Transmission spectra of ordered and disordered GaAs/Al0.3Ga0.7As superlattices (SL) were measured at 2 K. The experimental results are compared with numerical simulations obtained by means of a transfer matrix method. The numerical results indicate that a multiple-quantum-well model accounts for the main features of random SL, and that a disorder-induced fine structure is present. The agreement between the measured spectra and the numerical calculations supports the predicted features.
Title
Absorption spectra of GaAs/Al-x Ga1-xAs random superlattices at 2 K
Published in
Physical Review B
Volume
53
Issue
3
Pages
1018-1021
Date
1996
ISSN
0163-1829
Note
Ist nazl fis mat,unita bari,bari,italy. ecole polytech fed lausanne,inst appl phys,ch-1015 lausanne,switzerland. univ geneva,appl phys grp,ch-1211 geneva 4,switzerland. ecole polytech fed lausanne,inst microoptoelectr,ch-1015 lausanne,switzerland. ecole polytech fed lausanne,inst genie atom,ch-1015 lausanne,switzerland. Lorusso, GF, UNIV BARI,DIPARTIMENTO FIS,VIA AMENDOLA 173,I-70126 BARI,ITALY.
ISI Document Delivery No.: TU290
Cited Reference Count: 18
Cited References:
ANDERSON PW, 1958, PHYS REV, V109, P1492
ANDREANI LC, 1990, PHYS REV B, V42, P8928
BLEUSE J, 1988, PHYS REV LETT, V60, P220
BOSIO C, 1988, PHYS REV B, V38, P3263
CAPOZZI V, 1991, I PHYS C SER, V123, P195
CHEN XS, 1993, PHYS REV B, V47, P7146
CHEN XS, 1993, PHYS REV B, V48, P5273
CHOMETTE A, 1986, PHYS REV LETT, V57, P1464
DOW J, 1982, PHYS REV B, V25, P6218
FORNEY JJ, 1977, J PHYS C SOLID STATE, V10, P1887
GUZZI M, 1989, SOLID STATE PHENOM, V10, P22
HALPERIN BI, 1967, ADV CHEM PHYS, V13, P123
KOHMOTO M, 1986, PHYS REV B, V34, P5043
LEPORE JJ, 1980, J APPL PHYS, V51, P6441
PAVESI L, 1989, PHYS REV B, V39, P7788
TUNCEL E, 1988, PHYS REV B, V38, P1597
YAMAMOTO T, 1990, J APPL PHYS, V68, P5318
YU J, 1984, J APPL PHYS, V56, P1895
Record creation date
2007-08-31
