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Physicists discover a 'family' of robust, superconducting graphene structures
PHYS.org ^ | Jul 8, 2022 | Jennifer Chu, MIT

Posted on 07/08/2022 2:33:44 PM PDT by upchuck

Graphene is a single-atom-thin material that can be exfoliated from the same graphite that is found in pencil lead. The ultrathin material is made entirely from carbon atoms that are arranged in a simple hexagonal pattern, similar to that of chicken wire. Since its isolation in 2004, graphene has been found to embody numerous remarkable properties in its single-layer form.

In 2018, MIT researchers found that if two graphene layers are stacked at a very specific "magic" angle, the twisted bilayer structure could exhibit robust superconductivity, a widely sought material state in which an electrical current can flow through with zero energy loss. Recently, the same group found a similar superconductive state exists in twisted trilayer graphene—a structure made from three graphene layers stacked at a precise, new magic angle.

Now the team reports that—you guessed it—four and five graphene layers can be twisted and stacked at new magic angles to elicit robust superconductivity at low temperatures. This latest discovery, published this week in Nature Materials, establishes the various twisted and stacked configurations of graphene as the first known "family" of multilayer magic-angle superconductors. The team also identified similarities and differences between graphene family members.

(Excerpt) Read more at phys.org ...


TOPICS: Local News
KEYWORDS: carbon; graphene; grapheneoxide; graphyne

1 posted on 07/08/2022 2:33:44 PM PDT by upchuck
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To: Red Badger; Amendment10; Bellflower; BudgieRamone; ckilmer; Dr. Franklin; DoughtyOne; EEGator; ...
Thanks for the ping Red Badger.

Welcome grey_whiskers.

This is the graphene ping list.

Click Private Reply below to join or leave this list.

Interesting: 10 Uses for Graphene.

2 posted on 07/08/2022 2:35:54 PM PDT by upchuck (The longer I remain unjabbed with the clot-shot, the more evidence I see supporting my decision.)
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If you take layers of super-conductive graphene alternated with dielectrics, do you get a super-capacitor?


3 posted on 07/08/2022 2:41:29 PM PDT by Rio
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To: upchuck

Just use covid vaccine.


4 posted on 07/08/2022 2:51:31 PM PDT by rktman (Destroy America from within? Check! WTH? Enlisted USN 1967 to end up with this? 😕)
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To: upchuck

Will any of that help to keep my EV from exploding?


5 posted on 07/08/2022 2:51:53 PM PDT by Libloather (Why do climate change hoax deniers live in mansions on the beach?)
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To: upchuck

whose arm did they find them in?


6 posted on 07/08/2022 3:03:33 PM PDT by thinden (buckle up.....)
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To: upchuck

Superconducting at -273 degrees Celsius.


7 posted on 07/08/2022 3:05:09 PM PDT by TChad ("Joe, we should evacuate the civilians before the military. You understand that, right? Joe?")
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To: upchuck

“...angles to elicit robust superconductivity at low temperatures...”

They already get NEAR perfect superconductivity at “low” temperatures. How low is low? If they can stay above liquid HE temps, this would be big; otherwise, nothing much to see here.


8 posted on 07/08/2022 3:18:08 PM PDT by SgtHooper (If you remember the 60's, YOU WEREN'T THERE!)
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To: upchuck

Seems very promising in the long run.

It will be quite interesting to me what else they discover
about graphene over the years.

Looking forward to it.


9 posted on 07/08/2022 4:29:40 PM PDT by DoughtyOne (I pledge allegiance the flag of the U S of A, and to the REPUBLIC for which stands.)
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To: upchuck

Thanks for the post.


10 posted on 07/08/2022 4:29:59 PM PDT by DoughtyOne (I pledge allegiance the flag of the U S of A, and to the REPUBLIC for which stands.)
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To: upchuck

If graphene research falls off the radar and is never mentioned again, it will be because they succeeded too well with the superconductivity angle.

Blacker than a black bear wearing a vantablack cloak in the black forest at midnight.


11 posted on 07/08/2022 4:59:22 PM PDT by JustaTech (A mind is a terrible thing)
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To: upchuck

graphene has been displaying amazing properties for two decades. my favorite is the ability to desalinate seawater virtually without any energy. fresh water passes through the mesh leaving behind the salt.

great.

the problem for two decades has been the difficulty in producing graphene profitably/cheaply at scale. except for limited applications.


12 posted on 07/09/2022 8:53:15 AM PDT by ckilmer (qui)
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To: upchuck
From the "10 Uses" article:
"When graphene is incorporated as a nanocomposites, it can contribute to increase gas and moisture barrier properties, electrical conductivity, electromagnetic shielding, thermal conductivity and mechanical properties of the end composite material. Graphene can also be functionalized with suitable groups to incorporate functional groups that makes it more compatible with the polymer."

Super cool neato but WHERE'S MY DANGED SPACE ELEVATOR? I don't have all lifetime.

13 posted on 07/09/2022 3:06:53 PM PDT by MikelTackNailer (BGBB - Build Gallows Back Better.)
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To: MikelTackNailer
Super cool neato but WHERE'S MY DANGED SPACE ELEVATOR? I don't have all lifetime.

I know. Mine's been on backorder for 8 months.

14 posted on 07/10/2022 9:30:10 AM PDT by upchuck (The longer I remain unjabbed with the clot-shot, the more evidence I see supporting my decision.)
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