2024 : 5 : 4
Bandar Astinchap

Bandar Astinchap

Academic rank: Associate Professor
ORCID:
Education: PhD.
ScopusId: 24342779500
Faculty: Faculty of Science
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Research

Title
Thermodynamics Properties of (6, 6, 12)-Graphyne Structure Due to Biaxial Strain and Magnetic Field Effects
Type
JournalPaper
Keywords
Graphyne, tight binding, magnetic field, Biaxial Strain, Thermodynamics Properties
Year
2023
Journal ECS Journal of Solid State Science and Technology
DOI
Researchers Hamed Rezania ، Erfan Norian ، Mona Abdi ، Bandar Astinchap

Abstract

In this paper, we apply a tight binding Hamiltonian model in the presence of magnetic field for investigation of the electronic and transport properties of (6, 6, 12)-graphyne layer. We have also considered the effects of in-plane biaxial strain on the electronic behavior of (6, 6, 12)-graphyne layer. Moreover the impact of strains on magnetic susceptibility and specific heat of the structure has been studied. Specially, the temperature dependence of static thermal conductivity of (6, 6, 12)-graphyne layer has been studied due to magnetic field and strain effects. We have exploited the linear response theory and Green's function approach to obtain the temperature behavior of thermal conductivity, electrical conductivity and Seebeck coefficient. Our numerical results indicate, thermal conductivity increases upon increasing the temperature in the low amounts region. This fact comes from the increasing of thermal energy of charge carriers and excitation of them to the conduction bands. The temperature dependence of Seebeck coefficient shows that the thermopower of undoped (6, 6, 12)-graphyne layer gets positive sign on the whole range of temperatures in the absence of strain effects. The effects of both electron doping and magnetic field factors on temperature behavior of electrical conductivity of (6, 6, 12)-graphyne have been investigated in details. Moreover the effects of biaxial strain on thermal conductivity of single layer (6, 6, 12)-graphyne have been addressed.