Electronic spectra and mobility edges in a one-dimensional incommensurate model

Autor:	Zheng Zhao-bo, Zhu Kai
Rok vydání:	1986
Předmět:	Physics Condensed matter physics Lattice (order) General Engineering General Physics and Astronomy Electronic density of states Eigenfunction Condensed Matter Physics Spectral line Eigenvalues and eigenvectors
Zdroj:	Journal of Physics C: Solid State Physics. 19:L695-L698
ISSN:	0022-3719
DOI:	10.1088/0022-3719/19/30/002
Popis:	Numerical studies on the one-dimensional lattice with incommensurate potentials En=1.9(cos(0.7n)+1/3cos(1.4n)) are performed. Fine structures of electronic density of states are shown. Mobility edges with precise positions are found and the nature of the eigenstates is discussed. From the eigenfunctions calculation, the authors also reveal that the 'resonant states' evolve to extended states gradually as the energy increases from the bottom of the spectrum.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9a0a067fc253480cb3cb8c8f6dcb0ec9 https://doi.org/10.1088/0022-3719/19/30/002 Zobrazit plný text záznamu