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Journal of Superconductivity and Novel Magnetism

, Volume 32, Issue 2, pp 311–318 | Cite as

Phase Diagrams in Graphene-like Ising Nanoparticles

  • T. KaneyoshiEmail author
Original Paper

Abstract

The phase diagrams of four graphene-like nanoparticles described by the Ising model are investigated by the use of the effective-field theory with correlations. The particle is represented by a two-dimensional array of spin-1/2 atoms with two types of exchange interactions, J and JS. The effects of surface exchange interaction JS on the phase diagrams are examined. We have found some characteristic behaviours.

Keywords

Phase diagrams Magnetizations Nanoparticles Ising model Effective-field theory 

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Nagoya UniversityMidori-kuJapan

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