2011
DOI: 10.1021/nn1024847
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Plasma Excitations in Graphene: Their Spectral Intensity and Temperature Dependence in Magnetic Field

Abstract: In this paper, we calculated the dielectric function, the loss function, the magnetoplasmon dispersion relation and the temperature-induced transitions for graphene in a uniform perpendicular magnetic field B. The calculations were performed using the Peierls tight-binding model to obtain the energy band structure and the random-phase approximation to determine the collective plasma excitation spectrum. The singleparticle and collective excitations have been precisely identified based on the resonant peaks in … Show more

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Cited by 59 publications
(67 citation statements)
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“…17,18 In addition to this electric tuning method, graphene plasmons can also be tuned through magnetic fields. Graphene magnetoplasmons have been studied theoretically in infinite graphene sheets, [19][20][21][22] semi-infinite sheets, 23,24 and finite structures. 25,26 As a linear and gapless energy spectrum, graphene has a different Landau level (LL) distribution compared with a usual 2DES, reading…”
Section: Magneto-optical Conductivities Of Graphenementioning
confidence: 99%
“…17,18 In addition to this electric tuning method, graphene plasmons can also be tuned through magnetic fields. Graphene magnetoplasmons have been studied theoretically in infinite graphene sheets, [19][20][21][22] semi-infinite sheets, 23,24 and finite structures. 25,26 As a linear and gapless energy spectrum, graphene has a different Landau level (LL) distribution compared with a usual 2DES, reading…”
Section: Magneto-optical Conductivities Of Graphenementioning
confidence: 99%
“…Furthermore, it could combine with the single-and many-particle theories to explore the essential physical properties, such as, magneto-optical and Coulomb excitations [39,40].…”
Section: Discussionmentioning
confidence: 99%
“…5). Such a form of dielectric function is utilized in many researches on twodimensional systems, theoretically [31,47,48] and experimentally [49,50,51]. The bare response function χ 0 is given by [46,52]:…”
Section: Methodsmentioning
confidence: 99%
“…This basic property has been widely studied in various low-dimensional systems, e.g., carbon nanotubes [28,29,30], graphene layers [31,32,33,34,35,36,37], and other novel materials [38,39,40]. In monolayer graphene, plasmons (quantized collectiveexcitation modes) hardly exist at low frequencies due to the lack of free carriers.…”
Section: Introductionmentioning
confidence: 99%