Energy spectrum and optical absorption of superlattices under strong band inversion conditions

B. Laikhtman; S. Suchalkin; G. Belenky; M. Ermolaev

doi:10.1016/j.spmi.2019.03.001

Energy spectrum and optical absorption of superlattices under strong band inversion conditions

B. Laikhtman^*, S. Suchalkin, G. Belenky, M. Ermolaev

^*Corresponding author for this work

Racah Institute of Physics

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

3 Scopus citations

Abstract

We show that in superlattices with a strong band inversion no hybridization gap exists. There are two points where the bands are crossing and the spectrum has a shape of Dirac cones. Due to the absence of the hybridization gap the optical absorption does not have a threshold and goes to zero gradually with the decrease of optical energy.

Original language	English
Pages (from-to)	438-442
Number of pages	5
Journal	Superlattices and Microstructures
Volume	128
DOIs	https://doi.org/10.1016/j.spmi.2019.03.001
State	Published - Apr 2019

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© 2019 Elsevier Ltd

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title = "Energy spectrum and optical absorption of superlattices under strong band inversion conditions",

abstract = "We show that in superlattices with a strong band inversion no hybridization gap exists. There are two points where the bands are crossing and the spectrum has a shape of Dirac cones. Due to the absence of the hybridization gap the optical absorption does not have a threshold and goes to zero gradually with the decrease of optical energy.",

author = "B. Laikhtman and S. Suchalkin and G. Belenky and M. Ermolaev",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

year = "2019",

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doi = "10.1016/j.spmi.2019.03.001",

language = "אנגלית",

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AU - Laikhtman, B.

AU - Suchalkin, S.

AU - Belenky, G.

AU - Ermolaev, M.

PY - 2019/4

Y1 - 2019/4

N2 - We show that in superlattices with a strong band inversion no hybridization gap exists. There are two points where the bands are crossing and the spectrum has a shape of Dirac cones. Due to the absence of the hybridization gap the optical absorption does not have a threshold and goes to zero gradually with the decrease of optical energy.

AB - We show that in superlattices with a strong band inversion no hybridization gap exists. There are two points where the bands are crossing and the spectrum has a shape of Dirac cones. Due to the absence of the hybridization gap the optical absorption does not have a threshold and goes to zero gradually with the decrease of optical energy.

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AN - SCOPUS:85063114408

SN - 0749-6036

VL - 128

SP - 438

EP - 442

JO - Superlattices and Microstructures

JF - Superlattices and Microstructures

ER -

Energy spectrum and optical absorption of superlattices under strong band inversion conditions

Abstract

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