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Sorgul Kashmiri , Wahidullah Enayat

Abstract

Objective: Nanotechnology has been a promising area of social, environmental, and financial benefits. The present study aims to investigate the temperature behavior of magnetic susceptibility of the grapheme armchair nanoribbon in a magnetic field and with the gap parameter.

Methodology: This is an applied study in terms of type and a cognitive study in terms of approach. Here, a Hamiltonian tight-binding model is used to define the dynamics of the electrons in the device. Then, the energy bands of this sample are obtained by Hamiltonian diagonalization.  The density of the energy states of the device has been obtained by using these energy bands.

Findings: Finally, the magnetic susceptibility and thermal capacity were obtained by integrating the energy on the state density and Dirac Fermi functions. The numerical results of the thermal capacity and magnetic susceptibility were obtained per various temperatures, various gap parameters, and various chemical potentials and their various widths.

Conclusion: It could be concluded from the present study that the thermal capacity of the magnetic susceptibility of armchair nanoribbon is influenced by the width of the armchair nanoribbon, chemical potential, and the energy gap parameter. Changes in the energy gap parameter, chemical potential, and the nanoribbon width lead to significant changes in the states and magnetic susceptibility of the armchair nanoribbon sample‎.