New Forms of Exotic Superconductivity by Stacking Layers of Graphene

SciTechDaily ^ | Mar 9, 2023 | ISTA

[upchuck]

Thanks to Red Badger.

Graphene is a strange material. Understanding its properties is both a fundamental question of science and a promising avenue for new technologies. A team of researchers from the Institute of Science and Technology Austria (ISTA) and the Weizmann Institute of Science has studied what happens when they layer four sheets of it on top of each other and how this can lead to new forms of exotic superconductivity.

“Multilayered graphene has many promising qualities, ranging from widely tunable band structure and special optical properties to new forms of superconductivity—meaning being able to conduct electrical current without resistance,” Ghazaryan explains. “In our theoretical model, we are continuing our work on multilayer graphene and are looking at various possible arrangements of different graphene sheets on top of each other. There, we found new possibilities for creating so-called topological superconductivity.” In their study, the researchers simulated on a computer what happens when you stack a few layers of graphene sheets on top of each other in certain ways.

Imagine a sheet of material just one layer of atoms thick—less than a millionth of a millimeter. While this may sound fantastical, such a material exists: it is called graphene, and it is made from carbon atoms in a honeycomb arrangement. First synthesized in 2004 and then soon hailed as a substance with wondrous characteristics, scientists are still working on understanding it. Postdoc Areg Ghazaryan and Professor Maksym Serbyn at the Institute of Science and Technology Austria (ISTA) together with colleagues Dr. Tobias Holder and Professor Erez Berg from the Weizmann Institute of Science in Israel have been studying graphene for years and have now published their newest findings on its superconducting properties in a research paper published on March 2 in the journal Physical Review B.

[upchuck]

Thanks to Red Badger for pinging me to this article.

Graphene may prove to be useful in producing safe, long lasting rechargeable batteries. Would be a real boon to the EV market.

[upchuck]

This is the graphene ping list.

Click Private Reply below to join or leave this list.

Interesting: 10 Uses for Graphene.

[Bobalu]

Oh the wonderful things that could be done with room-temperature superconductors.

unobtainium

[Mr. K]

"...There, we found new possibilities for creating so-called topological superconductivity.” In their study, the researchers simulated on a computer what happens when you stack a few layers of graphene sheets on top of each other in certain waysprogram a new way to get government funding...."

There, fixed it

[Getready]

Computer simulation. Perhaps they should wait till they actually display superconductivity in the material before they announce the accomplishment.

[reviled downesdad]

Exactl, simulation is not reality.

[null and void]

But reality might be a simulation...

[ProtectOurFreedom]

You’d rather they just be quiet about what they have learned? Why? This will put other researchers onto this promising area amplifying efforts to get to a physical sample.

All new drugs start off with such modeling.

This is the normal progression of research. Researchers no longer jump straight to the lab to tinker with physical materials. Why would you NOT take advantage of enormous computing power to model materials? This isn’t 1960 (or anytime before that).

[GMThrust]

Might explain why they put it in the injections...

[Wuli]

I have not yet seen graphene in a real “game changer” of a product; as in what graphene products suggest it can be.

This list shows that:

https://www.grapheneuses.org/graphene-products/

[Getready]

You make a good point. However, I am sure this information would be known among just about all researchers in that field.
Most publications print something long after the cognesenti in the field know about it. In this case the announcement seems to indicate the superconductivity was actually achieved. Looks like bloviation.
Would you give someone the Congressional medal of honor if they achieved the highest score on the computer game CALL TO DUTY?

[ckilmer]

what I’m hoping for graphene is that it will enable reverse osmosis a room temperature and pressure.

basically that would make desalinated sea water cheap enough for agriculture and roughly double the size of habitable earth.

[SunkenCiv]

---

---

· List topics · post a topic · subscribe · Google ·

---