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 11 papers published in subject: > since this site started. |
Results per page: | 11 Total, 2 Pages | << First < Previous 1 2 |
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. Dielectric Transition of Nanostructured Diamond Films | |||
Sun Changqing | |||
Physics 13 July 2005 | |||
Show/Hide Abstract | Cite this paper︱Full-text: PDF (0 B) | |||
Abstract:The dielectric behavior of nanostructured diamond films has been investigated by using impedance analyzer up to 500°C. Impedance data are presented in the form of Cole-Cole plot. It is found that: (i) the resistivity contributed both from bulk grain interior and grain boundary decreases with increasing temperature; (ii) above 250°C, the impurities at grain boundaries are thermally activated, and thus contribute to the dielectric relaxation; and (iii) the electrical conductivity of diamond films follows an Arrhenius law with an activation energy transition from 0.13 to 0.67 eV at 250°C. Similar activation energy is found for the Arrhenius plot of relaxation frequencies from 0.14 to 0.73 eV. The dielectric transition is explained as the change of crystal field caused by the thermal expansion or by surface bond contraction of nanosized particles. | |||
TO cite this article:Sun Changqing. Dielectric Transition of Nanostructured Diamond Films[OL].[13 July 2005] http://en.paper.edu.cn/en_releasepaper/content/2438 |
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: | 11 Total, 2 Pages | << First < Previous 1 2 |
About Sciencepaper Online | Privacy Policy | Terms & Conditions | Contact Us
© 2003-2012 Sciencepaper Online. unless otherwise stated