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Atomic, Solid State, Comp. Physics

- Exp. & theo. methods for atoms, molecules, condensed matter
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Jan16-12 Greg Bernhardt
Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a...
Feb23-13 08:41 AM
1 24,902
In van der Waals' equation for real gases, the adaptation to account for intermolecular attractions in real gas is...
Aug14-11 11:06 AM
0 1,415
Im just curious if Humans have created anything harder than a diamond.
Sep26-12 12:43 AM
5 1,415
Hi Often in the context of multi-atom systems, such as in cavity QED, it is customary to introduce a so-called...
Nov5-12 12:16 PM
2 1,415
How to separate the spectrum of cadmium in the experiment zeeman effect to two lines if we look at it in parallel to...
Jan24-09 03:26 PM
0 1,416
Hi, Is it possible to observe stark splittings with a 600 grooves/mm attached to a spectrometer.I carried out the...
May1-10 12:56 AM
3 1,416
Hi Is there any other effect than the Zeeman effect that can broaden a spectral line in a magnetic field? /Johan
Jan25-09 01:32 PM
4 1,417
Let's say I have some simple molecule excited to higher electronic level. Is it possible that it goes back to its...
Mar17-12 02:05 AM
1 1,417
While solving the Schrodinger equation for Hydrogen atom, we use the reduced mass and get the wave functions of the...
Jun13-10 01:10 AM
2 1,418
I have some PuO2 sample data taken at room temperature, and unfortunately the only standard I have in my database for...
Nov28-11 11:00 AM
1 1,418
Dear PF, Could you pls advise me any books where in detail is described Hydrogen atom (relativisticaly). Thank...
Nov9-06 02:10 PM
1 1,419
In chemistry I learned the bonding rules that I learned for various molecules never mentioned anything about the...
Jun3-10 12:31 PM
1 1,420
I have seen, in several places, derivations of a formula for the current flow in a 1d quantum wire connected to...
Dec28-08 02:53 AM
0 1,421
I read a book about Feynman,saying that the chemistry may be explained by quantum physics. I got a question now: Are...
Feb6-11 01:19 PM
6 1,421
Hi there! I'm studying the hydrogen molecule. According to the MO technique I start from one-electron molecular...
Feb24-11 11:08 AM
3 1,422
While reading papers on various topics in physics i have become very embarrassed with the meaning of such a word as...
Aug30-08 07:57 AM
0 1,423
The electron-lattice interaction potential is given by V(r)=\sum_{i} Q_{i}\nabla V_{ei} \left( r- R_i\right) ...
Aug21-09 05:54 PM
1 1,424
Hi We know that there is no unique primitive cell, meaning there is no unique choice of primitive vectors. Now,...
Feb11-11 07:54 PM
1 1,424
We know that at zero degrees kelvin the only energy is zero point energy. As we heat a substance, the atoms move...
Dec3-11 02:52 PM
2 1,424
hey, I have a question, it might be really stupid, but I'm probably not as smart as any of you here. Anyway: if you...
Sep25-08 08:03 AM
3 1,425
I did a bit of x-ray spectroscopy in labs studying Fluorescence of some different elements. I was just wondering...
Apr16-09 07:44 AM
Vanadium 50
2 1,425
dear all I work with a spectrophotometer "Carry 17D". below 300nm wavelenght the transition spectrom have lots of...
Jul29-11 09:22 AM
Claude Bile
1 1,425
Hello I have come across this inexplicable fact mentioned in somewhere that for a chain of S = 1 spins, the...
Feb7-11 12:51 PM
1 1,427
Hello members, IF some in this forum have access to VIBRATZ software , please let me know....i need to make some test...
Jun5-08 12:58 PM
0 1,428
Hello, Please could someone explain what properties an icosahedral quasi crystal has which make it differ from a...
Jan8-09 11:40 AM
1 1,429 ...
Jun20-09 12:27 PM
7 1,430
I know that placing a paramagnetic molecule inside a magnetic field will induce a magnetic force on the molecule from...
Oct15-09 02:34 PM
1 1,431
When two hydrogen atoms that each occupied an estimated amount of space combine in a nuclear fusion, that new...
Dec22-12 12:06 PM
1 1,431
Every time I see anything concerning the free electrons in a box, the electrons are assumed to be in the energy...
Oct4-07 10:59 AM
0 1,432
Entropy is in my book defined as: S = k ln\Omega , where \Omega is the multiplicity of the microstates. Now I...
Feb23-12 09:47 PM
Useful nucleus
1 1,432
Who can explain the following questions about transfer matrix? formula (31) in New Journal of Physics, Vol.12...
Mar29-12 06:46 PM
0 1,432
Hi there, I know that primitive cell is not unique and there are more than one way to define the primitive vectors...
Apr30-12 03:58 AM
1 1,432
Hi all, I have several raman spectra where the intensity peaks are of different amplitude but the wavelength peaks...
May4-12 11:19 PM
0 1,432
is that at equilibrium, energy,U=0 from the equation below? U(R) = −(A /R6 )+ (B/R12 ) i nid to differentiate the...
Mar2-09 08:04 AM
1 1,433
Hello, Can anyone explain to me why, concept wise (not from calculations that I get it), is the dispersion relation...
Jul16-12 02:46 AM
1 1,433
Can anyone explain why these two field patterns are so similar? The (3,2,1) hydrogen wave function, and this ...
Feb8-09 09:21 AM
6 1,434
I have a bunch of synchrotron mar plate images and am calculating the degree crystallinity of samples from these data....
Nov17-11 01:43 PM
0 1,434
how to calculate the phase change of the reflection when the electrons hit the bandgap of a metal from another metal...
Jul23-08 09:53 AM
3 1,435
Hello, I would be grateful is someone could explain what the irreversibly temperature in type II superconductors is. ...
May22-11 04:54 AM
1 1,436
Source. Can someone explain what this means? It seems like it would be a big deal if something that should be a...
Feb4-12 04:07 AM
1 1,437
Consider a two-electron system in which both of electrons have the same spins. They like to repel each other and so it...
Nov20-12 08:48 PM
4 1,437

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