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Title: UA/ORNL Collaboration: Neutron Scattering Studies of Antiferromagnetic Films, Final Report

Technical Report ·
DOI:https://doi.org/10.2172/887250· OSTI ID:887250

The work reported here was a collaborative project between the research groups of Dr. J.L. Robertson at Oak Ridge National Laboratory and Dr. G.J. Mankey at the University of Alabama. The main thrust is developing neutron optical devices and materials for the study of magnetic thin films and interfaces. The project is particularly timely, since facility upgrades are currently underway at the High Flux Isotope Reactor. A new neutron optical device, a multicrystal analyzer, was designed and built to take maximum advantage of the increased flux that the upgraded beamlines at HFIR will provide. This will make possible detailed studies of the magnetic structure of thin films, multilayers, and interfaces that are not feasible at present. We performed studies of the antiferromagnetic order in thin films and crystals using neutron scattering, determined magnetic structures at interfaces with neutron reflectometry and measured order in magnetic dispersions using small angle neutron scattering. The collaboration has proved fruitful: generating eleven publications, contributing to the training of a postdoc who is now on staff at the High Flux Isotope Reactor and providing the primary support for two recent Ph.D. recipients. The collaboration is still vibrant, with anticipated implementation of the multicrystal analyzer on one of the new cold source beamlines at the High Flux Isotope Reactor.

Research Organization:
University of Alabama, Tuscaloosa, AL
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
FG02-02ER45966
OSTI ID:
887250
Report Number(s):
DOE/ER/45966-1; TRN: US200719%%382
Country of Publication:
United States
Language:
English