Electron with arbitrary pseudo-spins in multilayer graphene

doi:10.1088/1674-1056/24/4/048101

Abstract Using the low-energy effective Hamiltonian of the ABC-stacked multilayer graphene, the pseudo-spin coupling to real orbital angular momentum of electrons in multilayer graphene is investigated. We show that the electron wave function in N-layer graphene mimics the behavior of a particle with a spin of N× (ħ/2), where N=1, 2, 3,.... It is said that for N>1 the low-energy effective Hamiltonian for ABC-stacked graphene cannot be used to describe pseudo-spin-1/2 particles. The wave function of electrons in multilayer graphene may behave like fermionic (or bosonic) particle for N being odd (or even). In this paper, we propose a theory of graphene serving as a host material of electrons with arbitrary pseudo-spins tunable by changing the number of graphene layers.

Keywords: multilayer graphene exotic particles particle physics

Received: 22 September 2014
Revised: 13 November 2014
Accepted manuscript online:

PACS:	81.05.ue	(Graphene)
	14.80.Va	(Axions and other Nambu-Goldstone bosons (Majorons, familons, etc.))
	11.30.-j	(Symmetry and conservation laws)

Fund: Project supported by the Kasetsart University Research and Development Institute (KURDI) and Thailand Research Fund (TRF) (Grant No. TRG5780274).

Corresponding Authors: Bumned Soodchomshom
E-mail: Bumned@hotmail.com,fscibns@ku.ac.th

Cite this article:

Worasak Prarokijjak, Bumned Soodchomshom Electron with arbitrary pseudo-spins in multilayer graphene 2015 Chin. Phys. B 24 048101

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