Moire and superconductivity

J

Jan Panteltje

Guest
Physicists make graphene discovery that could help develop superconductors
https://www.sciencedaily.com/releases/2019/08/190801105030.htm
 
On Thursday, August 1, 2019 at 12:58:35 PM UTC-4, Jan Panteltje wrote:
Physicists make graphene discovery that could help develop superconductors
https://www.sciencedaily.com/releases/2019/08/190801105030.htm

I bet a major invention is only ten years away!

--

Rick C.

- Get 1,000 miles of free Supercharging
- Tesla referral code - https://ts.la/richard11209
 
On 01/08/2019 20:13, John Larkin wrote:
On Thu, 01 Aug 2019 16:58:23 GMT, Jan Panteltje
pNaOnStPeAlMtje@yahoo.com> wrote:

Physicists make graphene discovery that could help develop superconductors
https://www.sciencedaily.com/releases/2019/08/190801105030.htm

I'm sure that this will have as many amazing applications as
buckyballs and nanobuds and carbon nanotubes.

It is easy to mock blue sky research in the early stages.

How many people will be able to afford a 4" synthetic ruby crystal and a
massive capacitor bank flash gun to make it lase?

Answer turns out to be that after a while with a different technology
they become consumer items in almost everything.

You cannot tell in advance which will be winners and which are dead
ends. My US venture capitalist friends who invested in our start up
(when no-one in the UK would touch us with a barge pole) said their rule
of thumb was 8/10 crash and burn, 1 lingers and 1 goes like a rocket.
The latter pays for all of the others.

> Does Digikey have the fast nonvolatile nanotube RAMs in stock?

No but various forms of carbon fibre are being used to strengthen
aeroplane wings and other serious engineering structures.

http://www.materialsforengineering.co.uk/engineering-materials-features/aerospace-industry-moves-to-carbon-fibre-wings/61987/

I suspect graphene will have its day in the sun after a few false dawns.
It is astonishing that it lay undiscovered for so long when all you
needed was a piece of graphite, Sellotape and grim determination.

Having 2-D constrained systems makes the mathematics a lot easier.
It may well provide insights into room temperature super conductors.

Likewise for buckeyballs until they were discovered on Earth.
Astronomers had been puzzled by the spectrum of stellar dust for some
considerable time. Basically the opposite of helium.

BTW I have a sense of deja vu about this article. I'm sure I read it
somewhere a couple of months back complete with diagrams.


--
Regards,
Martin Brown
 
On a sunny day (Thu, 1 Aug 2019 12:05:54 -0700 (PDT)) it happened George
Herold <gherold@teachspin.com> wrote in
<729276d5-e186-4e8c-835a-4c5a31ddbfcc@googlegroups.com>:

On Thursday, August 1, 2019 at 12:58:35 PM UTC-4, Jan Panteltje wrote:
Physicists make graphene discovery that could help develop superconductors

https://www.sciencedaily.com/releases/2019/08/190801105030.htm

I love the 'enduring mystery' part. quoting,
"Now, a team has paved the way to solving one of the most enduring mysteries
in materials physics by discovering that in the presence of a moir=C3=A9 pattern
in graphene, electrons organize themselves into stripes, like soldiers
in formation."

Since graphene has only been around for ~10 years, it seems enduring
mysteries don't have to last very long these days.

It is just text,
What fascinates me is the link to 'electron paring'
and super conduction.
THAT mystery has been around a long time.
If it was so one can force electron pairing by making the right moire
pattern by aligning crystal patterns, we will REALLY have something BIG.
Room temperature superconductors?
 
On Thu, 01 Aug 2019 16:58:23 GMT, Jan Panteltje
<pNaOnStPeAlMtje@yahoo.com> wrote:

Physicists make graphene discovery that could help develop superconductors
https://www.sciencedaily.com/releases/2019/08/190801105030.htm

I'm sure that this will have as many amazing applications as
buckyballs and nanobuds and carbon nanotubes.

Does Digikey have the fast nonvolatile nanotube RAMs in stock?


