[Pw_forum] regarding supercells in graphene nanoribbons

[Surender Pratap]

Thanks sir,but i have written it in matlab code,and i am getting the LDOS
,conductance as well as EK diagram,there is hoppings inside supercells also
sir,I can share the matlab script here if you want.

regards


Surender Pratap
Research Scholar
Physics Department
BITS Pilani,Pilani Campus Rajsthan-333031(INDIA)...
Mob-7891949445


*Birla Institute of Technology & Science,* Pilani

Pilani 333031, Rajasthan, India

On Wed, Jun 17, 2015 at 8:58 AM, Sanjeev Gupta <physics.skgupta at gmail.com>
wrote:

> Hi, SP
>
> perhaps positions of atom is not correct and they repeat in second layers,
> but again with Giovanni reply, share your input so user look and comment
> correctly.
>
> SKG
>
> On Tue, Jun 16, 2015 at 8:16 PM, Surender Pratap <
> suren1986dhalaria at gmail.com> wrote:
>
>> Thanks a lot sir,i have taken width of the ribbon is 4,but now in my
>> calculation it is becoming two times ,that means 8 sir,which i am not able
>> to understand sir,why it is happening like this sir.Please help me in this
>> matter sir.
>> regards
>>
>> Surender Pratap
>> Research Scholar
>> Physics Department
>> BITS Pilani,Pilani Campus Rajsthan-333031(INDIA)...
>> Mob-7891949445
>>
>>
>> *Birla Institute of Technology & Science,* Pilani
>>
>> Pilani 333031, Rajasthan, India
>>
>> On Wed, Jun 17, 2015 at 1:59 AM, Giovanni Cantele <
>> giovanni.cantele at spin.cnr.it> wrote:
>>
>>> Dear S. P.,
>>>
>>> 8 could be the right or the wrong Number, it depends on which are the
>>> orientation and the width of the nanoribbon. How did you choose that
>>> number? Nobody will be able to provide help if you do not provide
>>> sufficient information.
>>>
>>> Giovanni
>>>
>>> Inviato da iPad
>>>
>>> Il giorno 16/giu/2015, alle ore 14:45, Surender Pratap <
>>> suren1986dhalaria at gmail.com> ha scritto:
>>>
>>> Dear all users
>>>
>>> Can any body tell me please how many atoms are taken into supercells of
>>> Hamiltonian,in my calculation of graphene nanoribbons ,i am taking 8,is it
>>> right to take 8 ,how 8 are coming i am not able to understand.
>>>
>>> regards
>>>
>>> Surender Pratap
>>> Research Scholar
>>> Physics Department
>>> BITS Pilani,Pilani Campus Rajsthan-333031(INDIA)...
>>> Mob-7891949445
>>>
>>>
>>> *Birla Institute of Technology & Science,* Pilani
>>>
>>> Pilani 333031, Rajasthan, India
>>>
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>
>
>
> --
> With Best Regards,
>
> ------------------------------------
> Dr. Sanjeev Kumar Gupta
> Fulbright Post-Doctoral Scholar
> Dept. of Physics
> Michigan Technological University
> 1400 Townsend Drive, Houghton
> MI 49931, USA
> ------------------------------------
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