All Questions
Tagged with cryogenics superconductivity
6
questions with no upvoted or accepted answers
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Would there be any current if an electric circuit is cooled to absolute zero?
My question is if I got a superconductor and cool it to absolute zero at least measurable by today's tool, it should have no electrical resistance but then would there be any current when there is a ...
- 13k
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How to measure critical current of a superconducting wire, if my current source can only supply a small current?
I need to determine the critical current of an aluminum wire at 0.1Kelvin. I have access to dilution fridges, but I cannot modify the wiring in the system from room temperature to the sample space. ...
- 185
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Are there substances that behave as perfect conductors but not superconductors?
Does there exist substances which below a certain temperature becomes as a perfect conductor but not a superconductor? A superconductor is both a perfect conductor as well as a perfect diamagnet. If ...
- 11.8k
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Do good conductors conduct at absolute zero?
The temperature coefficient of good conductors like metal is positive. So with increase in temperature resistance increases and conductance decreases. With decrease in temperature resistance decreases ...
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Question about Meissner Effect video
In this video, what material is on top of the superconductor disk that keeping it cold? Is it just a circular chunk of dry ice?
http://www.youtube.com/watch?v=Ws6AAhTw7RA
I'm planning on recreating ...
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Why do cryogenic temperatures usually result in higher conductivity, even (sometimes) superconductivity, but otherwise nonconductive Wigner crystals?
Wigner crystals are all the rage in the news, since around the start of the pandemic...
But at what temperatures (and pressures?) do these cold materials create a nonconducting 'Wigner crystal' rather ...
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