Bound states inside the graphene system?

05 May 2016 0 8K Report

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

Badges
Science topic

More Surender Pratap's questions See All

Real part of dielectric constants in case of graphene nanoribbons?

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...

08 September 2018 2,506 1 View

Eigenvalues of random cases in matlab?

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...

05 June 2016 9,088 11 View

Regarding lanczos algorithm in matlab?

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

05 June 2016 5,848 7 View

Localization in two dimensional case?

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.

31 December 2015 3,941 4 View

Corrugated graphene nanoribbons?

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

07 August 2015 8,816 0 View

Retarded Green's function?

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...

06 July 2015 4,962 0 View

Regarding hopping terms in graphene nanoribbons?

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

05 June 2015 6,750 2 View

Fermi energy in Graphene nano ribbons?

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

05 June 2015 2,526 40 View

Regarding graphene nano ribbon?

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...

05 June 2015 9,342 4 View

Anyone familiar with electron-electron interaction?

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...

04 May 2015 9,087 4 View

Short Synthesis of Graphene Oxide from Natural Graphite Flakes?

I am in search of a modified Hummer's method, which can be used to synthesis graphene oxide within 6-8 hours. As I am a student it is not allowed for us to work after 5 in the laboratory. So I am...

01 August 2024 8,368 2 View

How can I separate graphene from amorphous carbon of similar particle sizes?

The starting material is a finely ground powder. Some particles contain more graphene than others.

30 July 2024 3,978 2 View

Graphene and graphene oxide as cancer factor?

Please, can any one inform us about risks of graphene and graphene oxide as a factor of cancer growth?

28 June 2024 6,815 4 View

How to eliminate imaginary phonon frequency in phonon dispersion of Coved Graphene Nanoribbons?

Dear all, I want to calculate the phonon dispersion of 4CNR-1-0 (structure is in Fig. 2 (b) in this article Designing coved graphene nanoribbons with charge carrier mob... ) and then calculate...

17 June 2024 6,911 2 View

Do we need a femto laser for good LIG?

Do we really need a femtosecond laser for Laser-induced graphene(LIG) production on polymers? Other than better resolution and lesser thermal damage is there any other advantages?

13 June 2024 5,294 0 View

I synthesized Graphene oxide Two times but I got Peak at 8 degree first time. And second time I got a Peak at 6 degree. What will be possible reasons?

Please help me.

01 June 2024 1,598 3 View

What is the difference between absorption and adsorption?

30 May 2024 4,447 27 View

Does Graphene Powder really exist?

It is said that graphene layers accumulate again if they are produced and are not in a suitable solvent. So how are these pristine graphene powders supplied? I do not mean graphene oxide or...

29 May 2024 378 1 View

Good Afternoon ,I, Anjum F Sayed Student of Homi Bhabha State University but i am unable to form sponge ???

I am able to prepare Go and Rgo which I have confirmed with Xrd data but sponge formation is difficult. initially solid sponge type structure was formed but it was Fragile . Actually my main...

22 May 2024 1,056 0 View

How to develop an input file for a composite material in Quantum ESPRESSO (QE)?

Currently, I want to investigate the structural, electronic, and other properties of a composite material, but have trouble in developing the necessary input file for Quantum ESPRESSO (QE). So...

21 May 2024 3,409 3 View