Bulletin of the American Physical Society
APS March Meeting 2011
Volume 56, Number 1
Monday–Friday, March 21–25, 2011; Dallas, Texas
Abstract: K1.00209 : Oxygen staging in phase separated La$_{2-x}$Sr$_{x}$CuO$_{4+y}$
Author:
We studied oxygen staging in a series of
La$_{2-x}$Sr$_{x}$CuO$_{4}$ (LSCO)
samples using neutron scattering. The samples were oxidized using
electrochemistry. Electronic phase separation was previously
reported in the
oxygen rich LSCO system with two stable phases identified as
optimally doped
superconducting phase and a magnetic phase (1/8th like) with the
same
ordering temperatures at 40 K . Our present studies show staging
in this
system. Although staging was observed and extensively studied in
the samples
with no Sr, it has not been reported or systematically studied
in the
systems with both Sr and oxygen. We do find staging in the
oxygenated LSCO
system, but the staging peaks evolve as Sr concentration
increases and
excess oxygen concentration decreases.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2011.MAR.K1.209
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