Dear Mr. Datta,

As for the technology if you can define nano geometry conductors then you can make a nano meter inductor. The main thing here is to etch the material under it and make its thickness also in nanometer scale. You can make it in form of flat spiral. It will work. My expectaion is based on the atomic magnets. As atoms have magnetic moments the nano spiral will have also magnetic moment when a current circulate in it. That is whenever a current there will be associated magnetic field.

you can try such devices at first theoretically to simulate their performance and study their performance parameters and and i i think they will be feasible.

Best wishes

The on-chip inductors are routinely used in GHz frequency range integrated circuits.

However, they are still rather large (~200um) and low Q-factor ( small size fundamentally makes them low -Q due to scaling law of inductance and resistance).

E.g. https://www.hindawi.com/journals/ijmst/2010/517187/

Presumably you want to build and LCR resonant circuit? It’s a bad idea on that scale due to stray Ls and Cs. Rather consider relaxation oscillators instead. But, if you must follow the idea of Nano inductors, then please take a look at this article: https://arxiv.org/pdf/cond-mat/0411463.pdf

Hello Richard O. Ocaya . Thank you for your recommendation. I read the article.

My idea is more about building a nanoinductor for filtering and passive circuit element operations. Are you sure about stray Ls? Well parasitic effects of capacitances will arise, but then we can control dimensions of a capacitor compared to an inductor in any electronic circuit (capacitors are smaller and less bulky than inductors, hence more flexible). My idea of nanoinductor had this major motivation- designing an inductor as large as a microelectronic capacitance of maybe pF magnitude.

Secondly, the paper you sent me proposed optical modelling of such components. What if we use the quantum transport of charge carriers? That way, such an inductor can be used in the prevalent microelectronic filter/ oscillator circuits thus replacing extra active op-amps etc. and also improving low-noise performance.

Let me know what you think.

Devangshu Dutta Quantum effects would amount to possibly tunneling. Let me think a bit about the problem. It’s interesting. In the meantime, an optical wave is still electromagnetic but at post terahertz (post infrared). The paper talks about the electric field component, but remember the magnetic field is related to that from Maxwell’s equations. Therefore, the inductance can still be deduced by extension. The advantage of modeling is it can reveal the extent of what can be achieved, and what may not be possible.

Richard O. Ocaya let me give you a bit more insight into the problem statement:

1. Let's say we fabricate such an on-chip inductor of nanoscale dimensions working on quantum charge transport. Due to the oriented magnetic field generated by flow of current, let's say, through a conducting CNT channel nearby the inductor, magnetic energy of the field can be stored in the inductor.

2. We need separate components like adapters in electrical-electronic devices. They all contain step-down transformers, current delimiters, etc. inside them. In advent of such an inductor, in-built adapters can be possibly designed, then you just need a wire and a plug and voila, you can charge your laptop anywhere!

3. As you rightly said, the magnetic field is related to that from Maxwell’s equations. Therefore, the inductance can still be deduced by extension. We have other effects like the AB- effect in ferromagnetic materials at the nanoscale, and this effect particularly seems useful since the magnetoresistance of CNTs, etc oscillates with change in magnetic flux ( an article attached below for your reference).

https://www.nature.com/articles/17755

Dear Mr. Datta,

As for the technology if you can define nano geometry conductors then you can make a nano meter inductor. The main thing here is to etch the material under it and make its thickness also in nanometer scale. You can make it in form of flat spiral. It will work. My expectaion is based on the atomic magnets. As atoms have magnetic moments the nano spiral will have also magnetic moment when a current circulate in it. That is whenever a current there will be associated magnetic field.

you can try such devices at first theoretically to simulate their performance and study their performance parameters and and i i think they will be feasible.

Best wishes