Composite fermions in 2 {times} 10{sup 6} cm{sup 2}/Vs mobility AlGaAs/GaAs heterostructures grown by MOCVD

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The authors report on the recent growth by MOCVD of 2.0 {times} 106 cm2/Vs mobility heterostructures. These mobilities, the highest reported to date, are attributed to the use of tertiarybutylarsine as the arsenic precursor. Measurements in tilted magnetic fields of the fractional quantum Hall effect (FQHE) states near filling factor 3/2 are consistent with a spin-split composite fermion (CF) model proposed earlier. The extracted values of the product of the CF g-factor and CF effective mass agree with values previously obtained for MBE samples.

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5 p.

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Simmons, J.A.; Chui, H.C.; Harff, N.E.; Hammons, B.E.; Du, R.R. & Zudov, M.A. August 1, 1996.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

The authors report on the recent growth by MOCVD of 2.0 {times} 106 cm2/Vs mobility heterostructures. These mobilities, the highest reported to date, are attributed to the use of tertiarybutylarsine as the arsenic precursor. Measurements in tilted magnetic fields of the fractional quantum Hall effect (FQHE) states near filling factor 3/2 are consistent with a spin-split composite fermion (CF) model proposed earlier. The extracted values of the product of the CF g-factor and CF effective mass agree with values previously obtained for MBE samples.

Physical Description

5 p.

Notes

OSTI as DE96013401

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  • International conference on physics of semiconductors, Berlin (Germany), 21-26 Jul 1996

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  • Other: DE96013401
  • Report No.: SAND--96-0624C
  • Report No.: CONF-960781--2
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/270799 | External Link
  • Office of Scientific & Technical Information Report Number: 270799
  • Archival Resource Key: ark:/67531/metadc672864

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  • August 1, 1996

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • April 13, 2016, 1:10 p.m.

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Simmons, J.A.; Chui, H.C.; Harff, N.E.; Hammons, B.E.; Du, R.R. & Zudov, M.A. Composite fermions in 2 {times} 10{sup 6} cm{sup 2}/Vs mobility AlGaAs/GaAs heterostructures grown by MOCVD, report, August 1, 1996; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc672864/: accessed December 15, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.