Observation of valence-band Landau-level mixing by resonant magnetotunneling

A. Zaslavsky, D. A. Grützmacher, S. Y. Lin, T. P. Smith, Richard Kiehl, T. O. Sedgwick

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

In magnetotunneling I(V,B) measurements on strained p-type Si/Si1-xGex double-barrier resonant tunneling structures we observe heavy-hole satellite peaks that correspond to tunneling with Δn=1 and 2 changes in the Landau index n. The relative intensity of the satellite peaks excludes scattering as a possible mechanism. We ascribe the Δn=1,2 satellites to elastic tunneling made possible by Landau-level mixing in the valence band predicted by the Luttinger Hamiltonian in a magnetic field. The satellite peak spacing yields the valence-band Landau-level structure in strained Si1-xGex quantum wells.

Original languageEnglish (US)
Pages (from-to)16036-16039
Number of pages4
JournalPhysical Review B
Volume47
Issue number23
DOIs
StatePublished - 1993
Externally publishedYes

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Valence bands
Satellites
valence
Resonant tunneling
Hamiltonians
resonant tunneling
Semiconductor quantum wells
spacing
quantum wells
Scattering
Magnetic fields
scattering
magnetic fields

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Zaslavsky, A., Grützmacher, D. A., Lin, S. Y., Smith, T. P., Kiehl, R., & Sedgwick, T. O. (1993). Observation of valence-band Landau-level mixing by resonant magnetotunneling. Physical Review B, 47(23), 16036-16039. https://doi.org/10.1103/PhysRevB.47.16036

Observation of valence-band Landau-level mixing by resonant magnetotunneling. / Zaslavsky, A.; Grützmacher, D. A.; Lin, S. Y.; Smith, T. P.; Kiehl, Richard; Sedgwick, T. O.

In: Physical Review B, Vol. 47, No. 23, 1993, p. 16036-16039.

Research output: Contribution to journalArticle

Zaslavsky, A, Grützmacher, DA, Lin, SY, Smith, TP, Kiehl, R & Sedgwick, TO 1993, 'Observation of valence-band Landau-level mixing by resonant magnetotunneling', Physical Review B, vol. 47, no. 23, pp. 16036-16039. https://doi.org/10.1103/PhysRevB.47.16036
Zaslavsky, A. ; Grützmacher, D. A. ; Lin, S. Y. ; Smith, T. P. ; Kiehl, Richard ; Sedgwick, T. O. / Observation of valence-band Landau-level mixing by resonant magnetotunneling. In: Physical Review B. 1993 ; Vol. 47, No. 23. pp. 16036-16039.
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