ЖЭТФ, Том 141,
Вып. 5,
стр. 924 (Май 2012)
(Английский перевод - JETP,
Vol. 114, No 5,
p. 805,
May 2012
доступен on-line на www.springer.com
)
PHONON DISPERSION OF GRAPHENE REVISITED
Sahoo R., Mishra R.R.
Поступила в редакцию: 16 Августа 2011
The phonon dispersion of graphene is derived by using a simple mass spring model and considering up to the first, second, third, and fourth nearest-neighbor interactions. The results obtained from different nearest-neighbor interactions are compared and it is shown that the k2 dependence for the out-of-plane transverse acoustic mode obtained in other sophisticated methods as well as experiment occurs only after considering the fourth nearest-neighbor interaction.
|
|
Золотые страницы
DJVU (109.5K)
PDF (383.7K)