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 2,373 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
05 June 2016 5,706 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...
05 June 2016 8,910 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
04 May 2016 7,489 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 3,802 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 8,688 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 4,820 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 6,613 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 2,386 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 9,189 4 View
In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...
03 March 2021 1,682 3 View
Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...
02 March 2021 4,910 3 View
(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...
02 March 2021 3,309 2 View
I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...
28 February 2021 298 3 View
The reasoning behind this question is to align the ratios of the proton potential in energy per charge to the speed of light in distance per time. As these two dimensions appear to be related,...
27 February 2021 947 7 View
Hello, I have used the shell function on SpaceClaim to create thin solids for the model I am studying. These are contained within an enclosure for my study. I chose this approach as it avoids the...
24 February 2021 8,856 3 View
No streamlines present means whether the flow is getting obstructed there and the velocity inside the region is zero? Or else, the fluid is trapped inside that region with a nonzero velocity?...
22 February 2021 5,249 10 View
Simple geometry was made having concentric cylinders bounded by a square region. The geometry has a reflective boundary. The source was defined at one point in the boundary and when it had been...
17 February 2021 4,364 3 View
Recently, I've been selected for an ICTP program named Physics of Complex Systems. But, I have a keen interest in Particle Physics & Quantum networks. As statistical mechanics involved in...
11 February 2021 699 3 View
Does anyone know of applications of multiple sums of a sequence? I know of the Multiple Zeta values (which is a multiple sum of 1/N^s). This has multiple applications in quantum physics, QED,...
08 February 2021 8,047 12 View