--

John Larkin Highland Technology, Inc
picosecond timing precision measurement

jlarkin att highlandtechnology dott com
http://www.highlandtechnology.com
 
On Thursday, August 1, 2019 at 12:58:35 PM UTC-4, Jan Panteltje wrote:
Physicists make graphene discovery that could help develop superconductors
https://www.sciencedaily.com/releases/2019/08/190801105030.htm

I love the 'enduring mystery' part. quoting,
"Now, a team has paved the way to solving one of the most enduring mysteries in materials physics by discovering that in the presence of a moirĂŠ pattern in graphene, electrons organize themselves into stripes, like soldiers in formation."

Since graphene has only been around for ~10 years, it seems enduring
mysteries don't have to last very long these days.

George H.
 
On Thursday, August 1, 2019 at 3:13:40 PM UTC-4, John Larkin wrote:
On Thu, 01 Aug 2019 16:58:23 GMT, Jan Panteltje
pNaOnStPeAlMtje@yahoo.com> wrote:

Physicists make graphene discovery that could help develop superconductors
https://www.sciencedaily.com/releases/2019/08/190801105030.htm

I'm sure that this will have as many amazing applications as
buckyballs and nanobuds and carbon nanotubes.

Does Digikey have the fast nonvolatile nanotube RAMs in stock?
The rate of technological 'progress' does seem to have slowed*.
We've picked all the low hanging fruit... even with thousands of
researchers, it's hard to find something new and useful.

We had "future shock" in the '70's.. but today fizzles.

George h.

*(except for computers)
--

John Larkin Highland Technology, Inc
picosecond timing precision measurement

jlarkin att highlandtechnology dott com
http://www.highlandtechnology.com
 
On Thursday, August 1, 2019 at 3:19:26 PM UTC-4, Jan Panteltje wrote:
On a sunny day (Thu, 1 Aug 2019 12:05:54 -0700 (PDT)) it happened George
Herold <gherold@teachspin.com> wrote in
729276d5-e186-4e8c-835a-4c5a31ddbfcc@googlegroups.com>:

On Thursday, August 1, 2019 at 12:58:35 PM UTC-4, Jan Panteltje wrote:
Physicists make graphene discovery that could help develop superconductors

https://www.sciencedaily.com/releases/2019/08/190801105030.htm

I love the 'enduring mystery' part. quoting,
"Now, a team has paved the way to solving one of the most enduring mysteries
in materials physics by discovering that in the presence of a moir=C3=A9 pattern
in graphene, electrons organize themselves into stripes, like soldiers
in formation."

Since graphene has only been around for ~10 years, it seems enduring
mysteries don't have to last very long these days.

It is just text,
What fascinates me is the link to 'electron paring'
and super conduction.
THAT mystery has been around a long time.
If it was so one can force electron pairing by making the right moire
pattern by aligning crystal patterns, we will REALLY have something BIG.
Room temperature superconductors?

OK, SC graphene was found in 2018
https://www.nature.com/articles/d41586-018-02773-w

But it's two thin sheets and has to be cooled to 1.7 K.
(a long way from room temp.)

George h.
 
On a sunny day (Thu, 1 Aug 2019 12:36:15 -0700 (PDT)) it happened George
Herold <gherold@teachspin.com> wrote in
<b6c1ff51-faee-420f-97e3-a3117b1f8947@googlegroups.com>:

On Thursday, August 1, 2019 at 3:19:26 PM UTC-4, Jan Panteltje wrote:
On a sunny day (Thu, 1 Aug 2019 12:05:54 -0700 (PDT)) it happened George
Herold <gherold@teachspin.com> wrote in
729276d5-e186-4e8c-835a-4c5a31ddbfcc@googlegroups.com>:

On Thursday, August 1, 2019 at 12:58:35 PM UTC-4, Jan Panteltje wrote:
Physicists make graphene discovery that could help develop superconductors

https://www.sciencedaily.com/releases/2019/08/190801105030.htm

I love the 'enduring mystery' part. quoting,
"Now, a team has paved the way to solving one of the most enduring mysteries
in materials physics by discovering that in the presence of a moir=C3=A9 pattern
in graphene, electrons organize themselves into stripes, like soldiers
in formation."

