Hi,

I am looking for information about formation, distribution,
concentration and stability of impurties/ defect in semiconductors,
specifically for cubic SiC. I have some discrete set of
literartures which are neirther systematic, nor elaborate. I would truly
appricitate if any one can suggest me some references.

Sincerely,

-Ashfaq Adnan 

Hi,

I found in polymer books and some literatures that mechanical properties of polymer improve with the increase of their radius of gyration or end-to-end distance for a fixed molecular weight. I, however, could not find any experimental evidence or any physical explanation. 

It will be a great help to me if anyone refer me some literatures that explains the connection between these two parameters.

 Thanks,

Ashfaq Adnan

Hi,

I truly appriciate if anyone can help me find mechanical properties and crystal structure of beta SiC single crystals. Any reference or link will be highly appriciated

Sincerely,

-Ashfaq Adnan

Abstract

Hi, 

I am interested to know the natural frequencies of elements in the periodic table. I made some attempt to reveal this information but surprisingly ended with nothing. Perhaps I  did not search hard. Does anyone know about the natural frequencies of elements in periodic table.

Sincerely,

-Ashfaq Adnan

Doctoral Candidate, School of Aero and Astro, Purdue University, Indiana

Hi, 

I am trying to understand why MD simulation crashes if larger time step (~100 fs) is applied to integrate the equation of motion. I know that there are two major things play role in solving F = ma and obtaining equilibrium solution. One is the accuracy, and the other is numerical stability of the integration algorithm.