Why we need ad atoms in case of GRN,can any body explain it physically ,what exact role they are playing in graphenenano ribbons.
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
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
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
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
04 May 2016 7,625 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.
31 December 2015 3,941 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
07 August 2015 8,816 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...
06 July 2015 4,962 0 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
05 June 2015 6,750 2 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
05 June 2015 2,526 40 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...
05 June 2015 9,342 4 View
If we map as a continuous motion an ionising electron (beginning its journey at n=1) in an H atom, a specific hyperbolic spiral appears (see animation). When we solve this spiral formula, we find...
07 August 2024 5,343 2 View
Let's say we have a standard, regular hexagonal honeycomb with a 3-arm primitive unit cell (something like the figure attached; the figure is only representative and not drawn to scale). The...
07 August 2024 1,937 1 View
Consider the case of negligible gravity but there is an accelerating reference frame. Its origin traces out a trajectory, or world line, seen in some inertial reference frame. The Lorentz metric...
24 July 2024 1,608 15 View
students already took 1. numerical methods 2. programming language 3. Probability and statistics
09 July 2024 6,271 3 View
Hello dear colleagues and professors Please what is the recommended type of pseudopotentials for QE? ultrasoft or norm conserving?? And from where get all types of pseudos (us, nc, pbe,...
09 July 2024 9,541 5 View
The photo-electric effect does not support quanta in light, since a light particle moving towards a surface cannot cause an electron to move away from the same surface at a right angle. Instead, a...
06 July 2024 2,288 35 View
We assume that the Schrödinger wave equation, iℏ(dψ/dt)= Ĥψ. . . . . (1) is incomplete and cannot be considered a unified field theory. on the other hand, its square, d/dt)partial U= D Nabla^2...
06 July 2024 7,106 8 View
Let's assume medium-free radio transmission where we know the boundaries are the emitter and receiver. We have not yet, using math, formulated the marginal properties of emptiness that must be...
24 June 2024 7,038 4 View
I used material studio app dmol3 module for geometry optimization for a nanotube, and then I calculated its energy, for some of gas phases and I actually had the outmol file which allows me to...
14 June 2024 5,636 0 View
Hello, I am an engineer who deals with etching processes. I'm trying to study the etching process and would like to ask which book would be good to study. I graduated from the Electronics...
05 June 2024 4,977 2 View