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Feb2313 08:41 AM
ZapperZ

1 
20,812 
Dear all,
I am now intended to do some firstprinciple calculations on disordered system, where VCA is an effective...

Aug910 02:44 PM
jikim

1 
2,159 
any objections to using this simplified model to explain current amplification to beginners?
"A simple model with...

Aug2010 05:38 AM
granpa

1 
4,280 
Hello, I seem to be having a problem with an assignment :confused: :
I need to calculate the electric field at...

Jul810 01:47 PM
zhanhai

1 
1,571 
Can somebody explain me how can we visualise reciprocal lattice of a crystal lattice. Also what do we mean by...

Jul810 04:11 AM
weejee

1 
1,963 
Currently in our lab we have a WEDGE shaped sample that we would like to be able to know the thickness at various...

Jul710 08:07 AM
yoshisoakland

1 
3,399 
I understand the basic electron configuration: 1s2 2s2 2p6 3s etc...
However I'm currently using this site:...

Jul910 09:20 AM
alxm

1 
961 
Hi all...
I am just starting off with the monte carlo methods...
I have done some work with self avoiding walks and...

Jul2810 05:42 PM
Timo

1 
1,386 
There is well known phenomenon such as thermal current in diodes which is 26millivolts at room temperature.And it...

Jul1310 06:16 AM
Naty1

1 
1,605 
Hi all. Is there any place where I can check how to derive the DOS of bilayer graphene subject to an external field. I...

Jul2110 12:37 PM
olgranpappy

1 
2,927 
Hi!
Can anyone name me literature about the penetration depth of Oxygen in iron thin films? I am wondering how deep...

Jul2610 11:55 AM
eintagsfliege

1 
3,780 
Canonical ensemble
equilibrium average value
\left\langle...\right\rangle_0=Q^{1}Tr(e^{\beta \hat{H}_0}...)
...

Aug210 01:55 AM
Petar Mali

1 
963 
When using k.p theory to calculate the magnitude of the electric dipole moment in semiconductors for bandtoband...

Aug210 01:53 PM
ppdbacke

1 
1,791 
I was reading about how strained graphene can cause electrons to act as if they were in a magnetic field, exhibiting...

Jul3110 07:43 PM
alxm

1 
1,068 
hi
i am an undergrad student
i had an eqn like the following from which i am to find deflection,stress and...

Aug110 10:05 AM
tanma_amnat

1 
1,509 
Hello to all
I recently completed an experiment trying to find the critical temperature of a bismuth based ceramic...

Aug210 03:10 AM
pmehnati

1 
1,162 
Hello,
Does anyone know how to write codes for constructing the matrix of Hamiltonion of 2D square Tightbonding...

Aug2310 07:05 AM
Sir Beaver

1 
2,321 
Hi there, I had a question on dynamic equilibrium (I know this is sort of a chem question so I didn't know where to...

Aug1910 07:07 PM
ThomasMagnus

1 
788 
Hi
In litterature, I have noticed some authors write the dispersion for the dwave gap as Δ(k)=Δx)cos(ky)]/2, and...

Aug2310 05:29 AM
ZapperZ

1 
945 
Researchers have developed silicene, atomthick silicon sheets similar to graphene:
...

Aug2810 09:38 AM
alxm

1 
3,626 
Hello guys , since I was unable to post this in Learning Materials section so posting it here , mod move it there , i...

Aug2810 06:47 AM
Rajini

1 
1,181 
Here's my understanding of the Force /Separation graph, I'm open to
criticism/ridicule if I've got it wrong:
If...

Sep210 11:05 PM
nasu

1 
4,506 
Hi All,
Is there any software or program to show the first brillouin zone and the miller index of zone boundary...

Sep1110 05:43 PM
pie86

1 
2,548 
I am looking for data on the coefficient r_s, which is related to the radius of a sphere such that, for a given...

Sep1410 02:57 PM
cgk

1 
968 
How do we calculate susceptibility X.
Noting that the curie equation is M = x/T, where M is the total...

Sep2110 05:54 AM
Thaakisfox

1 
1,162 
Hi,
I am trying to find a worked example of the k.p. method for a semiconductor. I understand the theory, but...

Sep1810 07:24 PM
Dr Transport

1 
2,057 
Hello all,
I have a question regarding quasifermi levels that probably some one can help me to understand.
In a...

Sep2310 10:43 AM
Pete99

1 
1,542 
I was always under impression that electron affinity is defined (and listed in tables), as energy change when isolated...

Oct510 03:36 PM
cgk

1 
2,733 
What are the characteristics of hetrojunction bipolar transistor , and how it is fabricated ... please any links any...

Oct810 12:59 AM
robina sr.

1 
791 
Is it possible to perform xray diffraction for 2D crystal like Graphene? If poossible how does the bragg...

Oct810 09:28 AM
read

1 
1,524 
What does Sn(alpha) mean? Does it have anything to do with Miller Indices?

Oct1010 07:54 PM
alxm

1 
1,863 
A couple of days ago I burnished a very rusty old piece of steel with a fine steel wool. It's now very smooth, and...

Oct2410 11:04 PM
SkepticJ

1 
1,900 
I am taking a class which discusses orbital angular momentum in a pseudoquantum way, and it was explained that the...

Oct1410 07:38 PM
johng23

1 
1,734 
I am wondering how is it that the electrons go from one elctron shell to another because I learned that the shells...

Oct1510 04:24 PM
mathman

1 
1,013 
I am trying to understand some aspects of the depletion layer in a semiconductor diode and I have come across some...

Oct2310 06:12 AM
hiyok

1 
2,323 
Hi..
Does the Einstein's coefficient for spontaneous emission B depend upon the energy difference between the two...

Oct3010 07:02 PM
alxm

1 
972 
Why is there no allowed transition from the 2s^2 S_{\frac{1}{2}} state to the 2p^2 P_{\frac{3}{2}} state in the...

Oct2610 02:15 AM
DrDu

1 
1,865 
Hi,
does higher young modulus means higher rigidity of a solide?
Regards,

Oct2610 07:09 PM
Mapes

1 
1,806 
Hi guys, I'm recently working on the quasiharmonic theory. I feel confused when i find the expression of vibrational...

Nov210 05:58 AM
Hyla Brook

1 
1,455 
Hello ,
Maybe this topic has basic understandings of quantum mechanics and involves some mathematic theory...

Nov410 06:07 AM
PRB147

1 
1,402 
I am sorry I don't speak English well.
I have to make wignerseitz cellBCC, FCC by using paper likewise regular...

Nov410 01:03 PM
Gokul43201

1 
4,900 