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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 24,761
In XRD, to examine the diffraction pattern and the determine the elemental structure, a thin layer of sample is...
Oct17-09 12:58 PM
Modey3
1 1,906
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
kanato
1 1,428
I was just studying the Bhor theory and found that if we assume energy is quantised in (nh/2pi) then we can say...
Oct20-09 08:36 AM
Doc Al
1 1,024
surface plasmons not exist for transverse electric polarisation? and only exist for transverse magnetic polarisation...
Oct22-09 04:05 PM
|squeezed>
1 1,992
This question is directed at resident theoretical electron physicists in PF Regarding Azimuthal Quantum Energy...
- - -
The surface photovoltage effect suggests that the potential at the surface of a semiconductor will change when it is...
May29-14 11:31 PM
rigetFrog
1 779
I can't derive it properly even though it should be easy: From Newtons 2nd law: m dv/dt = -eE => v(t) =...
May29-14 11:21 PM
rigetFrog
1 994
I'm having difficulties understanding the role of scattering on phase coherence in the Aharonov Bohm Effect. In...
Jul18-14 01:14 PM
M Quack
1 1,174
I want to use the ray tracing software ZEMAX to calculate reflection and absorption using thin metal oxide coatings on...
May29-14 11:19 PM
rigetFrog
1 958
I've just begun to study spectroscopy, and I need a clarification about the Doppler Effect. Consider a cell...
May29-14 11:17 PM
rigetFrog
1 950
what are the different mechanisms that cause plasma emission?
Jul23-14 11:34 PM
Greg Bernhardt
1 709
Below is part of derivation of the boltzmann equation in an electric and magnetic field. I don't understand how to...
May29-14 11:13 PM
rigetFrog
1 866
Suppose you have a body floating in a rotating superfluid. Maybe a speck of dust. Would it rotate? What if you...
May6-14 07:10 PM
Greg Bernhardt
1 523
Hi, I am looking for an introduction to heat capacity measurements at low temperature (10K). (For example for...
May29-14 10:56 PM
rigetFrog
1 636
How would react ion of some gas (low energy anion or cation) in vicinity of a grounded metal surface or in vicinity of...
May9-14 02:19 PM
mr.smith
1 740
Hello all, Does anyone knows what is the exact energy gap of Titanium Nitride (TiN) film? Is it indirect band gap...
Jul23-14 11:34 PM
Greg Bernhardt
1 735
Hi, Could anyone explain how the affect that P-N junction depth has on the performance of a semiconductor device?...
Apr20-14 12:20 PM
M Quack
1 499
Hello, I'm currently writing a chemistry program. The user can create any kind of atom he can imagine, and then...
Apr19-14 09:04 PM
SteamKing
1 507
Hi all I was trying to understand the Born-Bethe approximation related to cross sections for atomic and molecular...
May4-14 10:46 PM
Greg Bernhardt
1 599
hello everyone.. 1) what is the magnetic properties for indium oxide? i hope that it has ferrimagnetic properties...
Apr24-14 10:39 AM
UltrafastPED
1 405
Hi, I am numerically solving the 2D effective-mass Schrodinger equation \nabla \cdot (\frac{-\hbar^2}{2} c...
May6-14 11:48 PM
Greg Bernhardt
1 530
I know that at early stage (around 1999), GW implementation uses Matusbara frequency to help calculating self energy,...
May27-14 02:03 PM
Greg Bernhardt
1 612
Hi, I've been reading about critical exponents and how they're related in any system. I've seen how, for example,...
May13-14 01:36 PM
Timo
1 568
I am reading a book about the interaction between atom and photon. I don't understand the following statement: "for...
May13-14 03:38 AM
Zarqon
1 533
I am learning Ashcroft's Solid State Physics. In the Electrons in a Weak Periodic Potential, I got some problems. ...
May13-14 10:47 PM
Simon Bridge
1 540
Orthogonal plane waves can be used to expand Bloch waves. It is better than plane waves because it converges more...
May18-14 09:49 AM
bsmile
1 483
I know one can find the "near field" length of an illuminated diffraction grating by calculating the Talbot Length,...
May16-14 11:18 AM
Claude Bile
1 505
In the following http://electrons.wikidot.com/solar-cells it mentioned that how and when n-side becomes positive?
Jun14-14 05:34 PM
Greg Bernhardt
1 1,035
Hi all, I am working on DFT calculations using SIESTA. I have obtained the Hamiltonian file (.HSX) from the...
Jun25-14 07:45 PM
Greg Bernhardt
1 1,322
Thinking back to my undergraduate years in Chemistry 101, it always struck me as strange that mercury, a transition...
Jun14-14 07:05 PM
SteamKing
1 831
Hi, Does anyone know where I can find the dielectric function of PTFE (Teflon) ? Thank's
Jun26-14 10:36 PM
Greg Bernhardt
1 1,307
Hi everyone, I am working with a solar cell realized with a metal-semiconductor junction. I need to find an...
Jun25-14 10:07 AM
UltrafastPED
1 1,295
Hi everyone, In this paper ( http://pubs.acs.org/doi/abs/10.1021/la962131c ), the authors calculate the surface...
Jul1-14 10:14 PM
Greg Bernhardt
1 1,439
There is such subclass of capacitors with name ''pseudocapacitors'' which seem to use ''fast faradaic reactions''....
Jul1-14 10:14 PM
Greg Bernhardt
1 1,367
I need help with something that i seemed to remember was fairly easy, but just can't seem to find the simple formula...
Jul10-14 04:15 PM
mfb
1 606
Hi everyone! I run the software ABINIT. It allows one to model solids as a plane-wave pseudopotential. Since it is...
Jul7-14 04:06 PM
rigetFrog
1 1,222
Hey guys, I've recently read about the Tavis-Cummings and Dicke models and I got a little bit confused about them....
Jul9-14 06:20 AM
f95toli
1 786
It's known that the Density of States in 2D is given by, g_2(E)dE = \frac{a^2m}{\pi\hbar^2}dE The density of...
Jul20-14 10:29 AM
rigetFrog
1 767
Hello everybody, this is my first time being here. I am a beginner learning some introductions on Bose-Einstein...
Jul21-14 07:57 AM
DrDu
1 561
Hello! I was wondering what would happen if you placed a piece of undoped Si in an external electric field (say,...
T 12:04 AM
Sunfire
1 64

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