Messages

1

General Questions and Answers / Re: armchair width is odd

« on: June 24, 2014, 11:01 »

thanks 

2

General Questions and Answers / Re: armchair width is odd

« on: June 24, 2014, 01:11 »

Thankyou firstly  so,does it mean actually the electrodes ( left and right )only.

should it not be is this not necessary for the i.e. the central electrode too?

i will really appreciate if you can tell me the reason too 

thanks   

3

General Questions and Answers / Re: armchair width is odd

« on: June 21, 2014, 06:49 »

Dear Professor, sorry i was unable to mention the type of problem. Actually, this is the GFET snapshot in VNL, when i select the width to be odd for ZAZ it says not possible but when the width of the AZA is selected even it says same error. thankyou

4

General Questions and Answers / transmission spectrum of GFET

« on: June 20, 2014, 23:26 »

Dear professor, what can we predict from the transmission spectrum of a GFET like i have considered a AZA GFET with cerium oxide as its dielectric insulator and obtained the transmission spectra . but what does the peks indicate ? secondly, the horizontal axis have values -6, -4, -2 ,0, 2 ,4 but i have elected the values from 0 volts to 0.5 volts as drain to source voltage. how can we resemble these?

thankyou

5

General Questions and Answers / armchair width is odd

« on: June 20, 2014, 23:08 »

please tell me why the width of the armchair GNR is odd and zigzag GNR is even?

6

General Questions and Answers / bilayer GFET

« on: June 20, 2014, 23:07 »

professor, for making GFET. In ATK, we can build GFET from custom builder but please tell me how to model a bilayer graphene channel in GFET using ATk? what will be its importance if any?  i have studied some papers which include that bilayer graphene is preferrable

Thankyou

7

General Questions and Answers / Re: graphene junction

« on: March 1, 2014, 20:45 »

so, does it mean there is no fun in taking AZA structure and how can i change the distance between the edge of the channel material to the oxide surface in vnl?

8

General Questions and Answers / graphene junction

« on: February 23, 2014, 21:30 »

i have used graphene junction with aza structure for high dielectric constants but not getting much difference from previous values? why is it so. i have used the basic sampling points k=1,1,100 using DFT but will it work if i use k=2,2,400 and will give more or less same results?

secondly, will the results will match more or less with the zaz structure? should i go for it or not?