrying, low-energy acoustic phonons, which are important for heat management of 2D RP-based devices, have remained unexplored.… read more here.
Keywords: cross plane; acoustic phonons; organic inorganic; dimensional organic ... See more keywords
Excitation and detection of acoustic phonons in nanoscale systems.
Sign Up to like & getrecommendations! Published in 2022 at "Nanoscale"
DOI: 10.1039/d2nr04100f
Abstract: Phonons play a key role in the physical properties of materials, and have long been a topic of study in physics. While the effects of phonons had historically been considered to be a hindrance, modern… read more here.
Keywords: acoustic phonons; excitation detection; phonons nanoscale; detection acoustic ... See more keywords
Theory of the shear acoustic phonons spectrum and their interaction with electrons due to the piezoelectric potential in AlN/GaN nanostructures of plane symmetry
Sign Up to like & getrecommendations! Published in 2021 at "Low Temperature Physics"
DOI: 10.1063/10.0003176
Abstract: Using the models of elastic and dielectric continuum, the system of differential equations is obtained, the exact analytical solutions of which describe the elastic displacement of the medium for nitride-based semiconductor nanostructure and the piezoelectric… read more here.
Keywords: acoustic phonons; piezoelectric potential; phonons spectrum; shear acoustic ... See more keywords
Phase control of coherent acoustic phonons in gold bipyramids for optical memory and manipulating plasmon–exciton coupling
Sign Up to like & getrecommendations! Published in 2020 at "Applied Physics Letters"
DOI: 10.1063/5.0004209
Abstract: Recent efforts have targeted manipulation of nanomaterial vibrational modes in applications such as chemical/mass sensing, optical switching, and phonon-driven photochemistry. While impulsive photoexcitation can generate coherent phonons, multiple excitation pulses offer the prospect of control… read more here.
Keywords: plasmon exciton; acoustic phonons; optical memory; gold bipyramids ... See more keywords
Generation and coherent control of terahertz acoustic phonons in superlattices of perovskite oxides
Sign Up to like & getrecommendations! Published in 2021 at "New Journal of Physics"
DOI: 10.1088/1367-2630/abf86e
Abstract: We utilized transmission-type pump–probe technique to investigate coherent acoustic phonons in the superlattices of perovskite oxides such as SrIrO3/SrTiO3 and SrRuO3/SrTiO3. Because the films in the superlattices are of high-quality and their thicknesses are only… read more here.
Keywords: superlattices perovskite; acoustic phonons; coherent; coherent acoustic ... See more keywords
Piezoelectric Response to Coherent Longitudinal and Transverse Acoustic Phonons in a Semiconductor Schottky Diode
Sign Up to like & getrecommendations! Published in 2017 at "Physical review applied"
DOI: 10.1103/physrevapplied.7.024014
Abstract: We study the generation of microwave electronic signals by pumping a (311) GaAs Schottky diode with compressive and shear acoustic phonons, generated by femtosecond optical excitation of an Al _lm transducer and mode conversion at… read more here.
Keywords: response coherent; schottky diode; acoustic phonons; schottky ... See more keywords
Dynamic Spin-Lattice Coupling and Nematic Fluctuations in NaFeAs
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review X"
DOI: 10.1103/physrevx.8.021056
Abstract: We use inelastic neutron scattering to study acoustic phonons and spin excitations in single crystals of NaFeAs, a parent compound of iron pnictide superconductors. NaFeAs exhibits a tetragonal-to-orthorhombic structural transition at $T_s\approx 58$ K and… read more here.
Keywords: lattice coupling; coupling nematic; acoustic phonons; spin lattice ... See more keywords
Terahertz radiation from propagating acoustic phonons based on deformation potential coupling.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.460471
Abstract: We report on new THz electromagnetic emission mechanism from deformational coupling of acoustic (AC) phonons with electrons in the propagation medium of non-polar Si. The epicenters of the AC phonon pulses are the surface and… read more here.
Keywords: radiation propagating; deformation; propagating acoustic; terahertz radiation ... See more keywords
Acoustic phonons in nanowires probed by ultrafast pump-probe spectroscopy
Sign Up to like & getrecommendations! Published in 2018 at "Nanophotonics"
DOI: 10.1515/nanoph-2018-0069
Abstract: Abstract The fascinating relationship between structure and property in nanowires has enabled a wealth of applications in photonics and electronics. The behavior of phonons in nanowires is also modified compared to their bulk counterparts. In… read more here.
Keywords: acoustic phonons; nanowires probed; ultrafast pump; phonons nanowires ... See more keywords