Scotch Tape Holds Together Novel 80 K "High Temperature" Superconductor
September 12, 2012 5:32 PM
Tape helps maintain tight contact between two components of the system
They say duct tape (or scotch tape) fixes everything.
Well, a bit of tape certainly did the trick in a new study examining "proximity effects"
. A "proximity effect" refers to when a superconducting material is able to induce superconducting behavior in a second material -- a semiconductor that does not typically enjoy superconductivity.
The effect is of high interest for a couple of reasons. First, it is being examined for
. Second, it is of interest from a theoretical standpoint, as it is theorized that Majorana fermions -- an elusive type of subatomic particle -- appear at the interface.
Poor contact limited past efforts to under 10K -- a chillingly cold temperature that requires extreme measures to maintain. The key problem is that high temperature superconductors
are typically cuprates
-- materials typically composed of iron, copper, and oxygen. But cuprates have a wildly different atomic structure versus most polycrystalline semiconductors, making them virtually impossible to "grow" on the target substrate with similar techniques. This is most unfortunate as the proximity effect is delicately tied to physical contact, and mechanical alternatives to deposition have producing unappealing results.
But in a wild twist the researchers at the
University of Toronto
Dept. of Physics
hatched the idea to use scotch tape and glass slides to bind the two materials -- the superconductor (Bi
) and the semiconductor (Bi
) -- together.
University of Toronto physics professor Ken Burch showed off the roll of tape that helped him to attain a new kind of superconductivity. [Image Source: Diana Tyszko/U of T]
The approach worked, and the researchers were able to get induced superconductivity in the semiconductor host at up to 80 Kelvin. That's a crucial result as liquid nitrogen is slightly below 77K, offering a much cheaper alternative to expensive
liquid helium cooling
or other more radical cryogenic methods.
Professor Ken Burch
, the study's senior author, "Typically, junctions between semi-conductors and superconductors were made by complex material growth procedures and fabricating devices with features smaller than a human hair. However the cuprates have a completely different structure and complex chemical make-up that simply can't be incorporated with a normal semiconductor."
On the novel solution he adds, "Who would have thought simply sticking things together can generate entirely new effects?"
The sticky study has been
[abstract] in the prestigious peer-reviewed journal
. The work funded by a variety of U.S. and Canadian research grants -- with money coming from the
Natural Sciences and Engineering Research Council of Canada
Canadian Foundation for Innovation
Ontario Ministry for Innovation
, and the U.S.
National Science Foundation
University of Toronto
"When an individual makes a copy of a song for himself, I suppose we can say he stole a song." -- Sony BMG attorney Jennifer Pariser
Researchers Develop Better Mini Lasers for Optical Computing
January 26, 2009, 8:15 AM
Scientists Solve Greatest Superconductor Puzzle Yet
August 29, 2008, 7:41 AM
Unraveling The Mystery of Superconductivity
January 2, 2008, 11:12 AM
New Way to Read Data on Ulta Hard Drives
October 23, 2016, 9:38 AM
Asus: LGA 1151 Motherboards Are Ready for Kaby Lake
October 11, 2016, 5:00 AM
LG Gram Laptop
October 10, 2016, 5:00 AM
AMD, Zen Processor might power the upcoming Apple MacBook Pro
September 30, 2016, 5:00 AM
Laptop or Tablet - Which Do You Prefer?
September 20, 2016, 6:32 AM
Microsoft Surface Pro 3 - Battery Issue Fixed
August 30, 2016, 6:30 AM
Most Popular Articles
Car Insurance - The Hidden Discriminatory Practise
October 18, 2016, 5:00 AM
Is Razer Blade Stealth Laptop For You?
October 16, 2016, 5:00 AM
Cyber Hackers Threaten Security of Lifesaving Medical Devices
October 19, 2016, 8:09 AM
Excellent Wi-Fi Camera - Panasonic Lumix DMC-FZ300K
October 18, 2016, 5:00 AM
Problems with Windows 10 – Update Now
October 15, 2016, 7:30 AM
Latest Blog Posts
MacBoo Pro 2016: Release date Oct. 27
Oct 24, 2016, 7:16 AM
Mac Users, Try this if Your Mac is Infected?
Oct 23, 2016, 7:00 AM
Tips to Prevent Smartphones From Overheating:
Oct 22, 2016, 5:00 AM
Nasa Flies Drones at Nevada Airport
Oct 21, 2016, 8:21 AM
T-Mobile Data Problems
Oct 20, 2016, 10:17 AM
Annoying Apple Watch Problems and How to Fix Them
Oct 20, 2016, 5:00 AM
Your Mail May Soon Be Delivered By Robot
Oct 19, 2016, 9:34 AM
2018 Jeep Wrangler Prototype Sells At Junkyard
Oct 18, 2016, 5:00 AM
Samsung Shines with Gold Edition Tablet
Oct 17, 2016, 9:24 AM
Tesla Hints Mysterious Product Debut for October 17th
Oct 16, 2016, 10:14 AM
Samsung Galaxy Note 7 Phones on US flights
Oct 15, 2016, 5:00 AM
Comcast Fined $2.3 Million For Unconfirmed Services Charged To Customers
Oct 14, 2016, 5:00 AM
“American singer / songwriter “Bob Dylan is awarded 2016 Nobel Prize in Literature.
Oct 13, 2016, 10:33 AM
Battery Defect in Medical Device
Oct 12, 2016, 5:00 AM
IBM Bolsters Social Services Sector With Technology Grants
Oct 11, 2016, 5:00 AM
Scientists Sound Alarm on Climate but US Still Toys With Skepticism
Oct 10, 2016, 5:00 AM
IMEX America Trade Show
Oct 9, 2016, 10:00 AM
Phone Wars – Google VS Samsung Free Gifts on Purchase
Oct 6, 2016, 5:00 AM
More Blog Posts
Copyright 2016 DailyTech LLC. -
Terms, Conditions & Privacy Information