"This new approach may yield ways to predict and control electronic transport behavior by 'tuning' the molecular components, resulting in capabilities that can be used to design new solar-based energy schemes," Newton said.
Two-Dimensional Fluctuating Superconductivity
Embargoed for release on Thursday, March 13, 2008, 8:36 a.m. Central Time (9:36 a.m. Eastern)
Scientists at Brookhaven Lab have discovered a state of two-dimensional (2D) fluctuating superconductivity in a high-temperature superconductor with a particular arrangement of electrical charges known as "stripes." The finding was uncovered during studies of directional dependence in the material's electron-transport and magnetic properties. In the 2D plane, the material acts as a superconductor - conducts electricity with no resistance - at a significantly higher temperature than in the 3D state.
"The results provide many insights into the interplay between the stripe order and superconductivity, which may shed light on the mechanism underlying high-temperature superconductivity," said Brookhaven physicist Qiang Li, who will present this work in room RO7 on Thursday, March 13, 2008 at 8:36 a.m. Central Time.
Understanding the mechanism of high-temperature superconductivity is one of the outstanding scientific issues in condensed matter physics, Li said. Understanding this mechanism could lead to new strategies for increasing the superconducting transition temperature of other superconductors to make them more practical for applications such as electrical transmission lines.
"As electricity demand increases, the challenge to the national electricity grid to provide reliable power will soon grow
|Contact: Karen McNulty Walsh|
DOE/Brookhaven National Laboratory