In QM classes, you do not really deal with the complete circuit case because you normally deal with tunneling events. But in the case of an STM, you need a current so would the idea not be kinda of like electronics -> tip -> sample -> ground? So if I tunnel electrons into a localized surface...
Ah what I mean is , you still need a complete electrical circuit for a current to flow do you not?
So if you're tunneling inside the bulk band gap, you should not be able to establish a complete electrical circuit
Hi again people!
So if I have two STS (scanning tunneling spectroscopy) spectra, one taken on a substrate and the other one taken on an adsorbate layer ontop of the substrate. Assuming there is some sort of interfacial dipole that forms between the substrate and the adsorbate layer, can I...
Hi there people!
So my question is why you can see localized surface states within the band gap of the material with an STM. How is a tunneling circuit being established?
Hmmm makes sense and I have encountered faraday's law but not inductance though. But if my understanding of what your saying is that the current, the formation of the poles and the magnetizing of the coil of wire happens at the same time?
An explanation in inductance would be good though
ok but how does the conservation of energy apply? Where does the current come from? I know from movement but how is that energy converted into electrical energy
well i mean induced current, how does it form? I know change in magnetic flux, but how would the current come out of nowhere. Meaning, shouldn't the solenoid or coil of wire have to have poles first?
Hello everyone, first time posting in here.
Heres a question, in Lenz's Law, it states that the current produced will be opposite of the motion that created it. This is done by the repulsion or attraction force created by the solenoid to counter the motion of the magnet. Now, without the work...