Since graphene has only been around for ~10 years, it seems enduring
mysteries don't have to last very long these days.

It is just text,
What fascinates me is the link to 'electron paring'
and super conduction.
THAT mystery has been around a long time.
If it was so one can force electron pairing by making the right moire
pattern by aligning crystal patterns, we will REALLY have something BIG.
Room temperature superconductors?

OK, SC graphene was found in 2018
https://www.nature.com/articles/d41586-018-02773-w

But it's two thin sheets and has to be cooled to 1.7 K.
(a long way from room temp.)

George h.

OK, but if you can create 'electron highways' like that
it unlocks it (the mystery) for any crystal, at any temperature.
And switching from insulator to super conductor by twisting crystal
lattices could make a nice switch to (say control with a piezo).
[ Usenet patent by me ].
Hey your jealous of those guys?
 
On Thursday, August 1, 2019 at 4:27:11 PM UTC-4, Rick C wrote:
On Thursday, August 1, 2019 at 3:29:20 PM UTC-4, George Herold wrote:
On Thursday, August 1, 2019 at 3:13:40 PM UTC-4, John Larkin wrote:
On Thu, 01 Aug 2019 16:58:23 GMT, Jan Panteltje
pNaOnStPeAlMtje@yahoo.com> wrote:

Physicists make graphene discovery that could help develop superconductors
https://www.sciencedaily.com/releases/2019/08/190801105030.htm

I'm sure that this will have as many amazing applications as
buckyballs and nanobuds and carbon nanotubes.

Does Digikey have the fast nonvolatile nanotube RAMs in stock?
The rate of technological 'progress' does seem to have slowed*.
We've picked all the low hanging fruit... even with thousands of
researchers, it's hard to find something new and useful.

We had "future shock" in the '70's.. but today fizzles.

Big discoveries have always been hard. Future Shock was about the rapid advance of technology directly in contact with people. That is still happening and future shock is still with us. How many in this group still don't have smart phones? Being an older group we don't assimilate technology changes so rapidly.

Besides computers and related technology, how much change is happening these days?
Except for the 'screens' how different is my home from what it was like in the 70's?

(Now got back another 50 years... how much different where homes in the 1920's?)
future shock is over.

George H.
--

Rick C.

+ Get 1,000 miles of free Supercharging
+ Tesla referral code - https://ts.la/richard11209
 
In article <b6c1ff51-faee-420f-97e3-a3117b1f8947@googlegroups.com>,
gherold@teachspin.com says...
OK, SC graphene was found in 2018
https://www.nature.com/articles/d41586-018-02773-w

But it's two thin sheets and has to be cooled to 1.7 K.
(a long way from room temp.)

And, even worse, it's well below the temperature of liquid helium at
atmospheric pressure, which makes it harder to achieve...

BTW I thought graphene was only one atom thick, as two-dimensional as
you can get.

Mike.
 
On Thursday, August 1, 2019 at 3:29:20 PM UTC-4, George Herold wrote:
On Thursday, August 1, 2019 at 3:13:40 PM UTC-4, John Larkin wrote:
On Thu, 01 Aug 2019 16:58:23 GMT, Jan Panteltje
pNaOnStPeAlMtje@yahoo.com> wrote:

Physicists make graphene discovery that could help develop superconductors
https://www.sciencedaily.com/releases/2019/08/190801105030.htm

I'm sure that this will have as many amazing applications as
buckyballs and nanobuds and carbon nanotubes.

Does Digikey have the fast nonvolatile nanotube RAMs in stock?
The rate of technological 'progress' does seem to have slowed*.
We've picked all the low hanging fruit... even with thousands of
researchers, it's hard to find something new and useful.

We had "future shock" in the '70's.. but today fizzles.

Big discoveries have always been hard. Future Shock was about the rapid advance of technology directly in contact with people. That is still happening and future shock is still with us. How many in this group still don't have smart phones? Being an older group we don't assimilate technology changes so rapidly.

--

Rick C.

