We report the first experimental evidence of the existence of extended states in one-dimensional random potentials. Our results are obtained by investigating photoconductivity and optical absorption of GaAs/(AlGa)As disordered superlattices. The experimental results agree with the numerical and analytical predictions, thus indicating the possibility to design narrow bands of extended states at selected energies in disordered superlattices. (C) 1997 Elsevier Science Ltd.
Title
Extended states in one-dimensional random potential
Published in
Solid State Communications
Volume
103
Issue
1
Pages
15-18
Date
1997
ISSN
0038-1098
Note
Univ bari,dipartimento fis,i-70126 bari,italy. ist nazl fis mat,unita bari,i-70126 bari,italy. ecole polytech fed lausanne,inst micro & optoelect,ch-1015 lausanne,switzerland. Lorusso, GF, ECOLE POLYTECH FED LAUSANNE,INST PHYS APPL,CH-1015 LAUSANNE,SWITZERLAND.
ISI Document Delivery No.: XD541
Cited Reference Count: 15
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Record creation date
2007-08-31
