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 language | English |
|---|---|
| Article number | 1850137 |
| Journal | International Journal of Modern Physics B |
| Volume | 32 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2018 Apr 30 |
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All Science Journal Classification (ASJC) codes
- Statistical and Nonlinear Physics
- Condensed Matter Physics
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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 journal › Article
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 -