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Feb2313 08:41 AM
ZapperZ

1 
25,737 
This question is directed at resident theoretical electron physicists in PF
Regarding Azimuthal Quantum Energy...

 
 
 
Dear mates:
During ionization with radiant energy there is a photon emission (see ...

Aug2014 09:56 PM
euquila

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
SadScholar

0 
120 
After specifying the primitive vectors of a structure namely (a,b,c) in Wien2k, one has to specify locations of atoms...

Aug1914 11:57 AM
hokhani

0 
122 
I am trying to understand what is meant by the phrase 'absorbed and emitted bosons'. Is it the same as destroyed and...

Aug1914 12:41 PM
AlexanderRios

2 
159 
I have some XPS spectrums that I am trying to fit (my first time doing so), using XPSpeak.
I understand that for...

Aug1814 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 ????

Aug1614 05:04 PM
Vagn

1 
204 
Hi Guys, I read that the Fermi level of semiconductor, like germanium, is inbetween the completely occupied upper...

Aug1614 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...

Aug2014 04:38 AM
neilparker62

3 
255 
Hi,
I have a question regarding the temperature dependence of the light yield in scintillators.
I will attach a...

Aug1814 12:32 AM
e.bar.goum

2 
268 
Dear All,
for different oxidation states of the same element in Xray photoelectron spectroscopy measurements,...

Aug1314 10:17 PM
Greg Bernhardt

1 
273 
I've heard any many places that the density of states (DOS) can be determined from an xray photoelectron spectroscopy...

Aug414 01:37 AM
t!m

1 
276 
To whom is able to answer this:
I think that when radiant energy get in contact with matter three basic phenomena...

Aug1414 03:26 PM
mathman

1 
289 
Hi Guys! I have a confusion which I hope you can help clear up. The mathematical expression of the first law of...

Aug314 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...

Aug1214 03:56 PM
Greg Bernhardt

1 
305 
Why is electron rotating in h/2pi orbit does not radiate energy

Aug1314 12:50 PM
cbram

4 
317 
My base understanding of the solar cell is as follows: Light hits metal in solar cell and emits electron via...

Aug114 09:22 PM
t!m

1 
326 
Hello guys, first post in this forum :)
Magnetism has always been complicated to understand for me, and I would...

Aug1214 03:28 PM
M Quack

3 
326 
Hi people,
I'm researching about the interactions of two carbon atoms using the LennardJones potential and I need...

Aug1914 09:15 PM
Kjiel

2 
333 
What is the difference between complete and incomplete mode locking in charge density wave systems?

Aug314 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 ...

Aug1314 02:54 AM
DrDu

3 
357 
Hi
Here is the number for the measured frequency for hydrogen 1s to 2s transition:
2 466 061 413 187 035 Hz
...

Aug814 04:51 AM
neilparker62

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...

Aug114 09:37 PM
t!m

1 
374 
According to the schematic (FIG 1) in this paper (http://journals.aps.org/prb/abstract/10.1103/PhysRevB.80.085202)...

Aug1214 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...

Apr914 11:51 AM
npathmat

0 
413 
What is "thermal rounding"

Nov2113 06:41 AM
fizikbrat

0 
418 
As far as I understand, when forward biased voltage applied, electrons from N diffuse to P, then recombine. Since...

May114 01:44 PM
Cthugha

2 
418 
Hello PFers! I hope everyone is doing well. Here's my question:
The way I understand it (imperfectly, of course),...

May714 08:18 AM
ViolentCorpse

2 
424 
Hello,
as we all know, in compound solids atoms are always vibrating with some degree, depending on the temperature...

Apr2214 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...

Aug114 10:08 AM
SJ

4 
433 
hello everyone..
1) what is the magnetic properties for indium oxide? i hope that it has ferrimagnetic properties...

Apr2414 10:39 AM
UltrafastPED

1 
434 
Hello!
I was wondering what would happen if you placed a piece of undoped Si in an external electric field (say,...

Jul2814 12:04 AM
Sunfire

1 
438 
I understand that electronhole produced when certain energy in form of a photons applied to atom that electron can...

Apr2914 09:24 AM
DrDu

3 
445 
Can an atom be considered as an example of a dipole? It has positive charge in the nucleus and negative charge around...

Apr2014 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...

Aug1014 12:02 AM
vrinda mukund

15 
449 
Good evening.
Usually we say that during lightmatter interaction, energy of light should be transferred piece by...

Aug1414 03:51 AM
xxfzero

6 
462 
I cannot wrap my head around this stuff. Sorry if long post.
I understand that emission lines come from a higher...

Apr814 03:23 AM
Zarqon

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...

Jul1414 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
...

Apr2714 10:48 PM
t!m

2 
466 