Publication Date:
2019
Description:
〈p〉Publication date: Available online 21 August 2019〈/p〉
〈p〉〈b〉Source:〈/b〉 Journal of Magnetism and Magnetic Materials〈/p〉
〈p〉Author(s): Sanae Zriouel〈/p〉
〈div xml:lang="en"〉
〈h5〉Abstract〈/h5〉
〈div〉〈p〉Based on our works [1], [2], [3], [4], we report the magnetic and hysteretic properties of graphene-based Janus materials namely, pure and doped zigzag graphone nanoribbons, hexagonal core/shell graphene-like nanoribbon, and graphyne core/shell nanoparticle, within the framework of both Monte Carlo calculations and mean field theory. We have reported the effects of the Hamiltonian parameters on the magnetic and the thermodynamic quantities of the systems. The total magnetization, the susceptibility, the specific heat, and the hysteresis curves, as well as the critical temperature and the compensation behavior, that is of crucial importance for technological applications such as thermo-optical recording, are studied. A number of characteristic behaviors are found, such as the existence of two new and non-classified magnetization profiles in addition to the 〈math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si80.svg"〉〈mrow〉〈mi〉Q〈/mi〉〈mo〉-〈/mo〉〈mo〉,〈/mo〉〈mi〉P〈/mi〉〈mo〉-〈/mo〉〈/mrow〉〈/math〉, and 〈math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si81.svg"〉〈mrow〉〈mi〉N〈/mi〉〈mo〉-〈/mo〉〈/mrow〉〈/math〉types of compensation behavior and the occurrence of square, single, and triple hysteresis loops which exhibit different step effects and various shapes.〈/p〉〈/div〉
〈/div〉
Print ISSN:
0304-8853
Electronic ISSN:
1873-4766
Topics:
Physics
