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 language | English (US) |
|---|---|
| Pages (from-to) | 16036-16039 |
| Number of pages | 4 |
| Journal | Physical Review B |
| Volume | 47 |
| Issue number | 23 |
| DOIs | |
| State | Published - Jan 1 1993 |
| Externally published | Yes |
ASJC Scopus subject areas
- Condensed Matter Physics
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Zaslavsky, A., Grützmacher, D. A., Lin, S. Y., Smith, T. P., Kiehl, R. A., & 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