Search Results
| Search type | Search syntax |
|---|---|
| Tags | [tag] |
| Exact | "words here" |
| Author |
user:1234 user:me (yours) |
| Score |
score:3 (3+) score:0 (none) |
| Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
| Views | views:250 |
| Code | code:"if (foo != bar)" |
| Sections |
title:apples body:"apples oranges" |
| URL | url:"*.example.com" |
| Saves | in:saves |
| Status |
closed:yes duplicate:no migrated:no wiki:no |
| Types |
is:question is:answer |
| Exclude |
-[tag] -apples |
| For more details on advanced search visit our help page | |
Results tagged with solid-state-physics
Search options not deleted
user 123061
Solid-state physics studies how macroscopic properties of solids (mechanical, electrical, optical, etc.) result from their microscopic structure. It usually deals with the scale where quantum properties of the particles are substantial.
0
votes
0
answers
48
views
How relate doping concentration and electron concentration?
Say I have Si with the donar doping concentration $N_D=10^{14} \text{cm}^{-3}$ and a temperature $T$.
How can I relate the donar doping concentration to the electron concentration?
I know the foll …
- 443
0
votes
0
answers
320
views
Why is $F(t)=\hbar\frac{dk}{dt}$?
I know $F(t)=m\frac{dv(t)}{dt}=\frac{dp(t)}{dt}$.
However, the force on a electron can be written as $F(t)=\hbar\frac{dk}{dt}$. Why is that?
Isn't $k$ just a constant, $k=\frac{2\pi}{\lambda}$? I.e …
- 443
1
vote
1
answer
6k
views
Equations for numbers of conduction electrons in metals? How to calculate?
I need help understanding these equations from Fundamentals of Physics, 8th, Halliday & Resnick.
The book doesn't use symbols for the equations, which makes them hard to follow.
I understand equation …
- 443
1
vote
1
answer
13k
views
Conduction electron density and atoms per volume, help with equations [closed]
I need help understanding these two equations.
I cannot figure out their relationship and why they are correct.
Starting from the first equation, can I derive the second?
Can I derive any them from …
- 443
0
votes
1
answer
4k
views
Different types of densities? Regular density vs free electron density?
I know the density $\rho$ is
$$
\rho=\frac{m}{V} \quad \bigg [\frac{\text{kg}}{\text{m}^3}\bigg ] \tag{1}
$$
But in solid-state physics an another type of density if the free electron density $n$
$$
n …
- 443
-1
votes
1
answer
2k
views
Units for effective mass [closed]
I having problem how to find the right unit for the effective mass $m^
*_e$ for a electron. The unit should be in $\rm [kg]$ and the formula is $$m^*_e=\frac{\hbar^2}{\frac{d^2E}{dk^2}} \rm [kg]$$
Th …
- 443