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1篇 您的检索式:作者名="Naim Ferdous"
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1Phonon transmission of vacancy disordered armchair silicene nanoribbon显示文摘This work demonstrates the atomic vacancy effects on the phonon properties of armchair silicene nanoribbon in a step by step process for the first time.The phonon localization effect figures out the fact that vacancies cause to high-energy phonons become localized,whereas low-energy phonons can easily transmit.The vacancy reduces high-energy phonon transmission severely compared to low-energy phonon.It is also found from phonon density of states that high-frequency phonons soften towards the low-frequency region.The simulated phonon bandstructure verifies that most of the phonon branches transform to a nondegenerate state from a degenerate state and shifted toward a lower frequency regime due to the presence of vacancies.The overall consequences of atomic vacancies on the phonon thermal conductance disclose the reality that only a few atomic vacancies result in a vital reduction of phonon thermal conductance.In addition,the entropy of the disordered system is investigated.Ashraful Hossain Howlader Md.Sherajul Islam Naim Ferdous 2021Optoelectronics Letters2021,17,8:0
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