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Questions tagged [hall-effect]

The Hall effect is a voltage arising from an electric field perpendicular to a magnetic field in a material. It is to be distinguished from the quantum hall effect (QHE).

4 votes
4 answers
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How can we explain that beryllium has positive charge carriers as a metal (from Feynman Lectures)?

This question naturally arises from reading Feynman Lectures Vol III 14-3 The Hall effect, online available here, where Feynman states the following: The original discovery of the anomalous sign of ...
fruchti's user avatar
  • 94
2 votes
1 answer
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Charge carriers type: contradiction between Hall effect and Seebeck effect, how to resolve it?

On one hand the Hall effect consists of a voltage that arises when an electric field and a perpendicular magnetic field are in a material. This makes the charge carriers (electrons or holes) under the ...
untreated_paramediensis_karnik's user avatar
3 votes
1 answer
817 views

Longitudinal conductivity from density of states (DOS)

It is well-known that using the so-called Streda formula, the transversal conductivity $\sigma_{xy}$ and thus the Hall conductivity in a two-dimensional material is given as the derivative of the ...
Sascha's user avatar
  • 117
0 votes
0 answers
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The mechanism behind the Lorentz force [duplicate]

It has been known for 130 years that a moving electron entering an external magnetic field is deflected (Lorentz force, Hall effects, synchrotrons). What I have never read is a description of how this ...
HolgerFiedler's user avatar