Breaking News
Stanene May Be Better Than Graphene
12/3/2013

Adding fluorine atoms (yellow) to a 2-D monolayer of tin atoms (grey) should allow a predicted new material, stanene, to offer zero resistance along its edges (blue and red arrows) at temperatures up to 100 degrees Celsius (212 Fahrenheit). (Yong Xu/Tsinghua University; Greg Stewart/SLAC) (Source: SLAC)
Adding fluorine atoms (yellow) to a 2-D monolayer of tin atoms (grey) should allow a predicted new material, stanene, to offer zero resistance along its edges (blue and red arrows) at temperatures up to 100 degrees Celsius (212 Fahrenheit). (Yong Xu/Tsinghua University; Greg Stewart/SLAC) (Source: SLAC)

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DrQuine
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Invention By Press Release?
DrQuine   12/9/2013 10:25:02 PM
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I'm interested in the dynamic that I see in this "invention". The inventors hypothesize a property of a material that has yet to be produced or tested. I can't help but wonder whether the actual material will reveal issues not anticipated in the model just as working from Newtonian physics doesn't predict the remarkable properties of relativity (to say nothing of many much more mundane examples). I also wonder about the intellectual property; if indeed Stanene does have the predicted properties, is it now public domain?

EEinme
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Great for power and trans-oceanic cables
EEinme   12/4/2013 7:09:31 PM
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Zero resistance ?!    That will be great for power companies and long distance communication companies.


No need to have a repeater or signal conditioning circuitry.   Just point to point direct connect.





 

krisi
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Re: A few qestions/ideas
krisi   12/4/2013 4:14:13 PM
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Re: 20 years...I am afraid this is how long it takes from first recent announcement to mature technology when new material is invented, this is not writing a new app on the iPhone...look at graphene, already 10 years or so in the making and still close to zero revenue...Europe just founded one of the two largest research initiatives to develop graphene science (the other initiative is on brain) so they fully anticipate at least another 5 years before graphene matures...Kris

chrisnfolsom
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Re: A few qestions/ideas
chrisnfolsom   12/4/2013 1:44:36 PM
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Thanks - 100C seems low for active circuits - if the resistance spiked while carrying current I assume it would be reclassified as a switch at best and fuse at worst.... 20 years !! I suppose I am a bit jaded, but that seems like a long time - I am also interested in this new "superconductive" insulator property - has it been used for anything yet? Can you put anything near it, or is there some dielectric effect that would create problems - does it need to be in a vacuume?

OtisTD
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Re: A few qestions/ideas
OtisTD   12/4/2013 1:25:11 PM
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As a Monty Python fan I prefer Tim Valley anyway.  Tin is toxic after all.

 

No resistance would imply no resistive heating and no scattering (meaning low noise) I think.  Also no RC delay.  Of course you have to connect it somehow to something, and then you will have resistance.  I wonder about the dielectric constant of the ribbon and how much cross talk between the two sides will be a factor.  It might not be feasible to use both sides separately, but it could give a neat way to do error checking/correction.

BrainiacV
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When is a superconductor not a superconductor?
BrainiacV   12/4/2013 1:17:38 PM
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How much power can you push through it?

Is it bendable?

Can you make a bundle of them to create a not a superconductor cable?

Over what distance does it not have resistance? Article does not imply any limit, but really?

Can't wait to see these questions answered as time goes by.

krisi
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Re: A few qestions/ideas
krisi   12/4/2013 12:22:08 PM
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I think we are good 10-20 years before fully knowing answers to your questions @chrisfolsom...this is how long I bet the technology will take to mature...BTW, I don't see 100C (212F) as a major limitation, most applications don't require it...Kris

chrisnfolsom
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A few qestions/ideas
chrisnfolsom   12/4/2013 10:34:19 AM
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This seems like a major step although the 212F deg limit seems to limit application quite a bit.  The implications of designing on a computer new materials has much larger implications though.  I had a few questions regarding application if anybody had some quick comments or ideas:

Is this believed to be easily compatible with present chip manufacturing processes?

Could this be used in other applications then just on chip - boards, wires, motors?

What would be the implications of using this for information transfer - I have little experience - with less resistence how will this affect noise in a circuit - besides just less heat/resistence?  Could it transmit dc to microwave efficiently?

There is a misspelling - Tim Valley should be Tin Valley..

 

 

zewde yeraswork
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Re: The Age of Materials
zewde yeraswork   12/4/2013 8:59:54 AM
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I agree. Stanene is new to me but there is no question we are moving into a new age and that silicon has taken us about as far as it can. The use of monolayers of tin to reduce heat and save power within the chip is an exciting breakthrough. No surprise that so many advanced institutions are getting in on the action now.

prabhakar_deosthali
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Re:
prabhakar_deosthali   12/4/2013 6:48:49 AM
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Such kind of conducting material if used for the interconnects will solve many a problems of heat and voltage drops especially for PCB layouts of analog circuits , in my opinion.

Since the superconducting property is available at ambient temperatures that is an added advantage over other superconductors which require sub zero temperatures to achieve the superconductivity.

 

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