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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 25,737
This question is directed at resident theoretical electron physicists in PF Regarding Azimuthal Quantum Energy...
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Dear mates: During ionization with radiant energy there is a photon emission (see ...
Aug20-14 09:56 PM
3 108
I'm writing a little bit of Mathematica code that should be able to make a reasonable powder diffraction spectrum. The...
Y 01:35 PM
0 120
After specifying the primitive vectors of a structure namely (a,b,c) in Wien2k, one has to specify locations of atoms...
Aug19-14 11:57 AM
0 122
I am trying to understand what is meant by the phrase 'absorbed and emitted bosons'. Is it the same as destroyed and...
Aug19-14 12:41 PM
2 159
I have some XPS spectrums that I am trying to fit (my first time doing so), using XPSpeak. I understand that for...
Aug18-14 03:18 AM
M Quack
1 170
Why are absorption cross sections for atoms so much larger than that of molecules. For example, the absorption...
Y 02:33 AM
Simon Bridge
4 187
what is the rule of delta E= A/r^12 _ B/r^6 ????
Aug16-14 05:04 PM
1 204
Hi Guys, I read that the Fermi level of semiconductor, like germanium, is in-between the completely occupied upper...
Aug16-14 12:28 AM
Simon Bridge
1 226
Would one expect the emission and absorption spectral lines for Hydrogen to be at slightly different frequencies ? So...
Aug20-14 04:38 AM
3 255
Hi, I have a question regarding the temperature dependence of the light yield in scintillators. I will attach a...
Aug18-14 12:32 AM
2 268
Dear All, for different oxidation states of the same element in X-ray photoelectron spectroscopy measurements,...
Aug13-14 10:17 PM
Greg Bernhardt
1 273
I've heard any many places that the density of states (DOS) can be determined from an x-ray photoelectron spectroscopy...
Aug4-14 01:37 AM
1 276
To whom is able to answer this: I think that when radiant energy get in contact with matter three basic phenomena...
Aug14-14 03:26 PM
1 289
Hi Guys! I have a confusion which I hope you can help clear up. The mathematical expression of the first law of...
Aug3-14 12:02 AM
Simon Bridge
1 302
So i'm trying to use the excitation law of Boltzmann and the ionisation law of Saha to calculate stuff about what...
Aug12-14 03:56 PM
Greg Bernhardt
1 305
Why is electron rotating in h/2pi orbit does not radiate energy
Aug13-14 12:50 PM
4 317
My base understanding of the solar cell is as follows: Light hits metal in solar cell and emits electron via...
Aug1-14 09:22 PM
1 326
Hello guys, first post in this forum :) Magnetism has always been complicated to understand for me, and I would...
Aug12-14 03:28 PM
M Quack
3 326
Hi people, I'm researching about the interactions of two carbon atoms using the Lennard-Jones potential and I need...
Aug19-14 09:15 PM
2 333
What is the difference between complete and incomplete mode locking in charge density wave systems?
Aug3-14 12:01 PM
Greg Bernhardt
1 346
Hi, I got the complex conductivity vs. frequency table of a metamaterial. Its first lines are like this: f ...
Aug13-14 02:54 AM
3 357
Hi Here is the number for the measured frequency for hydrogen 1s to 2s transition: 2 466 061 413 187 035 Hz ...
Aug8-14 04:51 AM
4 364
You can use transfer matrix method for 2d Ising model. Is there a list of models for which this method could be of...
Aug1-14 09:37 PM
1 374
According to the schematic (FIG 1) in this paper (
Aug12-14 01:53 PM
Useful nucleus
5 403
Hello all, I'd truly appreciate if you could provide me with guidance on this. I'm trying to find the electric...
Apr9-14 11:51 AM
0 413
What is "thermal rounding"
Nov21-13 06:41 AM
0 418
As far as I understand, when forward biased voltage applied, electrons from N diffuse to P, then recombine. Since...
May1-14 01:44 PM
2 418
Hello PFers! I hope everyone is doing well. Here's my question: The way I understand it (imperfectly, of course),...
May7-14 08:18 AM
2 424
Hello, as we all know, in compound solids atoms are always vibrating with some degree, depending on the temperature...
Apr22-14 06:16 AM
M Quack
2 428
Hello, I am wondering about a photon absorption/emission by an atom. We have been told at the university an...
Aug1-14 10:08 AM
4 433
hello everyone.. 1) what is the magnetic properties for indium oxide? i hope that it has ferrimagnetic properties...
Apr24-14 10:39 AM
1 434
Hello! I was wondering what would happen if you placed a piece of undoped Si in an external electric field (say,...
Jul28-14 12:04 AM
1 438
I understand that electron-hole produced when certain energy in form of a photons applied to atom that electron can...
Apr29-14 09:24 AM
3 445
Can an atom be considered as an example of a dipole? It has positive charge in the nucleus and negative charge around...
Apr20-14 06:31 AM
Vanadium 50
2 446
I have some confusion about multiple scattering. We always say that the problem of single scattering is always...
Aug10-14 12:02 AM
vrinda mukund
15 449
Good evening. Usually we say that during light-matter interaction, energy of light should be transferred piece by...
Aug14-14 03:51 AM
6 462
I cannot wrap my head around this stuff. Sorry if long post. I understand that emission lines come from a higher...
Apr8-14 03:23 AM
1 463
To simplify this question, let's say the ocean is 3800 meters deep and 1 meter wide in either direction. Now let's add...
Jul14-14 04:34 PM
M Quack
2 464
Title says it all. I'm reading a lot about the transition metal dichalcogenides and I often see something like ...
Apr27-14 10:48 PM
2 466

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