Ali Yazdani talks with
ScienceWatch.com and answers a few questions about
this month's Fast Breaking Paper in the field of Physics.
The author has also sent along images of their
work.
Article Title: Visualizing pair formation on the
atomic scale in the high-T-c superconductor
Bi2Sr2CaCu2O8+delta
Authors: Gomes, KK;Pasupathy, AN;Pushp, A;Ono, S;Ando,
Y;Yazdani,
A
Journal: NATURE
Volume: 447
Issue: 7144
Page: 569-572
Year: MAY 31 2007
* Princeton Univ, Joseph Henry Labs, Dept Phys, Princeton,
NJ 08544 USA.
(addresses have been truncated)
Figures and descriptions:
Figure 1:
Figure 1:
Using a customized microscope,
Princeton scientists have mapped the
strength of current-carrying electron
pairs as they form in a ceramic
superconductor. The images show the
same 30-nanometer square region of the
ceramic at successively cooler
temperatures. Red areas indicate the
presence of superconducting pairs. Even
at 10 degrees Celsius above Tc, the
temperature at which the entire sample
exhibits superconductivity, the
electron pairs still exist in localized
regions (top image). Image courtesy of
the Yazdani Group.