Unraveling the Temperature-Hall Voltage Relationship

In summary, as temperature increases, the hall voltage in a semiconductor decreases due to an increase in resistance. This can be explained by the charge carriers acting like a gas, with the applied magnetic field pressing down on one side. As the temperature increases, the charge carriers become lighter and the hall voltage is reduced. However, at a certain temperature, the hall voltage begins to go back up due to the charge carriers lifting up and exerting less pressure on one side. This concept is further explained in the provided resources.
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leroyjenkens
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I don't understand why as temperature increases, the hall voltage goes down. What's going on with the electrons at increasing temperature to cause that to happen? And why at a certain temperature, the hall voltage starts to go back up? It's hard to find an answer on Google that gives me a conceptual answer to this. Thanks.
 
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It's hard to find an answer on Google that gives me a conceptual answer to this. Thanks.
Conceptual answers? Well... I'll try...

I don't understand why as temperature increases, the hall voltage goes down. What's going on with the electrons at increasing temperature to cause that to happen?
As the temperature increases, resistance also increases.

More complicated - think of the charge carriers in the semiconductor like a gas - the applies magnetic field simplistically put acts like gravity o the gas pushing it down to one side. How much it presses to that side determines the hall voltage. Increased temperature makes the gas lighter and it lifts up so it does not press down so much.

Help?

And why at a certain temperature, the hall voltage starts to go back up?
Having trouble finding an example that is not a mistake.

See:
http://www.pas.rochester.edu/~advlab/2nd_meeting/07_Hall.pdf
And also:
http://www.ifsc.usp.br/~lavfis/BancoApostilasImagens/ApEfHall-CondEletr/EfHall-nGe-5_3_02.pdf
 
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Thanks a lot, that does help.
 

Related to Unraveling the Temperature-Hall Voltage Relationship

1. What is the temperature-Hall voltage relationship?

The temperature-Hall voltage relationship is a physical phenomenon that describes the relationship between temperature and Hall voltage in a material. It states that as the temperature of a material increases, the Hall voltage also increases.

2. How is the temperature-Hall voltage relationship measured?

The temperature-Hall voltage relationship is typically measured using a Hall effect sensor, which is a device that measures the Hall voltage across a material when a magnetic field is applied. The temperature of the material is also measured simultaneously, and the data is used to plot the relationship between temperature and Hall voltage.

3. What factors influence the temperature-Hall voltage relationship?

Several factors can influence the temperature-Hall voltage relationship, including the type of material, its composition, and the strength of the magnetic field applied. Additionally, impurities in the material and external factors like pressure and strain can also affect the relationship.

4. Why is the temperature-Hall voltage relationship important?

The temperature-Hall voltage relationship is important because it provides valuable information about the properties of a material. It can be used to determine the type of material, its composition, and even its purity. This information is crucial in various fields, including materials science, electronics, and engineering.

5. How is the temperature-Hall voltage relationship used in practical applications?

The temperature-Hall voltage relationship has several practical applications, including in the development of Hall effect sensors for measuring magnetic fields. It is also used in the study of semiconductor materials and in the calibration of temperature sensors. Additionally, the relationship can be utilized in the design of electronic devices and in the development of new materials with specific temperature-dependent properties.

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