Infoscience

Journal article

Absorption spectra of GaAs/Al-x Ga1-xAs random superlattices at 2 K

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.

    Keywords: DISTRIBUTED LAYER THICKNESSES ; OPTICAL-PROPERTIES ; LOCALIZATION ; ALXGA1-XAS ; DISORDER ; EXCITONS ; STATES

    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

    Times Cited: 14

    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

    Reference

    Record created on 2007-08-31, modified on 2016-08-08

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