We simulate several methods which could be realized in the laboratory to probe the band excitation energies and the momentum distribution of a Bose-Einstein condensate inside an optical lattice. The values of the excitation energies obtained by the different methods agree within the accuracy of the ...
Probing the energy bands of a Bose-Einstein condensate in an optical lattice We simulate several methods which could be realized in the laboratory to probe the band excitation energies and the momentum distribution of a Bose-Einstei... ML Chiofalo,S Succi,MP Tosi - Physical Review A 被引量:...
Khan, M.A. et al., " Energy Band/Lattice Mismatch Engineering in Quaternary AlInGaN/GaN Heterostructure ", Physica Status Solidi(a), vol. 176, No. 1, 1999, pp. 227-230.M.Asif Khan,J.W.Yang,G Simin,et al.Energy Band/Lattice Mismatch Engineering in Quaternary AlInGaN/GaN Heterostructure...
5.2.2 Band gap energies of semiconductors When light shines on crystalline silicon, electrons within the crystal lattice may be freed. But not all photons, only photons with a certain level of energy can free electrons in the semiconductor material from their atomic bonds to produce an electric ...
perovskitesA mechanism for bilinear interaction between high-frequency light-induced electronic polarization and low-frequency soft lattice polarization is proposed... W Jia,VS Vikhnin,H Liu,... - 《Journal of Luminescence》 被引量: 32发表: 1999年 Band gap engineering strategy via polarization rotat...
An 'Energy Band Diagram' is a graphical representation in semiconductor physics that illustrates the allowed and disallowed bands of energy in a crystal lattice. It shows the energy levels of electrons in the valence band and conduction band, determining the conductivity properties of the material. ...
The band structure of a TiC0.93 crystal has been studied by angle-resolved photoemission. Experiments were carried out on the (100), (110), and (111) surfaces. The bulk band structure of TiC1.0 has been calculated using the linear augmented-plane-wave method, and the results are used to ...
(N=3\)) empty-lattice approximation showing the band gap at first Brillouin zone boundary,\(k=G/2\). (c) Variations of\(\Delta E_0\)and\(\Delta E_{d}\)in terms of the reciprocal lattice vector,\(G=2\pi /a\), where,ais the lattice constant. (d) Variations of\(\Delta E_...
To determine the impact of the Ni-atom on the MoS2 surface, first-principles computations were performed. Further, it was examined for electronic band structure, the pro-jected density of states (PDOS) and Bader charge transfer analyses. ...
In an n-dimensional crystal, an energy band is usually made of several branches which are connected with each other. Accordingly, the Bloch states of wave vector K which are eigenfunctions of a one-electron Hamiltonian H=-螖+V and which ... Cloizeaux,J Des - 《Physical Review》 被引量:...