Magnetic-field-induced tunneling and minigap transport in double quantum wells

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We review recent theoretical and experimental results on low- temperature tunneling and in-plane transport properties in double quantum wells (DQWs) in an in-plane magnetic field B{parallel}. These properties arise from combined effect of B{parallel}-induced relative displacement of the wave vectors in the two QWs and the interwell tunneling. In weakly coupled DQWs, the tunneling conductance has two sharp maxima as a function of B{parallel}. In strongly coupled DQWs, a partial minigap is formed due to anticrossing of the two QW dispersion curves, yielding sharp B{parallel}-dependent structures in the density of states and in- plane transport properties. Excellent agreement is obtained ... continued below

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6 p.

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Lyo, S.K.; Simmons, J.A.; Harff, N.E.; Eiles, T.M. & Klem, J.F. August 1, 1995.

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We review recent theoretical and experimental results on low- temperature tunneling and in-plane transport properties in double quantum wells (DQWs) in an in-plane magnetic field B{parallel}. These properties arise from combined effect of B{parallel}-induced relative displacement of the wave vectors in the two QWs and the interwell tunneling. In weakly coupled DQWs, the tunneling conductance has two sharp maxima as a function of B{parallel}. In strongly coupled DQWs, a partial minigap is formed due to anticrossing of the two QW dispersion curves, yielding sharp B{parallel}-dependent structures in the density of states and in- plane transport properties. Excellent agreement is obtained between theory and data from GaAs/AlGaAs DQWs.

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6 p.

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OSTI as DE95016402

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  • 22. international symposium on compound semiconductors, Cheju Island (Korea, Republic of), 28 Aug - 2 Sep 1995

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  • Other: DE95016402
  • Report No.: SAND--95-1723C
  • Report No.: CONF-9508144--2
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 100062
  • Archival Resource Key: ark:/67531/metadc621638

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  • August 1, 1995

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  • June 16, 2015, 7:43 a.m.

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  • Feb. 25, 2016, 8:43 p.m.

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Lyo, S.K.; Simmons, J.A.; Harff, N.E.; Eiles, T.M. & Klem, J.F. Magnetic-field-induced tunneling and minigap transport in double quantum wells, article, August 1, 1995; New Mexico. (digital.library.unt.edu/ark:/67531/metadc621638/: accessed November 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.