Temperature dependence of the electronic coherence of GaAs-GaAlAs superlattices

DOI PDF 被引用文献3件
  • E. E. Mendez
    IBM Research Division, T. J. Watson Research Center, P.O. Box 218, Yorktown Heights, New York 10598
  • F. Agulló-Rueda
    IBM Research Division, T. J. Watson Research Center, P.O. Box 218, Yorktown Heights, New York 10598
  • J. M. Hong
    IBM Research Division, T. J. Watson Research Center, P.O. Box 218, Yorktown Heights, New York 10598

書誌事項

公開日
1990-06-18
DOI
  • 10.1063/1.102882
公開者
AIP Publishing

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<jats:p>We have shown that the coherence length of electrons in a 55-Å-period GaAs-GaAlAs superlattice does not depend strongly on temperature in the range 5–292 K, varying from 17 periods at 5 K to a minimum of nine periods at room temperature. The quantum coherence was determined by photocurrent spectroscopy experiments that exploit the formation of Stark ladders in superlattices under electric fields.</jats:p>

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