Authentication email has already been sent, please check your email box: and activate it as soon as possible.
You can login to My Profile and manage your email alerts.
If you haven’t received the email, please:
|
|
There are 2 papers published in subject: > since this site started. |
Results per page: |
Select Subject |
Select/Unselect all | For Selected Papers |
Saved Papers
Please enter a name for this paper to be shown in your personalized Saved Papers list
|
1. Thermally-driven Raman optic phonon softening in group III-nitrides | |||
Sun Changqing | |||
Physics 20 October 2006 | |||
Show/Hide Abstract | Cite this paper︱Full-text: PDF (0 B) | |||
Abstract:An extension of the recent approach for the size-induced Raman shift of nanostructures [Sun et al., Phys Rev B 72, 134301 (2005)] to the temperature domain has led to an analytical solution to the thermally driven softening of Raman optic phonons. It turns out that the thermally driven Raman redshift arises from the thermal expansion and bond weakening upon the specimen being heated. Analytical solution has allowed us to reproduce exceedingly well the measured data for AlN, GaN, and InN specimens with derivatives of information regarding cohesive energy for various modes. | |||
TO cite this article:Sun Changqing. Thermally-driven Raman optic phonon softening in group III-nitrides[OL].[20 October 2006] http://en.paper.edu.cn/en_releasepaper/content/8845 |
2. Impact of surface-bond-order-loss on the phonon dispersion relations and the thermal conductivity of cylindrical silicon nanowires | |||
Sun Changqing | |||
Physics 18 April 2006 | |||
Show/Hide Abstract | Cite this paper︱Full-text: PDF (0 B) | |||
Abstract:The effect of bond-order losses due to the surface on the thermal conductivity of cylindrical silicon nanowires has been examined using the isotropic elastic continuum models. A core-shell structure with a modified Young’s modulus in the outermost shell is employed to calculate the thermal conductivity based on the modified phonon dispersion relations. It is shown that the torsional and longitudinal mode of phonon vibration and the thermal conductivity increase significantly due to the effect of surface-bond-order loss. | |||
TO cite this article:Sun Changqing. Impact of surface-bond-order-loss on the phonon dispersion relations and the thermal conductivity of cylindrical silicon nanowires[OL].[18 April 2006] http://en.paper.edu.cn/en_releasepaper/content/6292 |
Select/Unselect all | For Selected Papers |
Saved Papers
Please enter a name for this paper to be shown in your personalized Saved Papers list
|
Results per page: |
About Sciencepaper Online | Privacy Policy | Terms & Conditions | Contact Us
© 2003-2012 Sciencepaper Online. unless otherwise stated