On the Vibrational Behavior of Graphynes and Its Family: a Molecular Dynamics Investigation



Document title: On the Vibrational Behavior of Graphynes and Its Family: a Molecular Dynamics Investigation
Journal: Brazilian journal of physics
Database: PERIÓDICA
System number: 000390400
ISSN: 0103-9733
Authors: 1
2
1
Institutions: 1Islamic Azad University, Young Researchers Club, Langroud, Guilan. Irán
2Islamic Azad University, Science and Research Branch, Teherán. Irán
Year:
Season: Abr
Volumen: 45
Number: 2
Pages: 206-212
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, analítico
English abstract Molecular dynamics (MD) simulation is used to investigate the vibrational behavior of γ-graphyne and its family. Five different nanosheet types including graphyne, graphdiyne, 3-graphyne, 4-graphyne, and 5-graphyne are considered for investigation. The fundamental natural frequencies of armchair and zigzag nanosheets with different geometrical sizes under different boundary conditions are computed. It is shown that increasing the size of γ-graphyne results in decreasing the natural frequency. Comparing the vibrational behavior of armchair and zigzag nanosheets, it is shown that for large nanosheets, the effect of atomic structure on the fundamental natural frequency can be neglected. Besides, it is represented that increasing the number of acetylene links connecting neighboring hexagons in the structure of nanosheets leads to decreasing the frequency
Disciplines: Física y astronomía
Keyword: Física de materia condensada,
Graphyne,
Vibración,
Dinámica molecular,
Carbono
Keyword: Physics and astronomy,
Condensed matter physics,
Graphyne,
Vibration,
Molecular dynamics,
Carbon
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