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 - 1993 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
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 journal › Article
}
TY - JOUR
T1 - Observation of valence-band Landau-level mixing by resonant magnetotunneling
AU - Zaslavsky, A.
AU - Grützmacher, D. A.
AU - Lin, S. Y.
AU - Smith, T. P.
AU - Kiehl, Richard
AU - Sedgwick, T. O.
PY - 1993
Y1 - 1993
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevB.47.16036
DO - 10.1103/PhysRevB.47.16036
M3 - Article
VL - 47
SP - 16036
EP - 16039
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 23
ER -