Pseudo-magnetic fields of strongly-curved graphene nanobubbles

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We use the π-orbital axis vector (POAV) analysis to deal with large curvature effect of graphene in the tight-binding model. To test the validities of pseudo-magnetic fields (PMFs) derived from the tight-binding model and the model with Dirac equation coupled to a curved surface, we propose two types of spatially constant-field topographies for strongly-curved graphene nanobubbles, which correspond to these two models, respectively. It is shown from the latter model that the PMF induced by any spherical graphene nanobubble is always equivalent to the magnetic field caused by one magnetic monopole charge distributed on a complete spherical surface with the same radius. Such a PMF might be attributed to the isometry breaking of a graphene layer attached conformably to a spherical substrate with adhesion.

Original languageEnglish
Article number1850137
JournalInternational Journal of Modern Physics B
Volume32
Issue number11
DOIs
Publication statusPublished - 2018 Apr 30

Fingerprint

graphene
magnetic fields
vector analysis
magnetic monopoles
curved surfaces
Dirac equation
topography
adhesion
curvature
orbitals
radii

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Condensed Matter Physics

Cite this

@article{258bf0e4de524ed3b916f6c0b9a45145,
title = "Pseudo-magnetic fields of strongly-curved graphene nanobubbles",
abstract = "We use the π-orbital axis vector (POAV) analysis to deal with large curvature effect of graphene in the tight-binding model. To test the validities of pseudo-magnetic fields (PMFs) derived from the tight-binding model and the model with Dirac equation coupled to a curved surface, we propose two types of spatially constant-field topographies for strongly-curved graphene nanobubbles, which correspond to these two models, respectively. It is shown from the latter model that the PMF induced by any spherical graphene nanobubble is always equivalent to the magnetic field caused by one magnetic monopole charge distributed on a complete spherical surface with the same radius. Such a PMF might be attributed to the isometry breaking of a graphene layer attached conformably to a spherical substrate with adhesion.",
author = "Li-Chi Liu",
year = "2018",
month = "4",
day = "30",
doi = "10.1142/S0217979218501370",
language = "English",
volume = "32",
journal = "International Journal of Modern Physics B",
issn = "0217-9792",
publisher = "World Scientific Publishing Co. Pte Ltd",
number = "11",

}

Pseudo-magnetic fields of strongly-curved graphene nanobubbles. / Liu, Li-Chi.

In: International Journal of Modern Physics B, Vol. 32, No. 11, 1850137, 30.04.2018.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Pseudo-magnetic fields of strongly-curved graphene nanobubbles

AU - Liu, Li-Chi

PY - 2018/4/30

Y1 - 2018/4/30

N2 - We use the π-orbital axis vector (POAV) analysis to deal with large curvature effect of graphene in the tight-binding model. To test the validities of pseudo-magnetic fields (PMFs) derived from the tight-binding model and the model with Dirac equation coupled to a curved surface, we propose two types of spatially constant-field topographies for strongly-curved graphene nanobubbles, which correspond to these two models, respectively. It is shown from the latter model that the PMF induced by any spherical graphene nanobubble is always equivalent to the magnetic field caused by one magnetic monopole charge distributed on a complete spherical surface with the same radius. Such a PMF might be attributed to the isometry breaking of a graphene layer attached conformably to a spherical substrate with adhesion.

AB - We use the π-orbital axis vector (POAV) analysis to deal with large curvature effect of graphene in the tight-binding model. To test the validities of pseudo-magnetic fields (PMFs) derived from the tight-binding model and the model with Dirac equation coupled to a curved surface, we propose two types of spatially constant-field topographies for strongly-curved graphene nanobubbles, which correspond to these two models, respectively. It is shown from the latter model that the PMF induced by any spherical graphene nanobubble is always equivalent to the magnetic field caused by one magnetic monopole charge distributed on a complete spherical surface with the same radius. Such a PMF might be attributed to the isometry breaking of a graphene layer attached conformably to a spherical substrate with adhesion.

UR - http://www.scopus.com/inward/record.url?scp=85042739961&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85042739961&partnerID=8YFLogxK

U2 - 10.1142/S0217979218501370

DO - 10.1142/S0217979218501370

M3 - Article

VL - 32

JO - International Journal of Modern Physics B

JF - International Journal of Modern Physics B

SN - 0217-9792

IS - 11

M1 - 1850137

ER -