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Questions related from Surender Pratap
I need to calculate real part of dielectric constant in case of graphene nanorribbons. Please suggest how we can calculate , we need this since no band gap is there in case of graphene, but it is...
09 September 2018 2,472 1 View
Is there any inbuilt lanczos algortihm in matlab,or we need to write ourselve script for this,since i want to solve Tri diagonal Hamiltonain actually in matlab,so any body has any idea . regards
06 June 2016 5,811 7 View
I am calculating eigen values and eigen function with eig function in matlab ,but it is giving wrong answers ,means accuracy wise, is there any other function in matlab ,like in numerical recipes...
06 June 2016 9,034 11 View
How we can determine number of bound states in the Zigzag graphene nanoribbon?Any idea what could be the maximum number of bound states in the Zigzag graphene nanoribon case
05 May 2016 7,588 0 View
Why the localization as well mobility should increase in two dimensions ,if we are moving from 2 to 3 dimensional case,should these two physical things should keep on moving or not.
01 January 2016 3,898 4 View
How this corrugated graphene nanoribbons differs from zigzag graphene nanoribbons.Why 2-D lattice cant exist at finite temperature .Please share your views. with regards
08 August 2015 8,783 0 View
In my GNR(graphene nano ribbon system,i am getting retarded green's function 's values as matrices but in each element very small terms are being subtracted ,as i understand it must be positive...
07 July 2015 4,917 0 View
we can simulate single walled carbon nanotube up to app 1nm diameter,what will happen in case of graphene nano ribbon ,is there limitation in this case like it was in carbon nanotube single walled...
06 June 2015 9,303 4 View
I am simulating graphene nano ribbons,and i want to add my magnetic field term in Hamiltonian,is there any other method than Pierls Substitution or not. regards
06 June 2015 2,483 40 View
Can any body suggests that hopping terms can be t times exp(i^*phi),where phi is any value,we like .Is it possible that we can keep the value like this,what it means physics wise . regards
06 June 2015 6,710 2 View
write(254,*) x(i,j) ,y(i,j) I am getting error here.
05 May 2015 9,847 0 View
Why we need ad atoms in case of GRN,can any body explain it physically ,what exact role they are playing in graphenenano ribbons.
05 May 2015 10,097 0 View
Electron-electron interaction can be incorporated only through Phase breaking potential.How we can say this while as far as i know it can be approximately calculated by Schrodinger-Poisson solver...
05 May 2015 9,053 4 View
We know that when we are talking about classical particles ,but if classical particles are replaced by quantum particles,we cant get Ohm's law,if we have two scatterer why instead of one peak in...
04 April 2015 9,067 16 View
When we are talking about ballistic case,why we are getting number of dispersion relation is equal to two times than that of number of modes or sub bands?
04 April 2015 7,442 3 View
In Conductance Matrix.
04 April 2014 5,917 2 View
Like in plane, sphere or in cone trajectory
01 January 2012 6,678 9 View
