Phase diagrams of kekulene-like nanostructure

Magnetic vortices in kekulene-like molecules

“…In this work we have shown that the organic compound Kekulene can support stable vortices in a wide region of dipole anisotropy, being a real possibility for building magnetic nanostructures candidates for building advanced electronic devices with applications in several areas. Interactions between Kekulene molecules were studied by [28,29] when the dipole interaction is absent. An important step forward is to understand how Kekulene molecules interact and its stability in the presence of dipole interactions.…”

“…Because of the spin sizes, Kekulene can be treated in a semiclassical basis. The hamiltonian describing this system can be written as [28,29] (1)…”

Magnetic properties of a mixed spin-3/2 and spin-2 Ising octahedral chain

“…[23][24][25][26] In our previous studies, we have successfully employed an EFT to study magnetic characteristics of nano-systems. [27][28][29][30][31][32][33][34][35] The purpose of this study is to investigate the magnetic properties of the octahedral chain described by the mixed spin Ising model based on the EFT. This method takes into account the correlation of spin itself and is therefore superior to mean field theory.…”

Intrinsic ferromagnetism in CoBr2 nanolayers: a DFT + U and Monte Carlo study

“…The ferromagnetic intra-chain interaction, parallel to the c-axis in bulk CoBr 2 , is denoted by J 0 (J 0 =6 K) [7]. Effective field theory and Monte Carlo studies have been used to study the magnetic and thermodynamic properties of a kekulene-like nanostructure [8] and a zigzag graphene nanoribbon [9]. Density functional theory has been used to study the magnetoelectric coupling effect of Co(Fe)/BiFeO 3 [10] and the full Heusler alloy CrCoVSb [11].…”