COLLECTIONS

Documents published in Scipedia

• Simple Model of Nonlinear Spin Waves in Graphene Structures

  D. Kulyabov, K. Lovetskiy, L. Nhat, L. Nhat

  (2018). Вестник Российского университета дружбы народов. Серия: Математика …, 2018

  
  

  Abstract

  A series of theoretical and experimental works are known which investigated the magnetic properties of graphene structures. This is due, among other things, to the prospects of using graphene as a material for the needs of the future nanoelectronics and spintronics. In particular, it is known about the presence of ferromagnetic properties at temperatures up to 200 C and above in single-layer graphene films that are free from impurities. Previously there was proposed a quantum field theoretical model describing the possible mechanism of ferromagnetism in graphene as a result of the spontaneous breaking of spin symmetry of the surface density of valence electrons. The possible spatial configurations of the localized spin density were described. In this paper, we investigate such spatially localized nonlinear spin configurations of the valence electron density on the graphene surface such as kinks, and their interactions, as well as quasibound metastable states of the interacting kinks and antikinks, that are breathers. The spectrum of such breathers is investigated. It is shown that under certain conditions, this spectrum has a discrete sector, which, in turn, allows us to speak about the possibility of coherent quantum generation of spin waves in graphene structures, which is important in terms of practical applications in nanoelectronics and spintronics.  

  Abstract
  A series of theoretical and experimental works are known which investigated the magnetic properties of graphene structures. This is due, among other things, to the prospects [...]

  • 2
  •  read

Articles (Documents not available in Scipedia)

• Pseudospectral Methods for Nonlinear Pendulum Equations

  Anh Nhat Le

  Сибирский федеральный университет. Siberian Federal University, 2019

• Using differentiation matrices for pseudospectral method solve Duffing Oscillator

  LA Nhat

  J. Nonlinear Sci. Appl 11 (12), 1331-1336, 2018