Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Wannier equation"'
Publikováno v:
Henriques, J C G, Mortensen, N A & Peres, N M R 2021, ' Analytical description of the 1s exciton linewidth temperature dependence in transition metal dichalcogenides ', Physical Review B, vol. 103, no. 23, 235402 . https://doi.org/10.1103/PhysRevB.103.235402
Physical Review B
Physical Review B
We obtain an analytical expression for the linewidth of the 1s exciton as a function of temperature in transition metal dichalcogenides. The total linewidth, as a function of temperature, is dominated by three contributions: (i) the radiative decay (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cefc7fc6c518741e8c4437867829c894
http://arxiv.org/abs/2104.03747
http://arxiv.org/abs/2104.03747
Autor:
J. C. G. Henriques, Nuno M. R. Peres
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
The European Physical Journal B
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
The European Physical Journal B
In this paper we revisit the work of Miller and Good, which describes an uniform JWKB type of approximation to the solution of quantum problems. This paper, very well known in atomic physics in the 1970's 1980's of the last century, did not attract t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::354dcf708bf6214c1fa98e7832895135
https://doi.org/10.1140/epjb/s10051-020-00014-6
https://doi.org/10.1140/epjb/s10051-020-00014-6
Autor:
H. V. Duque, Darryl Jones, M. C. A. Lopes, Michael J. Brunger, W.A.D. Pires, R. F. C. Neves, Kate Nixon
Publikováno v:
International Journal of Mass Spectrometry. 404:48-59
Electron impact ionisation and dissociative ionisation of the two smallest primary alcohols have been investigated. A quadrupole mass spectrometer was used, with an internal ionising electron source resulting in an energy resolution of ∼0.8 eV. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a330add0dd27b2342d03c8124c71f0c1
https://doi.org/10.1016/j.ijms.2016.05.006
https://doi.org/10.1016/j.ijms.2016.05.006
Publikováno v:
physica status solidi (b). 257:2000223
Optical properties of transition metal dichalcogenide (TMD) monolayers are dominated by excitonic effects. These are significantly altered at high carrier densities, leading to energy renormalization, absorption bleaching, and even optical gain. Such
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a29a8e826f472e987cdd5fb34520adb
https://doi.org/10.1002/pssb.202000223
https://doi.org/10.1002/pssb.202000223
Autor:
Andrea Sacchetti
In this paper we consider stationary solutions to the nonlinear one-dimensional Schroedinger equation with a periodic potential and a Stark-type perturbation. In the limit of large periodic potential the Stark-Wannier ladders of the linear equation b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7f6c05185b1a78b0368a02e54504e09
https://hdl.handle.net/11380/1168217
https://hdl.handle.net/11380/1168217
Autor:
Gunnar Berghäuser, Maja Feierabend, Andreas Knorr, Dominik Christiansen, Ermin Malic, Samuel Brem, Florian Wendler, Malte Selig
Publikováno v:
Physical Review Materials
Physical Review Materials vol.2(2018)
Physical Review Materials vol.2(2018)
Monolayer transition metal dichalcogenides (TMDs) exhibit a remarkably strong Coulomb interaction that manifests in tightly bound excitons. Due to the complex electronic band structure exhibiting several spin-split valleys in the conduction and valen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13cf2cc51359d88ff47947b00b697da1
Publikováno v:
Communications in Computational Physics. 14:21-47
A novel adaptive approach to compute the eigenenergies and eigenfunctions of the two-particle (electron-hole) Schrödinger equation including Coulomb attraction is presented. As an example, we analyze the energetically lowest exciton state of a thin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c57948eea432ae2d11db58a1c363eb5a
https://doi.org/10.4208/cicp.081011.260712a
https://doi.org/10.4208/cicp.081011.260712a
Publikováno v:
Journal of Luminescence. 131:2153-2159
Based on the pseudopotential method under the virtual crystal approximation that takes into account the effect of compositional disorder, the electron and heavy-hole effective masses and the dielectric constants in GaxIn1−xAs (0≤x≤1) have been
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74df2ec12014b2f7c53aa99d5cc7cddc
https://doi.org/10.1016/j.jlumin.2011.05.024
https://doi.org/10.1016/j.jlumin.2011.05.024
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 40:1401-1403
Optical spectra of low-density exciton gas in a quasi-one-dimensional (q1D) semiconductor are investigated by solving self-consistently an effective Wannier equation which describes an optically created exciton embedded in the exciton gas. It turned
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e73d967a7162df54250bf3c72613d3e
https://doi.org/10.1016/j.physe.2007.09.023
https://doi.org/10.1016/j.physe.2007.09.023
A microscopic approach is developed to determine the excitation energetics of highly correlated quasi-particles in optically excited semiconductors based entirely on a pair-correlation function input. For this purpose, the Wannier equation is general
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9fae95ec8bd2c0c6df8004ea130e82d4
http://arxiv.org/abs/1307.7599
http://arxiv.org/abs/1307.7599