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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 25,932
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
6 3,404
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
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
5 1,675
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
0 786
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 5,265
where exactly neutrino located in an atom? how many neutrinos are there in a hydrogen atom?
Dec20-11 11:32 AM
3 2,424
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
0 1,138
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
1 1,142
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
0 1,129
I have worked with softwares that help me simulate circuits (Hpice, Proteus, MultiSim), but is there a software that...
Oct4-12 09:33 PM
0 917
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 1,118
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
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
3 958
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
3 21,187
Hi guys, I have an question about the correlation between grain size caculated from debye-scherrer and the AFM...
Nov21-11 10:39 AM
1 13,701
Can anyone explain how pseudopotentials are calculated using density functional theory?
Mar3-08 05:15 AM
10 3,019
Iím hoping someone will help me fill in some holes in my understanding of the electronic wavefunction. I...
Jun25-09 02:18 AM
6 7,089
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
1 2,247
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
1 1,363
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
3 1,260
Say we had a material which contains nanoparticles with uniaxial magnetic anisotropy - single domain...
Sep5-11 10:31 AM
1 9,991
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
2 3,430
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
0 1,487
I have two questions regarding rotational kinetic energy. I know that rotational kinetic energy is defined as: KE...
Sep19-13 09:47 PM
1 1,527
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
6 2,822
I have been trying in many locations (unsuccessfully) to find the electrical permittivity value for heavy doped...
Jan23-08 06:32 PM
0 15,689
<iframe width="640" height="360" src=""...
May1-13 03:01 PM
2 793
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
6 5,948
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
0 1,338
Hi, i am running a hard disks molecular dynamics simulation. I would like to compare the radial distribution function...
Jun6-11 01:46 PM
1 2,015
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
5 1,900
A few questions about BEC: A) When these bosons condensate, many particles fill the ground state. I read from...
Jul18-07 02:00 PM
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
5 2,349
Would a piezoelectric crystal create a negative voltage if held within a vacuum? Perhaps it's my misunderstanding of...
Sep3-13 06:41 AM
9 1,107
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
3 1,338
To determine the Fermi Energy for metals such as sodium, copper, gold, ect., one needs the Electron Concentration per...
Mar30-09 01:45 PM
2 4,173
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
2 1,772
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
3 2,514
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
2 919

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