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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 26,184
Hello everyone. This question may sound naive, but since I am relatively new to the subject, I would like to ask...
Nov29-09 07:14 PM
y4ku24
5 1,775
Hi guys Is there a topic in solid state theory, which is used extensively in in applied physics/optical physics?...
Nov29-09 10:28 AM
Niles
0 919
Hi all, Sorry for starting a new thread that is similar to another previous one but the question I'll ask is...
Nov29-09 08:37 AM
carbon9
2 1,263
Hello, I am new to the forum.. I hope someone can help me with this problem cause this has been killing me for a while...
Nov27-09 11:55 AM
Bob S
3 2,872
Can anybody explain this thing that is "spin" to me? I basically came across it whilst researching how we know...
Nov27-09 02:06 AM
alxm
9 2,782
i will start from the first plz clarify my doubts i will post my other doubts as and when i get replies and...
Nov26-09 08:30 AM
sudar_dhoni
9 1,726
could any1 plz explain avalance effect i can understand that the electrons minority carriers are accelerated by high...
Nov25-09 08:26 PM
sudar_dhoni
8 3,718
Hi. I can't see why the photon created by stimulated emission in a common laser should be in phase and with the same...
Nov24-09 12:47 PM
sokrates
18 4,001
Hi, every one, here i notice a loophole in the usual Kubo formalism for dealing with linear response. It assumes...
Nov24-09 11:28 AM
sokrates
14 2,558
In the band theory it is said that, in conductors, conduction bands are only half-filled. So, when Electric filed is...
Nov24-09 06:46 AM
PhaseShifter
14 3,676
In Semiconductor physics and devices: basic principles , chapter 4, section 4.4, it says:...
Nov23-09 07:27 PM
Dale
0 2,076
Hello, I was wondering if anyone could recommend some really good sources which discuss Paramagnetism and...
Nov23-09 04:07 PM
Shiricon
0 1,151
Hi people! I was just wondering if Fermionic Condensate (FC) can be considered as a state of matter because...
Nov23-09 10:39 AM
Cthugha
2 1,128
Hi all, My question is about obtaining the force between two particular atoms in an ensemble. Please excuse my...
Nov23-09 08:56 AM
alxm
1 922
So the current through a diode as a function of applied voltage is: I = I0 B T) - 1 ] where V is the voltage...
Nov22-09 06:03 PM
f95toli
4 3,366
In the study of the basic semiconductor physics devices we usually draw flat bands without taking into account the...
Nov22-09 10:27 AM
sokrates
1 3,489
the depletion region is resposible for voltage drop all that is fine but in forward bias there is no depletion...
Nov21-09 01:03 PM
Bob S
1 2,434
Regarding the formation of depletion region,it forms because free electrons diffuse into p region from n region. after...
Nov20-09 10:33 PM
sudar_dhoni
13 7,964
this query was previously in electrical engg; later i found that it actually have to be solved as a solid state...
Nov20-09 08:35 PM
Bob S
8 3,644
What is the effective mass of a charge carrier, numerically? Is it equivalent to the mass of an electron? Is it the...
Nov20-09 12:47 PM
granpa
2 2,681
Hi, Energy density of the ith annular section of a Gaussian pulse is written as F(r_i,...
Nov20-09 09:07 AM
serenade
1 2,808
Hi all, May I know which would have a higher vibrational energy at ground state, zero point energy, maximum...
Nov20-09 02:20 AM
Chaste
3 1,214
Namely, why for a vanishing potential in zeroth-order approximation the wave function at the edges of the first...
Nov19-09 01:18 PM
melk
0 1,177
Hi everyone, :smile: Apologies if this is in the wrong section, I'm still relatively new to the forum. :blushing: ...
Nov19-09 05:55 AM
phyzzy_physh
3 5,627
Can EM waves falling on a solid contribute towards lattice vibrations? If yes, then i)when is the energy used in...
Nov19-09 04:22 AM
newtophy
6 1,511
Hello everyone, I have a (simple?) question: How do you differentiate a material to be a conductor or a...
Nov19-09 03:50 AM
DrDu
3 1,520
I've been doing some research on singlet-triplet molecular states, and one things I can't perfectly settle is a...
Nov19-09 01:01 AM
alxm
3 15,122
Assuming amount of electrons flowing is n per unit time, is the total current in a p-n junction 2nQ or just nQ?...
Nov18-09 09:50 AM
serverxeon
0 837
What is a "momentum relaxtion time"? Tried googling it but couldn't get any definitions. Comes from the sentence in...
Nov17-09 05:49 PM
sokrates
3 6,491
I've stumbled upon a problem whilst doing my master thesis The problem is to construct the anisotropic conductivity...
Nov17-09 04:06 PM
Mapes
1 1,339
I have searched in a lot of books and online resources, and none of them shed any light on why phonons are bosons. ...
Nov17-09 01:59 PM
Monocles
5 8,274
In my lecture, my chemistry professor talked about Bonding in Solids. And he asked us whether diamond can melt(in...
Nov17-09 12:54 PM
mgb_phys
11 9,910
Hi guys, I just have a few questions regarding semiconductors and p-n junctions. How can I explain using an E vs k...
Nov16-09 05:22 AM
calamari13
0 2,598
Can any one help me by answeing the following question :- "Please name a Solid which is good condcutor of...
Nov15-09 03:43 PM
phredbo
8 13,146
i have a question concerning BLOCH OSCILLTION.i studied that in the extended zone scheme, the energy of an electron...
Nov15-09 05:37 AM
cavalier3024
3 1,286
Can any one recommend any books that cover k.p theory so that a beginner may be able to (eg) get a realistic programme...
Nov14-09 07:44 PM
phillip75
4 2,135
The electron pairs, acting as bosons, all fall to the lowest energy state, and can't get enough energy (under normal...
Nov13-09 09:58 PM
alxm
8 1,170
I have very little feeling when I study LEED patterns. esp. the reference to the Ewald's sphere. That is something...
Nov13-09 07:33 AM
sunshine111
0 826
Hello Everyone! I need help on this topic. Can anyone provide me some details on how to solve the problem? Thanks..
Nov13-09 07:10 AM
aeracer
5 1,807
Hi all, I am in doubt on a subject. The density of states function of a metallic CNT, is given as ...
Nov12-09 09:24 PM
carbon9
8 2,443

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