Comment on "Analytic model of the energy spectrum of a graphene quantum dot in a perpendicular magnetic field"

TL;DR

This paper critiques a previous analytical model of graphene quantum dot energy spectra in magnetic fields, providing corrected results and highlighting inaccuracies in the original equations.

Contribution

It offers revised analytical results for the energy spectrum of graphene quantum dots, correcting prior inaccuracies in the existing model.

Findings

Original equations (5), (6), and (11) are unreliable

Provides corrected analytical expressions

Highlights errors in previous work

Abstract

In recent work by Schnez et al. [PRB 78, 195427 (2008)], they studied the analytical model of the energy spectrum of a graphene quantum dot in a perpendicular magnetic field. In this comment we first point out that the results Eqs.(5), (6) and (11) presented by them in [1] are not reliable and then give our results.