Navigation Links
UBC physicists develop 'impossible' technique to study and develop superconductors
Date:6/23/2008

A team of University of British Columbia researchers has developed a technique that controls the number of electrons on the surface of high-temperature superconductors, a procedure considered impossible for the past two decades.

Led by Physics Assoc. Prof. Andrea Damascelli, the team deposited potassium atoms onto the surface of a piece of superconducting copper oxide. The approach allows the scientists to continuously manipulate the number of electrons on ultra-thin layers of material.

The details are published this week in the prestigious journal Nature Physics.

Superconductivity the phenomenon of conducting electricity with no resistance occurs in some materials at very low temperatures. High-temperature superconductors are a class of materials capable of conducting electricity with little or no resistance in temperatures as high as -140 degrees Celsius.

"The development of future electronics, such as quantum computer chips, hinges on extremely thin layers of material," says Damascelli, Canada Research Chair in the Electronic Structure of Solids.

"Extremely thin layers and surfaces of superconducting materials take on very different properties from the rest of the material. Electrons have been observed to re-arrange, making it impossible for scientists to study," says Damascelli. "It's become clear in recent years that this phenomenon is both the challenge and key to making great strides in superconductor research.

"The new technique opens the door to systematic studies not just of high-temperature superconductors, but many other materials where surfaces and interfaces control the physical properties," says Damascelli. "The control of surfaces and interfaces plays a vital role in the development of applications such as fuel cells and lossless power lines, and may lead to new materials altogether."

The superconductors Damascelli's team experimented on are the purest samples currently available and were produced at UBC by physicists Doug Bonn, Ruixing Liang and Walter Hardy.

Part of the study was carried out at the Advanced Light Source synchrotron in California. In the future, the design and study of novel complex materials for next-generation technologies will be carried out at the Quantum Materials Spectroscopy Center currently under construction at the Canadian Light Source in Saskatoon under Damascelli's leadership.


'/>"/>

Contact: Brian Lin
brian.lin@ubc.ca
604-822-2234
University of British Columbia
Source:Eurekalert

Related biology technology :

1. Physicists pin down spin of surface atoms
2. Sheet of carbon atoms acts like a billiard table, physicists find
3. Sheet of carbon atoms acts like a billiard table, physicists find
4. Physicists discover gold can be magnetic on the nanoscale
5. Physicists discover how fundamental particles lose track of quantum mechanical properties
6. UM physicists show electrons can travel over 100 times faster in graphene than in silicon
7. Physicists saved from drowning in complexities of wetting theory
8. New unifying theory of lasers advanced by physicists
9. Discovery by UC Riverside physicists could enable development of faster computers
10. EpiCept Reports Expansion of Clinical Development For Licensed Cancer Compound
11. Anesiva to Host Conference Call and Webcast Tomorrow to Discuss Encouraging Development in Zingo(TM) Program
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/8/2016)... ... 2016 , ... This CAST literature review and report looks at problems caused ... the economic effects in countries that are major global commodity exporters and importers, which ... risk of low level presence (LLP) puts large volumes of trade worth billions of ...
(Date:12/8/2016)... N.J. , Dec. 8, 2016 Soligenix, ... biopharmaceutical company focused on developing and commercializing products to ... need, announced today that it will be hosting an ... am ET on the origins of innate defense regulators ... a review of oral mucositis and the recently announced ...
(Date:12/8/2016)... 2016 Savannah River Remediation LLC group ... NewTechBio,s NT-MAX Lake & Pond Sludge and ... in conjunction with Hexa Armor/ Rhombo cover manufactured ... Pollutant Discharge Elimination System requirements. The ... history of elevated pH levels, above 8.5, especially ...
(Date:12/8/2016)... 2016  Partnering to fuel Philadelphia,s ... of Southeastern Pennsylvania (" Ben ... of Independence Blue Cross; and Safeguard Scientifics ("Safeguard") (NYSE: ... a $6 million funding initiative over a four year ... Responding to a burgeoning economic vitality in digital health, ...
Breaking Biology Technology:
(Date:12/7/2016)... , Dec. 7, 2016   Avanade is ... Formula One teams in history, exploit biometric data in ... performance and maintain the competitive edge against their rivals ... Avanade has worked with Williams during ... of biometric data (heart rate, breathing rate, temperature and ...
(Date:12/5/2016)... , Dec. 5, 2016  The Office ... today published "Can CT Scans Enhance or Replace ... the potential of supporting or replacing forensic autopsies ... CT scan. In response to recommendations ... is exploring using CT scans as a potential ...
(Date:11/29/2016)... BioDirection, a privately held medical device company developing novel ... concussion and other traumatic brain injury (TBI), announced today ... the U.S. Food and Drug Administration (FDA) to review ... meeting company representatives reviewed plans for clinical development of ... a planned pilot trial. "We are ...
Breaking Biology News(10 mins):