+ Get 1,000 miles of free Supercharging
+ Tesla referral code - https://ts.la/richard11209
 
On Thursday, August 1, 2019 at 3:59:47 PM UTC-4, Jan Panteltje wrote:
On a sunny day (Thu, 1 Aug 2019 12:36:15 -0700 (PDT)) it happened George
Herold <gherold@teachspin.com> wrote in
b6c1ff51-faee-420f-97e3-a3117b1f8947@googlegroups.com>:

On Thursday, August 1, 2019 at 3:19:26 PM UTC-4, Jan Panteltje wrote:
On a sunny day (Thu, 1 Aug 2019 12:05:54 -0700 (PDT)) it happened George
Herold <gherold@teachspin.com> wrote in
729276d5-e186-4e8c-835a-4c5a31ddbfcc@googlegroups.com>:

On Thursday, August 1, 2019 at 12:58:35 PM UTC-4, Jan Panteltje wrote:
Physicists make graphene discovery that could help develop superconductors

https://www.sciencedaily.com/releases/2019/08/190801105030.htm

I love the 'enduring mystery' part. quoting,
"Now, a team has paved the way to solving one of the most enduring mysteries
in materials physics by discovering that in the presence of a moir=C3=A9 pattern
in graphene, electrons organize themselves into stripes, like soldiers
in formation."

Since graphene has only been around for ~10 years, it seems enduring
mysteries don't have to last very long these days.

It is just text,
What fascinates me is the link to 'electron paring'
and super conduction.
THAT mystery has been around a long time.
If it was so one can force electron pairing by making the right moire
pattern by aligning crystal patterns, we will REALLY have something BIG.
Room temperature superconductors?

OK, SC graphene was found in 2018
https://www.nature.com/articles/d41586-018-02773-w

But it's two thin sheets and has to be cooled to 1.7 K.
(a long way from room temp.)

George h.

OK, but if you can create 'electron highways' like that
it unlocks it (the mystery) for any crystal, at any temperature.
And switching from insulator to super conductor by twisting crystal
lattices could make a nice switch to (say control with a piezo).
[ Usenet patent by me ].
OK, I don't know of course.
Here's arxiv of paper.
https://arxiv.org/ftp/arxiv/papers/1904/1904.10153.pdf
> Hey your jealous of those guys?
Nah, I did low temperature work at the Uni. PITA... table top stuff
is better.

GH
 
On Thursday, August 1, 2019 at 4:36:48 PM UTC-4, Mike Coon wrote:
In article <b6c1ff51-faee-420f-97e3-a3117b1f8947@googlegroups.com>,
gherold@teachspin.com says...

OK, SC graphene was found in 2018
https://www.nature.com/articles/d41586-018-02773-w

But it's two thin sheets and has to be cooled to 1.7 K.
(a long way from room temp.)

And, even worse, it's well below the temperature of liquid helium at
atmospheric pressure, which makes it harder to achieve...

BTW I thought graphene was only one atom thick, as two-dimensional as
you can get.

The sheets do have bonding between them. It's just rather loose van der Waals forces that are not so hard to break compared to covalent bonds within a sheet.

--

Rick C.

-- Get 1,000 miles of free Supercharging
-- Tesla referral code - https://ts.la/richard11209
 
On a sunny day (Thu, 1 Aug 2019 13:12:37 -0700 (PDT)) it happened George
Herold <gherold@teachspin.com> wrote in
<a012c0db-24f2-47d0-a324-17b2df62f141@googlegroups.com>:

On Thursday, August 1, 2019 at 3:59:47 PM UTC-4, Jan Panteltje wrote:
On a sunny day (Thu, 1 Aug 2019 12:36:15 -0700 (PDT)) it happened George
Herold <gherold@teachspin.com> wrote in
b6c1ff51-faee-420f-97e3-a3117b1f8947@googlegroups.com>:

On Thursday, August 1, 2019 at 3:19:26 PM UTC-4, Jan Panteltje wrote:
On a sunny day (Thu, 1 Aug 2019 12:05:54 -0700 (PDT)) it happened George
Herold <gherold@teachspin.com> wrote in
729276d5-e186-4e8c-835a-4c5a31ddbfcc@googlegroups.com>:

On Thursday, August 1, 2019 at 12:58:35 PM UTC-4, Jan Panteltje wrote:
Physicists make graphene discovery that could help develop superconductors

https://www.sciencedaily.com/releases/2019/08/190801105030.htm

I love the 'enduring mystery' part. quoting,
"Now, a team has paved the way to solving one of the most enduring mysteries
in materials physics by discovering that in the presence of a moir=C3=A9 pattern
in graphene, electrons organize themselves into stripes, like soldiers
in formation."

