X-ray and neutron scattering

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Small-Angle Neutron Scattering (SANS) Study of Star-Branched Polymers in the Molten State

Materials Science Forum Trans Tech Publications 27-28 (1988) 445-450

Authors:

JC Horton, GL Squires, AT Boothroyd, LJ Fetters, AR Rennie, CJ Glinka, RA Robinson, J Klein
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Small-Angle Neutron Scattering (SANS) Study of Star-Branched Polymers in Dilute Solution

Materials Science Forum Trans Tech Publications 27&28 (1988) 451-456

Authors:

AT Boothroyd, GL Squires, LJ Fetters, AR Rennie, AMBG de Vallera, JC Horton
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Local-scale structures across the morphotropic phase boundary in PbZr1-xTixO3.

IUCrJ
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Phase separation, memory effects, and magnetization steps in single crystalline La1.1Sr1.9Mn2O7

PHYS REV B 74:13 132407

Authors:

S Nair, AK Nigam, AV Narlikar, D Prabhakaran, A Boothroyd

Abstract:

The magnetic ground state of a single crystalline bilayered manganite La1.1Sr1.9Mn2O7 is investigated using bulk magnetic measurements. Besides large relaxation times, memory effects reminiscent of that seen in spin glasses are also observed both in the field cooled and zero field cooled measurement protocols. These indicate that this system is not a canted antiferromagnet as was reported earlier, but on the contrary has an inhomogenous magnetic ground state arising as a consequence of phase separation. We also report the observation of sharp metamagnetic steps in this bilayered manganite, similar to that seen in phase separated three-dimensional perovskites.
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