Valence-band-shape modification due to band coupling in strained quantum wells

L. Viña; L. Muñoz; N. Mestres; E. S. Koteles; A. Ghiti; E. P. O'Reilly; D. C. Bertolet; K. M. Lau

doi:10.1103/PhysRevB.47.13926

Valence-band-shape modification due to band coupling in strained quantum wells

L. Viña^*, L. Muñoz, N. Mestres, E. S. Koteles, A. Ghiti, E. P. O'Reilly, D. C. Bertolet, K. M. Lau

^*Corresponding author for this work

Research output: Contribution to journal › Journal Article › peer-review

16 Citations (Scopus)

Abstract

We have observed the strong dependence of the in-plane effective masses of the heavy-hole and light-hole valence bands in quantum wells on their coupling. The magnitude of this interaction, which is a function of the energy separation of the two bands, was tuned by adjusting the magnitude of tensile strain and well width in GaAs1-yPy/Al0.35Ga0.65As quantum wells. A distinct increase of both the heavy- and light-hole masses is observed when the bands merge at k=0, consistent with theoretical predictions.

Original language	English
Pages (from-to)	13926-13929
Number of pages	4
Journal	Physical Review B
Volume	47
Issue number	20
DOIs	https://doi.org/10.1103/PhysRevB.47.13926
Publication status	Published - 1993
Externally published	Yes

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10.1103/PhysRevB.47.13926

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title = "Valence-band-shape modification due to band coupling in strained quantum wells",

abstract = "We have observed the strong dependence of the in-plane effective masses of the heavy-hole and light-hole valence bands in quantum wells on their coupling. The magnitude of this interaction, which is a function of the energy separation of the two bands, was tuned by adjusting the magnitude of tensile strain and well width in GaAs1-yPy/Al0.35Ga0.65As quantum wells. A distinct increase of both the heavy- and light-hole masses is observed when the bands merge at k=0, consistent with theoretical predictions.",

author = "L. Vi{\~n}a and L. Mu{\~n}oz and N. Mestres and Koteles, \{E. S.\} and A. Ghiti and O'Reilly, \{E. P.\} and Bertolet, \{D. C.\} and Lau, \{K. M.\}",

year = "1993",

doi = "10.1103/PhysRevB.47.13926",

language = "English",

volume = "47",

pages = "13926--13929",

journal = "Physical Review B",

issn = "0163-1829",

publisher = "American Physical Society",

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T1 - Valence-band-shape modification due to band coupling in strained quantum wells

AU - Viña, L.

AU - Muñoz, L.

AU - Mestres, N.

AU - Koteles, E. S.

AU - Ghiti, A.

AU - O'Reilly, E. P.

AU - Bertolet, D. C.

AU - Lau, K. M.

PY - 1993

Y1 - 1993

N2 - We have observed the strong dependence of the in-plane effective masses of the heavy-hole and light-hole valence bands in quantum wells on their coupling. The magnitude of this interaction, which is a function of the energy separation of the two bands, was tuned by adjusting the magnitude of tensile strain and well width in GaAs1-yPy/Al0.35Ga0.65As quantum wells. A distinct increase of both the heavy- and light-hole masses is observed when the bands merge at k=0, consistent with theoretical predictions.

AB - We have observed the strong dependence of the in-plane effective masses of the heavy-hole and light-hole valence bands in quantum wells on their coupling. The magnitude of this interaction, which is a function of the energy separation of the two bands, was tuned by adjusting the magnitude of tensile strain and well width in GaAs1-yPy/Al0.35Ga0.65As quantum wells. A distinct increase of both the heavy- and light-hole masses is observed when the bands merge at k=0, consistent with theoretical predictions.

UR - https://www.webofscience.com/wos/woscc/full-record/WOS:A1993LF06900116

UR - https://openalex.org/W2013201649

UR - https://www.scopus.com/pages/publications/0039462833

U2 - 10.1103/PhysRevB.47.13926

DO - 10.1103/PhysRevB.47.13926

M3 - Journal Article

SN - 0163-1829

VL - 47

SP - 13926

EP - 13929

JO - Physical Review B

JF - Physical Review B

IS - 20

ER -

Valence-band-shape modification due to band coupling in strained quantum wells

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