Since graphene has only been around for ~10 years, it seems enduring
mysteries don't have to last very long these days.

It is just text,
What fascinates me is the link to 'electron paring'
and super conduction.
THAT mystery has been around a long time.
If it was so one can force electron pairing by making the right moire
pattern by aligning crystal patterns, we will REALLY have something BIG.
Room temperature superconductors?

OK, SC graphene was found in 2018
https://www.nature.com/articles/d41586-018-02773-w

But it's two thin sheets and has to be cooled to 1.7 K.
(a long way from room temp.)

George h.

OK, but if you can create 'electron highways' like that
it unlocks it (the mystery) for any crystal, at any temperature.
And switching from insulator to super conductor by twisting crystal
lattices could make a nice switch to (say control with a piezo).
[ Usenet patent by me ].
OK, I don't know of course.
Here's arxiv of paper.
https://arxiv.org/ftp/arxiv/papers/1904/1904.10153.pdf
Hey your jealous of those guys?
Nah, I did low temperature work at the Uni. PITA... table top stuff
is better.

I just sat down, eat icecream and apple juice..
and had the strangest ideas.
-- Just imagine if superconductivity indeed depends on the exact angle between crystal lattices,
and when temperature gets higher due to motion that angle becomes more 'chaotic' noise basically
WOULD that be an explanation why some combination of materials are better..
THEN I though: What if you could cancel that crystal vibration electrically by some frequency
say having the things in resonance, like a laser beam or sound beam can hold particles.
WOW! could that bring the superconducting temperature point up higher?
And then it would explain why in some superconductors a too high current stops the super conduction...

OK now I will read your paper
OK, 32 pages, some a bit over my head, will have to read again.
so could I, by using electric signals, make my little YBCO-123 disk superconducting at room temperature?

The secret .. Apple juice, I always liked that.
 
On Thu, 1 Aug 2019 12:29:16 -0700 (PDT), George Herold
<gherold@teachspin.com> wrote:

On Thursday, August 1, 2019 at 3:13:40 PM UTC-4, John Larkin wrote:
On Thu, 01 Aug 2019 16:58:23 GMT, Jan Panteltje
pNaOnStPeAlMtje@yahoo.com> wrote:

Physicists make graphene discovery that could help develop superconductors
https://www.sciencedaily.com/releases/2019/08/190801105030.htm

I'm sure that this will have as many amazing applications as
buckyballs and nanobuds and carbon nanotubes.

Does Digikey have the fast nonvolatile nanotube RAMs in stock?
The rate of technological 'progress' does seem to have slowed*.

No, it's faster than ever, but the rate of press releases has grown
exponentially.


--

John Larkin Highland Technology, Inc
picosecond timing precision measurement

jlarkin att highlandtechnology dott com
http://www.highlandtechnology.com
 
On Thu, 1 Aug 2019 20:34:43 +0100, Martin Brown
<'''newspam'''@nezumi.demon.co.uk> wrote:

On 01/08/2019 20:13, John Larkin wrote:
On Thu, 01 Aug 2019 16:58:23 GMT, Jan Panteltje
pNaOnStPeAlMtje@yahoo.com> wrote:

Physicists make graphene discovery that could help develop superconductors
https://www.sciencedaily.com/releases/2019/08/190801105030.htm

I'm sure that this will have as many amazing applications as
buckyballs and nanobuds and carbon nanotubes.

It is easy to mock blue sky research in the early stages.

Easy because maybe one press-release breakthrough in 10,000 ever
amounts to anything.


