How to block tunneling current?

In summary, the conversation discusses the topic of blocking tunneling current and explores different options, such as barrier dimensions, barrier geometry, chemical properties, and magnetic impurities. It also mentions the effects of common cold and anaesthetics on quantum tunneling.
  • #1
Dilema
37
1
Dear forum members
How to block tunneling current?
Apart from barrier dimensions like height and thickness are there any other options? Say barrier geometry or chemical property, maybe some magnetic impurity to induce Kondo effect and scatter the tunneled electrons.
Thank you in advance
Dilema
 
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  • #2
I could think of loads of things and they're all biological or chemical.

The common cold is pretty good at knocking out the quantum tunnelling that happens in the nose. Anaesthetics knock out any tunneling happening in quantum consciousness. I have this stuff called 'Neroli Oil' that stops 'thinking' yet not consciousness.

I'm not sure if this is the information you were looking for though.
 

Related to How to block tunneling current?

1. How does tunneling current occur?

Tunneling current occurs when electrons are able to pass through a potential barrier, such as an insulating material, due to their wave-like nature. This can happen when there is a high electric field or a thin insulating layer, allowing electrons to tunnel through the barrier instead of traveling around it.

2. What are the negative effects of tunneling current?

Tunneling current can lead to power loss, reduced device efficiency, and device failure. It can also cause overheating and damage to electronic components.

3. How can tunneling current be blocked?

There are several ways to block tunneling current, including increasing the thickness of the insulating layer, decreasing the electric field strength, and using materials with a higher bandgap energy.

4. Can tunneling current be completely eliminated?

No, it cannot be completely eliminated as it is a natural phenomenon. However, it can be greatly reduced by using effective barrier materials and optimizing device design.

5. How does temperature affect tunneling current?

As temperature increases, the energy of electrons also increases, making it easier for them to tunnel through barriers. This can lead to an increase in tunneling current. Therefore, it is important to consider temperature effects when designing devices to minimize tunneling current.

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