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).
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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 ...
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Hall effect source impedance
Background
I am an electrical engineer. My friend is a technician in a physics lab and he is using an electromagnetic flow meter (i.e. magmeter) which relies on the Hall effect to measure the flow ...
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About the relationship between Hall coefficient and carrier concentration
I had a question while studying the Hall effect.
After going through various intermediate processes, the Hall coefficient can be derived as follows,
$R_H=\frac{1}{qn},$
where $q$ is the quantity of ...
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Hall effect: Do the charges that build up on the sides of conductor kept in uniform magnetic field get uniformly distributed?
When we keep a metal block through which some constant current is flowing in a uniform magnetic field the charges will separate and a potential difference will be created b/w the sides of the ...
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What is meant by compensating the Hall Voltage?
We're doing an experiment to measure the Hall Voltage as functions of current and magnetic field, and we're meant to Compensate the Hall Voltage for $B=0T$. What does this mean, and why do we do it?
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Please explain Hall effect in p type semiconductors without the use of holes [closed]
The movement of holes means the movement of electrons in opposite direction, so in Hall Effect the particles on which force is applied finally must be electrons, so there must be no positive charge ...
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Why force by electric field is appearing?
I want to ask about the Hall effect. Why is the force by the electric field appearing?
I can understand the appearance of the Lorentz force. However, I do not know for what reason the force due to the ...
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What is the correct type of the Berry curvature?
I am studying Berry curvature for a specific material and faced different types of the Berry curvature formula. Some papers use only valence eigenstates (u1) like this $$i*(<(∂U1/∂kx)| (∂U1/∂ky)>...
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How can we tell if we have ordinary or anomalous Hall conductivity?
Based on the Hall optical conductivity graph, how can we tell if we have ordinary or anomalous Hall conductivity?
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How to separate electron and hole mobilities in a intrinsic semiconductor?
I read in textbooks that the electric conductivity of a semiconductor is $\sigma=q(n\mu_n+p\mu_p)$, where $q$ is an electron's charge, $n$ and $p$ are the concentrations of electrons and holes, $\mu_n$...
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Hall voltage vs frame dependent electric field in conductor
The hall voltage is created by a current in a magnetic field.
Similarly, a non current carrying conductor in an electric and magnetic field will appear to have a voltage in a different reverence frame....
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Can one Short a Hall Bar?
Consider a classical Hall bar, no quantum effects. If a magnetic field is applied the standard undergraduate treatment tells us that the Lorentz Force will lead to a build up of excess charge on one ...
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Classical and quantum Hall effects
I am trying to understand the hall effects and have a few problems with them.
So let's consider the classical Hall effect. We know that we consider a sample, where the electrons flow, we apply the ...
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Quantum Hall effect diverges at $B=0$
In the integer quantum Hall effect, with the applied magnetic field reduced, more and more LLs get filled and one can observe higher and higher plateaus in the Hall conductivity $\sigma_H(B)$. ...
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Variation of Current In The Hall Effect Experiment
As a 12th Grader, our class came across a very simple setup of the Hall Effect Experiment during our course on Electromagnetism. The entire idea and eventual steady state conditions all make perfect ...
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