quantum tunnel effect and tunneling microscope

www.toutestquan... for other animations and explanations about quantum physics
realisation Data-Burger, scientific advisor: J. Bobroff, with the support of : Univ. Paris Sud, SFP, Triangle de la Physique, PALM, Sciences à l'Ecole, ICAM-I2CAM

[@AkshayVasant]

I can’t begin to explain how effective this little animation is to clear things up for me. I have taken the entire quantum physics course, but did not understand it so explicitly what was physically happening there. I could derive the heck out of potential well and tunneling but seeing it physically happening so neatly explained is a blessing. Please continue making complex science more easier. Also, I can’t thank you enough for doing an English version as well.

[@litchfirmian7562]

This one and a half minute well made animation are better than hours of lecture. Thank you, sir.

[@mingdali6907]

Short, concise and clear. The only drawback is lack of introduction that what in reality is being extracted. In fact from the tunneling we could obtain LDOS, which makes it even more important than surface topography.

[@mister_9523]

It is so incredible to construct the intuition of turnleling effect.

[@sameerathreya9253]

If the tip 'tears' the electron, does the atom literally become an ion?! I did not understand what they meant by that. Wonderful animations, anyway.

[@drmena6407]

By far the best explanation to date

[@cenomestlibre]

It is confusing that the probe seem not made of atoms, but of some matter very very much thiner than atoms.

[@intoxicatedgluestick23]

Anyone else find themselves just enjoying how well timed this was? 0:04

[@AndrejsZavaruhins]

0:11 - bonces - bouNces ?

[@evasco1979]

It's a shame I can't read the smaller letters... Thank you for this video, anyway, it's really nice to see things explained in a way that we can understand, even if we don't have that much background knowledge on the subject.

[@cnca1123]

May I ask which software did you use to make the animations?

[@anashmitaghosh2932]

Thank you for the video..very well animated

[@tarunbirgambhir3627]

how can you make a 'tip' smaller and thinner than an atom itself?

[@mybluemars]

you can't

[@questionminecrafter]

The tip is the size of a single atom.
One of the most commonly used methods to create such a tip is electrochemical etching of a metal wire.

[@humlon97]

the vid was cool, but the music.... FIRE!

[@prashantkamble8374]

Out standing video what an explanation!

[@anjalikumar9193]

I was dancing with the beat more than really looking at the animation

[@miaosun4382]

fancy video, really helpful for the beginner to understand

[@carlosjuan4190]

Absolutely amazing.

[@rtron2012]

the sound track uses the beat repiter on ableton program

[@chetansrirammadasu9884]

How is the animation made?

[@speedoflink]

Chetan Sriram Madasu with a 3d animation program of course

[@chasharris1976]

I wouldn't mind having a microscope like that.

[@godzilko]

This some sharp needle.

[@LN-GL]

Dans le STM, pour que cette vague, les électrons donc, passe à travers l'objet quantique (cuprate ou pnicture), il faut que les atomes soient des bosons, en groupe de deux ?

[@vijgenboom2843]

Thank you ❤️

[@joaopaulodossantos7927]

Very good!

[@anushyakaruppaiyan5175]

Thank you sir

[@julsarmijo7836]

Interesting......very interesting.

[@EPICGUYDUDE]

So do electrons tunnel from the tip to the sample or vice versa?

[@GodsChildAndProud]

Sample to the tip

[@pudgywudgy]

You can make it go either way depending on the voltage bias.

[@mingdali6907]

Klaudia G It depends on the relative chemical potential, which is tuned by an external bias voltage.

[@p1xeLfps]

thanks :)

[@rohankini6444]

Narayan sir op

[@LeoTaxilFrance]

An explanation that explains nothing. It does not expalain WHY and HOW an electron is torn? An elecron can quit its atom for different reasons (temperature, photons, mecanical force etc.). The role of a tunnel effect is NOT shown and NOT explained.

[@user-dr5fp4of6u]

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