Magnetic Excitations of Graphene in 8-Spinor Realization of Chiral Model

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Дәйексөз келтіру

Толық мәтін

Аннотация

The simplest scalar chiral model of graphene suggested earlier and based on the SU(2) order parameter is generalized by including 8-spinor field as an additional order parameter for the description of spin (magnetic) excitations in graphene. As an illustration we study the interaction of the graphene layer with the external magnetic field. In the case of the magnetic field parallel to the graphene plane the diamagnetic effect is predicted, that is the weakening of the magnetic intensity in the volume of the material. However, for the case of the magnetic field orthogonal to the graphene plane the strengthening of the magnetic intensity is revealed in the central domain (at small r). Thus, the magnetic properties of the graphene prove to be strongly anisotropic.

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Авторлар туралы

Yu Rybakov

Peoples’ Friendship University of Russia (RUDN University)

Хат алмасуға жауапты Автор.
Email: soliton4@mail.ru

Department of Theoretical Physics and Mechanics

6 Miklukho-Maklaya St., Moscow, 117198, Russian Federation

M Iskandar

Peoples’ Friendship University of Russia (RUDN University)

Email: iskaandanr@gmail.com

Department of Theoretical Physics and Mechanics

6 Miklukho-Maklaya St., Moscow, 117198, Russian Federation

A Ahmed

Peoples’ Friendship University of Russia (RUDN University)

Email: garkuwaz@yahoo.com

Department of Theoretical Physics and Mechanics

6 Miklukho-Maklaya St., Moscow, 117198, Russian Federation

Әдебиет тізімі

  1. K.S. Novoselov, A.K. Geim, S.V. Morozov, D. Jiang, Y. Zhang, S. V. Dubonos, V. Grigorieva, A.A. Firsov, Electric Field Effect in Atomically Thin Carbon Films, Science 306 (2004) 666–669.
  2. A.K. Geim, Graphene: Status and Prospects, Science 324 (2009) 1530–1534.
  3. C. Lee, X. Wei, J.W. Kysar, J. Hone, Measurement of Elastic Properties and Intrinsic Strength of Monolayer Graphene, Science 321 (2008) 385–388.
  4. A.A. Balandin, S. Ghosh, W. Bao, I. Calizo, D. Teweldebrhan, F. Miao, C. N. Lau, Superior Thermal Conductivity of Single-Layer Graphene, Nano Lett. (8) (2008) 902–907.
  5. K.I. Bolotin, K.J. Sikes, Z. Jiang, M. Klima, G. Fudenberg, J. Hone, P. Kim, H.L. Stormer, Ultrahigh Electron Mobility in Suspended Graphene, Solid State Commun. 146 (2008) 351–355.
  6. D.Yu, L. Dai, Self-Assembled Graphene/Carbon Nanotube Hybrid Films for Super-Capacitors, J. Phys. Chem. Lett. 1 (2010) 467–470.
  7. G.W. Semenoff, Condensed-Matter Simulation of a Three-Dimensional Anomaly, Phys. Rev. Lett. 53 (1984) 2449–2452.
  8. Yu.P. Rybakov, On Chiral Model of Graphene, Solid State Phenomena 190 (2012) 59–62.
  9. Yu.P. Rybakov, Spin Excitations in Chiral Model of Graphene, Solid State Phenomena 233–234 (2015) 16–19.
  10. A.M. Kosevich, B.A. Ivanov, A.S. Kovalev, Nonlinear Magnetization Waves. Dynamical and Topological Solitons, Naukova Dumka, Kiev, 1983, in Russian.

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