- #1
rogerk8
- 288
- 1
Hi!
I have learned that the Hall-coefficient changes sign according to different metals.
Copper for instance has a positive sign, while Zinc has a negative sign.
Why?
To me an ordinary non-doped metal should always have electrons as beariers of charge.
Further more, I have learned that charge density have no impact on Hall voltage.
Another lerndome, heat is not an issue.
Can anyone explain this?
I have read the Wikipedia article but I did not get any wiser.
Roger
I have learned that the Hall-coefficient changes sign according to different metals.
Copper for instance has a positive sign, while Zinc has a negative sign.
Why?
To me an ordinary non-doped metal should always have electrons as beariers of charge.
Further more, I have learned that charge density have no impact on Hall voltage.
Another lerndome, heat is not an issue.
Can anyone explain this?
I have read the Wikipedia article but I did not get any wiser.
Roger