Electron with arbitrary pseudo-spins in multilayer graphene

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

›› 2015, Vol. 24 ›› Issue (4): 48101-048101.doi: 10.1088/1674-1056/24/4/048101

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇下一篇

Electron with arbitrary pseudo-spins in multilayer graphene

Worasak Prarokijjak, Bumned Soodchomshom

Department of Physics, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand

收稿日期:2014-09-22 修回日期:2014-11-13 出版日期:2015-04-05 发布日期:2015-04-05
基金资助:
Project supported by the Kasetsart University Research and Development Institute (KURDI) and Thailand Research Fund (TRF) (Grant No. TRG5780274).

Electron with arbitrary pseudo-spins in multilayer graphene

Worasak Prarokijjak, Bumned Soodchomshom

Department of Physics, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand

Received:2014-09-22 Revised:2014-11-13 Online:2015-04-05 Published:2015-04-05
Contact: Bumned Soodchomshom E-mail:Bumned@hotmail.com,fscibns@ku.ac.th
Supported by:
Project supported by the Kasetsart University Research and Development Institute (KURDI) and Thailand Research Fund (TRF) (Grant No. TRG5780274).

摘要/Abstract

摘要： 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.

关键词: multilayer graphene, exotic particles, particle physics

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.

Key words: multilayer graphene, exotic particles, particle physics

中图分类号: (Graphene)

81.05.ue

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

Worasak Prarokijjak, Bumned Soodchomshom. Electron with arbitrary pseudo-spins in multilayer graphene[J]. , 2015, 24(4): 48101-048101.

Worasak Prarokijjak, Bumned Soodchomshom. Electron with arbitrary pseudo-spins in multilayer graphene[J]. Chin. Phys. B, 2015, 24(4): 48101-048101.

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Electron with arbitrary pseudo-spins in multilayer graphene

Electron with arbitrary pseudo-spins in multilayer graphene

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