[PDF] Top 20 PHONON PHONON INTERACTION IN RAMAN SCATTERING OF GERMANIUM

... 35.552129 305.974876 0.01493903 0.0000016 -0.01175793 -0.00000954 The evaluated values of P,  0 , W, Z, R, and U of table-1 are substituted in eq.(28) to give the Raman spectra with respect to frequency  in ... See full document

... compounds, germanium (Ge) has a larger dielectric constant and then is particularly suitable for photonic crystal ...and Raman scattering is used to study the phonon behavior in these ... See full document

... electron phonon interaction through renormalized mode ...to Raman scattering in comparison to non-diagonal ...electron phonon interaction plays prominent role to give ... See full document

... this interaction would re- sult in an unreasonably long lifetime on the order of two or three orders of magnitude longer than that predicted for the three-phonon ...time-resolved Raman measurements ... See full document

... of Raman Scattering in high temperature Superconductors (HTS) via using the quantum dynamical approach of double time temperature dependent phonon-Green’s ...order Raman scattering, ... See full document

... brations in the large cages due to the asymmetry (ellipsoidal shape) of the cage. The Na vibrations in the symmetric small cages show only one peak at 135 cm − 1 . A detail examina- tion of the PVDOS indicates that, in ... See full document

... viously, the applicability of using the Bloch-Gr¨uneisen theorem for electron-phonon resistivity in metallic NWs of diameter ≥ 15 nm has been established [22]. In prac- tice, however, deviations from Matthiessen’s ... See full document

... Electron-phonon interactions at low temperatures have been extensively studied for almost a century. Advances over the past two decades have allowed us to calculate materials properties related to these ... See full document

... Fig. 5. Sketch of the temperature behavior of the SHA for an ultra-clean sample (skew scattering dominated, left panel) and a dirty one (intrinsic dominated, right panel). The sketch is based on Eq. (4) and built ... See full document

... ceed 5 × 10 17 cm −3 . The transport results of Pettinari et al. [12] are far smaller. Attempting to reconcile the two sets of results, we suggest our larger hole concentrations are due to thicker epitaxial layers. The ... See full document

... on phonon generation and ampli­ fication using techniques such as drift-field pulse (or current-pulse) [Hutson et al (1961)], heat-pulse [von Gutfeld and Nethercot (1964)], electromagnetic radiation [Houck et al ... See full document

... electron-phonon scattering the most damaging effect to charge carrier mobility in MOS structures is scattering at the rough insulator/substrate ...This scattering is particularly dominant at ... See full document

... the phonon bandgaps 关Fig. 4共a兲兴, the distorted acoustic phonon waves 关 ...fined phonon waves 关 Fig. 5 共 b 兲兴 . The phonon bandgaps would not have significant influence on electron transport ... See full document

... Here we propose a relatively simple non-destructive method to probe the TECs of monolayer materials using surface- enhanced Raman spectroscopy (SERS). A strongly coupled metallic nanoparticle (NP) over-layer is ... See full document

... LO phonon, acoustic pho- non, and electron–electron scattering rates as a function of increasing electric ...field. Scattering rates are shown at differ- ent temperatures to determine the conditions ... See full document

... ZT values depend on the geometric parameters a, b, c and d since both the lattice thermal conductivity and the electronic transport coefficients depend on these parameters. The dependence of ZT on the geo- metric ... See full document

... In this paper, we have studied the drag - effect in cylindrical quantum wire with an infinite potential for the case electrons – acoustic phonon scattering. In this case, one dimensional electron systems is ... See full document

... and phonon-phonon scattering rates were calculated with DFPT as it is implemented in Quantum Espresso suite ...of phonon dispersion, phonon velocities and anharmonic phonon ... See full document

... near and below it. This suggests a simple classification of the modes into those in which the displacements of the metal atoms are significant (mainly below the gap) and those where it is predominantly the chalcogens ... See full document

... Let us conclude this Introduction with the organization of the paper. In this work, based on the elastic contin- uum description, we formulate a complete and analytical theory of interacting long-wavelength acoustic ... See full document