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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
ZapperZ
1 25,877
Here is my question in the formation of Schottky Diode: "Why does conduction band is lower than the original value...
Nov9-06 09:49 PM
marcusl
6 3,402
in high school we are learning about mass defect in nuclear fission and fusion and I know the math: ΔE=Δmc^2 ...
May30-12 03:54 PM
mathman
1 1,272
Guys, The question is as follows: Q) I currently simulate organic systems using the Molecular Dynamics (MD)...
Jan4-10 12:03 AM
Jatsui
5 1,674
Okay my understanding of a magnet is that if a magnetic material is placed in it's field then the Magnetic Potential...
Dec13-10 01:34 PM
jawsykilla
0 785
Hi, Quick question. In a PN junction, the depletion region will shrink with an increase in temperature. Why is...
Sep29-05 11:29 AM
Mark Calley
2 5,260
where exactly neutrino located in an atom? how many neutrinos are there in a hydrogen atom?
Dec20-11 11:32 AM
chrisbaird
3 2,420
i got a lab using AFM to scan semiconductor surface using both tapping and contact mode, but i not sure the principle...
Oct6-09 11:19 AM
JayKo
0 1,135
quoted from Kittel text 8th edition page 170,171 the potential energy is U(x)=\SigmaU_{G}e^{iGx} but why it is...
Feb14-10 01:14 PM
torehan
1 1,141
Hi there, I have got 1 question as above as to how magnetization can caused polarized light to be rotated by small...
Apr13-10 02:40 AM
JayKo
0 1,128
I have worked with softwares that help me simulate circuits (Hpice, Proteus, MultiSim), but is there a software that...
Oct4-12 09:33 PM
Jay_
0 916
This at first may sound like a question based in chemistry, but I feel it is more of a particle physics question. ...
Nov8-10 09:01 PM
Bob S
6 1,116
Hey, I'm having trouble finding a clear answer anywhere. When you have a x-ray diffraction pattern, do the dark...
Dec7-12 01:54 AM
Rajini
2 1,127
Hey, I was wondering if anybody could give me a brief overview (if possible) of how weak localization differs from...
Jan4-14 05:53 AM
jbar18
3 954
I work as a machinest and Mill mostly aluminum. I was wondering if the billets are Aluminum its crystalline form? Or...
Jul24-10 09:41 AM
AJ Bentley
6 1,269
The problem said: "Determine the magnitude of the Schmid factor for an FCC single crystal oriented with its ...
Mar5-10 12:24 PM
Mapes
3 21,176
Hi guys, I have an question about the correlation between grain size caculated from debye-scherrer and the AFM...
Nov21-11 10:39 AM
samira_63
1 13,694
Can anyone explain how pseudopotentials are calculated using density functional theory?
Mar3-08 05:15 AM
handsomecat
10 3,018
Iím hoping someone will help me fill in some holes in my understanding of the electronic wavefunction. I...
Jun25-09 02:18 AM
kanato
6 7,076
I'm looking in a textbook at a discussion of a semiconductor quantum well which is being irradiated and an absorption...
Dec1-10 06:00 AM
Cthugha
1 2,245
As I understand it, an exciton is created when an electron is liberated from the valence band of a semiconductor, but...
Jan15-11 06:04 AM
Cthugha
1 1,360
I'm trying to find out about how photodiodes work. I'm aware that they are used as light detection instruments, as...
Jan22-11 01:38 PM
granpa
3 1,259
Say we had a material which contains nanoparticles with uniaxial magnetic anisotropy - single domain...
Sep5-11 10:31 AM
diffractal
1 9,976
I'm having a bit of trouble understanding what's going on with the energy diagram of a PN junction. For your normal...
May24-11 02:52 AM
DrDu
2 3,427
I'm trying to get my head around the step function and the energy states of the quantum well. What I've got so far is...
Jun4-11 12:43 PM
jeebs
0 1,485
I have two questions regarding rotational kinetic energy. I know that rotational kinetic energy is defined as: KE...
Sep19-13 09:47 PM
NLB
1 1,526
Background: I have a BS in CompSci, not Physics, so if this question stuns you in its naivete, please forgive me. In...
Apr4-10 01:26 AM
PhaseShifter
6 2,819
I have been trying in many locations (unsuccessfully) to find the electrical permittivity value for heavy doped...
Jan23-08 06:32 PM
jeffmjohnski
0 15,687
<iframe width="640" height="360" src="http://www.youtube.com/embed/oSCX78-8-q0?feature=player_embedded"...
May1-13 03:01 PM
jtbell
2 790
I'm studying A2 (second year college) physics and im supposed to be finding out about the size of an atom and how it...
Aug27-08 05:53 AM
jenko4292
6 5,943
Wave functions of a Kronig-Penny model with the limit (Uo →∞) are considered in this question. The wave functions for...
Apr20-12 01:41 PM
Jenkz
0 1,337
Hi, i am running a hard disks molecular dynamics simulation. I would like to compare the radial distribution function...
Jun6-11 01:46 PM
Timo
1 2,013
This is a question regarding time and atoms. My question is this: if one were able to stop the occurence of time, or...
Dec2-04 01:23 PM
PhilipF
5 1,898
A few questions about BEC: A) When these bosons condensate, many particles fill the ground state. I read from...
Jul18-07 02:00 PM
Gokul43201
4 2,389
Hi. I have been looking at some lecture notes. What is not so clear for me is, how the imaginary part of the...
Feb24-09 01:57 AM
jet10
5 2,346
Would a piezoelectric crystal create a negative voltage if held within a vacuum? Perhaps it's my misunderstanding of...
Sep3-13 06:41 AM
jf2086
9 1,106
I have been tripping over this for a while. If heat and sound are both essentially vibration, is it possible for...
Dec1-05 09:15 PM
jfxjmn
3 1,337
To determine the Fermi Energy for metals such as sodium, copper, gold, ect., one needs the Electron Concentration per...
Mar30-09 01:45 PM
lbrits
2 4,169
Hi all, I'm preparing a talk about Curie Temperature, and looking for some Ms(T) graphs in the web I've found some...
Nov5-11 06:20 AM
jglezag
2 1,769
hello. I'm studying a project on Thz radiation and have to establish what material would make a good THz detector....
Jan8-09 05:53 AM
0xDEADBEEF
3 2,507
hi i am study the optical effect of alpha radiation and gamma radiation on cr-39 detector i want good reference...
Sep23-12 08:24 PM
Drakkith
2 918

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