Ferromagnetism in Graphen and Fulleren Nanostructures. Theory, Modelling, Experiment

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  • Authors: Grachev DD1, Rybakov YP2, Sevastianov LA2, Sheka EF2
  • Affiliations:
    1. Russian Аssociation of Manufacturers of Television Technics
    2. Peoples Friendship University of Russia
  • Issue: No 1 (2010)
  • Pages: 20-27
  • Section: Articles
  • URL: http://journals.rudn.ru/miph/article/view/8550
  • Cite item

Abstract


This work is devoted to the construction of the quantum field model, allowing, in particular, to describe ferromagnetic properties in graphen structures adequately to the results of physical and numerical experiments.
The offered model describes properties of monoatom graphen layers ( forming two-dimensional surfaces), which are connected with presence of nontrivial function of distribution of the spin density, formed as a result of spontaneous breakdown of the spin symmetry of valent electrons in atoms of carbon.
Within the limits of the offered model possible exact solutions for field function of the spin density, explaining, in particular, experimentally observed ferromagnetic properties of graphen films are specified.
Quantitative estimations of a thickness of the domain wall, dividing areas with counterdirected vectors of magnetization were suggested, which allows to check up offered theoretical model experimentally.

About the authors

D D Grachev

Russian Аssociation of Manufacturers of Television Technics

Email: dgrachev@orc.ru <mailto:dgrachev@orc.ru>
Russian Аssociation of Manufacturers of Television Technics

Y P Rybakov

Peoples Friendship University of Russia

Email: soliton4@mail.ru
Кафедра теоретической физики; Российский университет дружбы народов; Peoples Friendship University of Russia

L A Sevastianov

Peoples Friendship University of Russia

Email: sevast@sci.pfu.edu.ru
Кафедра систем телекоммуникаций; Российский университет дружбы народов; Peoples Friendship University of Russia

E F Sheka

Peoples Friendship University of Russia

Email: sheka@icp.ac.ru <mailto:sheka@icp.ac.ru>
Кафедра общей физики; Российский университет дружбы народов; Peoples Friendship University of Russia

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Copyright (c) 2010 Грачёв Д.Д., Рыбаков Ю.П., Севастьянов Л.А., Шека Е.Ф.

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This work is licensed under a Creative Commons Attribution 4.0 International License.

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