Position-dependent mass with modulated velocity in 1-D heterostructures

R. Valencia-Torres; J. Avendaño; J. García-Ravelo; E. Choreño

doi:10.1088/1402-4896/ac8f72

Position-dependent mass with modulated velocity in 1-D heterostructures

R. Valencia-Torres, J. Avendaño, J. García-Ravelo, E. Choreño

Escuela Superior de Física y Matemáticas (ESFM)

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

2 Scopus citations

Abstract

We study the (1+1)-dimensional Dirac equation for charge carriers in some heterostructures. Both, the mass profile and the modulated Fermi velocity of the quasi-particle, are considered position dependent. We have used mass and Fermi velocity that admit only approximate analytical solutions. However, we also calculate numerically the exact energy spectra of each heterostructure through the corresponding reflection coefficient poles.

Translated title of the contribution	Masa dependiente de la posición con velocidad modulada en heteroestructuras 1-D
Original language	English
Article number	105306
Journal	Physica Scripta
Volume	97
Issue number	10
DOIs	https://doi.org/10.1088/1402-4896/ac8f72
State	Published - 1 Oct 2022

Keywords

dirac equation
fermi velocity
graphene
heterostructure
position-depend mass

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10.1088/1402-4896/ac8f72

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AU - García-Ravelo, J.

AU - Choreño, E.

PY - 2022/10/1

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N2 - We study the (1+1)-dimensional Dirac equation for charge carriers in some heterostructures. Both, the mass profile and the modulated Fermi velocity of the quasi-particle, are considered position dependent. We have used mass and Fermi velocity that admit only approximate analytical solutions. However, we also calculate numerically the exact energy spectra of each heterostructure through the corresponding reflection coefficient poles.

AB - We study the (1+1)-dimensional Dirac equation for charge carriers in some heterostructures. Both, the mass profile and the modulated Fermi velocity of the quasi-particle, are considered position dependent. We have used mass and Fermi velocity that admit only approximate analytical solutions. However, we also calculate numerically the exact energy spectra of each heterostructure through the corresponding reflection coefficient poles.

KW - dirac equation

KW - fermi velocity

KW - graphene

KW - heterostructure

KW - position-depend mass

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Position-dependent mass with modulated velocity in 1-D heterostructures

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Keywords

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