--

John Larkin Highland Technology, Inc
picosecond timing precision measurement

jlarkin att highlandtechnology dott com
http://www.highlandtechnology.com
 
On Thursday, August 1, 2019 at 4:41:18 PM UTC-4, George Herold wrote:
On Thursday, August 1, 2019 at 4:27:11 PM UTC-4, Rick C wrote:
On Thursday, August 1, 2019 at 3:29:20 PM UTC-4, George Herold wrote:
On Thursday, August 1, 2019 at 3:13:40 PM UTC-4, John Larkin wrote:
On Thu, 01 Aug 2019 16:58:23 GMT, Jan Panteltje
pNaOnStPeAlMtje@yahoo.com> wrote:

Physicists make graphene discovery that could help develop superconductors
https://www.sciencedaily.com/releases/2019/08/190801105030.htm

I'm sure that this will have as many amazing applications as
buckyballs and nanobuds and carbon nanotubes.

Does Digikey have the fast nonvolatile nanotube RAMs in stock?
The rate of technological 'progress' does seem to have slowed*.
We've picked all the low hanging fruit... even with thousands of
researchers, it's hard to find something new and useful.

We had "future shock" in the '70's.. but today fizzles.

Big discoveries have always been hard. Future Shock was about the rapid advance of technology directly in contact with people. That is still happening and future shock is still with us. How many in this group still don't have smart phones? Being an older group we don't assimilate technology changes so rapidly.

Besides computers and related technology, how much change is happening these days?
Except for the 'screens' how different is my home from what it was like in the 70's?

(Now got back another 50 years... how much different where homes in the 1920's?)
future shock is over.

What was "shocking" about 70's homes compared to 20's? We had better appliances, but that's not too hard to cope with. Not really "shock". All the modern cell phone, laptop, electric car stuff is much harder to adjust to than a vacuum cleaner. That all goes without mentioning the Internet that we are using to communicate with people anywhere on the Earth and even in outer space!

Yes, future shock is with us now. At least that what Alexa told me.

--

Rick C.

-+ Get 1,000 miles of free Supercharging
-+ Tesla referral code - https://ts.la/richard11209
 
On Thu, 1 Aug 2019 18:09:33 -0400, Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:

On 8/1/19 4:57 PM, John Larkin wrote:
On Thu, 1 Aug 2019 20:34:43 +0100, Martin Brown
'''newspam'''@nezumi.demon.co.uk> wrote:

On 01/08/2019 20:13, John Larkin wrote:
On Thu, 01 Aug 2019 16:58:23 GMT, Jan Panteltje
pNaOnStPeAlMtje@yahoo.com> wrote:

Physicists make graphene discovery that could help develop superconductors
https://www.sciencedaily.com/releases/2019/08/190801105030.htm

I'm sure that this will have as many amazing applications as
buckyballs and nanobuds and carbon nanotubes.

It is easy to mock blue sky research in the early stages.

Easy because maybe one press-release breakthrough in 10,000 ever
amounts to anything.


The funding agencies all went Hollywood thirty years ago. For success
in academia, you need skill in astroturfing your way to fame, as well as
knowing which end of a turbopump to hold.

Cheers

Phil Hobbs

When I went to Tulane, I don't think they even had a press release
team.


--

John Larkin Highland Technology, Inc
picosecond timing precision measurement

jlarkin att highlandtechnology dott com
http://www.highlandtechnology.com
 
On 8/1/19 4:57 PM, John Larkin wrote:
On Thu, 1 Aug 2019 20:34:43 +0100, Martin Brown
'''newspam'''@nezumi.demon.co.uk> wrote:

On 01/08/2019 20:13, John Larkin wrote:
On Thu, 01 Aug 2019 16:58:23 GMT, Jan Panteltje
pNaOnStPeAlMtje@yahoo.com> wrote:

Physicists make graphene discovery that could help develop superconductors
https://www.sciencedaily.com/releases/2019/08/190801105030.htm

I'm sure that this will have as many amazing applications as
buckyballs and nanobuds and carbon nanotubes.

It is easy to mock blue sky research in the early stages.

Easy because maybe one press-release breakthrough in 10,000 ever
amounts to anything.
The funding agencies all went Hollywood thirty years ago. For success
in academia, you need skill in astroturfing your way to fame, as well as
knowing which end of a turbopump to hold.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
http://hobbs-eo.com
 

Welcome to EDABoard.com

Sponsor

Back
Top