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Feb2313 08:41 AM
ZapperZ

1 
20,749 
Hello!
I need Your help. If anybody knows, tell me please what incommensurate phases mean. If anybody knows, give me...

Jan1907 02:51 PM
arabesque

6 
2,137 
I have already seen two important problem: one is about the derivation of Fourier's heat law; and the other is about...

Sep2308 09:11 AM
Hootaotao

0 
2,137 
In BCS you make the assumption that the effective electronelectron interaction is constant within a small shell...

Dec405 02:46 PM
ZapperZ

1 
2,134 
When a 90 degree pulse is followed by a 180 degree pulse, a spin echo may be seen at a time tau later...i understand...

Jan1307 08:44 AM
zeta

3 
2,133 
Hello,
The "holy grail" for people who do electronic structure research is to obtain a exact expression for the...

Dec2707 01:49 PM
Gokul43201

1 
2,132 
From a few days I was thinking that the fifth state of matter BoseEinstein Condensate will obey the rules of...

Feb2606 01:44 PM
AC_Gravity

15 
2,131 
Hi,
Why do we say that the exchange correlation hole is "positive" in a medium like a homogeneous electron gas,...

Apr909 01:20 PM
kanato

1 
2,131 
I'm using the TURBOMOLE program to do some basic HF calculations. They all went fine except for the single oxygen...

Nov2310 07:09 AM
Morberticus

5 
2,130 
From Raman, intensity versus wavenumber is spetrum trend obtained. Normally, from the graph, intensity and wavenumber...

Nov2810 04:55 AM
kimmylsm

0 
2,130 
Allow me to elaborate. I'm in a graduate Solid State Physics course currently. Luckily (or not) its a Survey course....

Nov307 01:35 PM
K.J.Healey

2 
2,129 
Hi there, I'm working on a mini research about electrical applications for nano particles, since no books are...

Jan908 07:49 PM
angel 42

7 
2,128 
In solid state we often have case
\sum_{\vec{k}}F(\vec{k})=\frac{V}{h^3}\int_{I bz} F(\vec{p})d^3\vec{p}
...

Sep609 01:39 PM
Bob_for_short

6 
2,128 
Recently, I have become interested in the Quantum anomalous hall effect. However, I'm having some trouble...

Nov1310 07:57 PM
Otterhoofd

0 
2,128 
hello,
i have a question related to metallic bonding.
As far as i know, valence band is defined as the highest...

Feb212 03:29 PM
Wolfgang2b

1 
2,127 
Why does the Fermi level level drop with increase in temperature for a n type semiconductor.? What's the basic idea...

Oct2112 10:56 AM
Ratch

7 
2,127 
in the bosehubbard model, we need to enumerate all the possible basis
usually, the basis vectors are taken as the...

Aug1709 04:01 AM
wdlang

2 
2,126 
Hi friends,
I've calculated the transmission spectrum of ideal carbon nanotubes for various applied voltages on...

Oct309 10:54 AM
carbon9

7 
2,124 
Hi,
I am working on FEM methods as a part of my senior year project and I have written a poisson solver for the...

Dec1611 08:47 AM
f95toli

1 
2,124 
There are three related questions:
1] Consider the junction between two metals of differing work functions. The...

Feb510 03:12 AM
JustinLevy

0 
2,123 
Which groups in the periodic system forms compounded semiconductors?
Is it those who can share 8 valenceelectron...

Nov2407 08:56 AM
Dr Transport

4 
2,120 
Could You simply define what fluorescence blinking is?
Thanks,

Dec1411 06:32 PM
Drakkith

1 
2,119 
Is it correct to say that the Ewald sphere and Brillouin Zone are both representations of k'=k+G?
I'm comfortable...

Jun1111 12:29 PM
johng23

3 
2,117 
Hi all,
I've been having a problem with understanding some of the van der Waals forces. I understand that the...

Sep611 06:21 PM
alxm

2 
2,113 
Hi,
I'm currently recalibrating an optical tweezer for my undergraduate thesis. The alignment did turn out well so...

Mar1311 10:12 AM
MadMarvin

2 
2,112 
Hi everybody,
I don't know how people use the k.p approximation for graphene sheets, while using the Dirac...

Jul2708 11:16 AM
afsaneh

0 
2,109 
Orbital Angular momentum quantum number of an electron in its ground state  s  state is zero, l = 0. That means in S...

Nov510 01:49 AM
granpa

3 
2,109 
It was my understanding (however my understandings are wrong 99.9% of the time) that a electron was massless, and...

Jan2206 09:55 AM
armandowww

13 
2,107 
I am a mathematician, and I am trying to figure out a physics paper for my research. I am not a physicist but I have...

Aug1509 12:11 PM
deepurple

2 
2,107 
I notice that some bosons can exhibit BoseEinstein condensation while others cannot (photons, phonons). Is it true...

Oct1110 09:06 PM
paradoxwst

2 
2,106 
Hi
I am reading about the force of a coherent EMbeam acting upon an atom, and I have a question in this regard....

Mar512 05:43 AM
M Quack

13 
2,104 
Can somebody tell me what is the angular velocity of an electron (more or less) around the nucleus. (it doesn't matter...

Dec1103 02:13 AM
suyver

1 
2,103 
Hi
I am reading about quantization of orbital angular momentum and, as I read, I am trying to compare it to the...

Sep2012 11:09 AM
Niles

15 
2,103 
Hello :)
I'm not at all a specialist in condensed matter, nor do I understand much of its basics. I'm nevertheless...

Aug1711 09:29 AM
Physics Monkey

2 
2,102 
Hi there,
Could anybody explain how the free electron dispersion relation would be modified by the presence of a...

Aug2412 10:58 PM
sokrates

3 
2,102 
hello :) ,
like I said in the title of this topic I am confused about physical interpretation of physical quantity...

Aug1211 06:45 AM
Foder

4 
2,100 
what is the significance of Rydberg function ? From wikipedia, it says each chemical element has its own rydberg...

Feb2606 01:09 PM
Azael

3 
2,099 
Hi Everyone,
I am giving a talk on group theory as related to spectroscopy (IR & Raman) and I was curious about how...

Feb2608 09:05 PM
Dr Transport

1 
2,099 
Hi guys i have a question about how semiconductor materials absorb photons at less than the band gap energy....

Jan1709 11:02 AM
Minich

4 
2,099 
I measured the heat capacity of a sample under various magnetic fields. When I calculated the magnetic entropy as a...

Jun112 09:35 AM
fuzhendong

2 
2,098 
if helium is 'superfluid' at low temperatures then is it correct to think of amorphous solids as 'superviscous'?

Jun109 09:51 PM
granpa

14 
2,097 