"Many people consider the disappearance of superconductivity that occurs when the pseudogap phase emerges as an indication that the pseudogap is the killer of room temperature superconductivity in the copper-oxides," said study leader Séamus Davis, director of the ❋ Unknown (2010)
Recently, scientists have focused on trying to understand and control an electronic phase called the "pseudogap" phase, which is non-superconducting and is observed at a temperature above the superconducting phase. ❋ Unknown (2010)
This "pseudogap" phase may extend all the way to room temperature in some materials, so learning to overcome its limitations could lead to room-temperature superconductors. ❋ Unknown (2010)
In a major step toward understanding the mysterious "pseudogap" state in high-temperature cuprate superconductors, a team of Cornell, Binghamton University and Brookhaven National ❋ Unknown (2010)
A decade ago, scientists discovered an analogous "pseudogap" in high-temperature superconductors, at temperatures above the superconducting threshold Tc, that was originally thought to also be related to electron pairing. ❋ Unknown (2010)
Key advance in understanding 'pseudogap' phase in high-Tc superconductors ❋ Unknown (2010)
(PhysOrg. com) -- Cornell researchers and colleagues have produced the first atomic-scale description of what electrons are doing in the mysterious "pseudogap" in high-temperature superconductors. ❋ Unknown (2009)
On the basis of these ideas I was able to explain almost all the unusual behavior of the high-Tc layered cuprates, including the isotope effect, neutron scattering, pseudogap and the metal-insulator transition. ❋ Unknown (2004)
I also predicted the so-called large pseudogap in the cuprates that was eventually discovered by Prof. Shen in photoemission from samples in extreme underdoping. ❋ Unknown (1999)
"Detecting a difference in electron behavior at the two oxygen sites within each copper-oxide unit at the pseudogap energy may be a very significant step toward identifying exactly what the pseudogap state is and how it affects superconductivity." ❋ Unknown (2010)
The scientists will pursue their pseudogap research, first by looking for a similar broken symmetry in other copper-oxide superconductors. ❋ Unknown (2010)
Now scientists have discovered a fundamental difference in how electrons behave at the two distinct oxygen-atom sites within each copper-oxide unit, which appears to be a specific property of the non-superconducting pseudogap phase. ❋ Unknown (2010)
But what form of electronic order (if any) characterizes the pseudogap phase has remained a frustrating and challenging mystery. ❋ Unknown (2010)
The research - described in the July 15, 2010, issue of Nature - may lead to new approaches to understanding the pseudogap phase, which has been hypothesized as a key hurdle to achieving room-temperature superconductivity. ❋ Unknown (2010)
Across the entire copper-oxide crystal, the scientists found a remarkable difference in the electronic states associated with the mysterious pseudogap phase: The number of electrons able to "tunnel" to the microscope tip differed depending on the position of the oxygen atom relative to the copper atom. ❋ Unknown (2010)
