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

Mankey, Gary J.

University of Alabama, Tuscaloosa, AL

关键词: Implementation;    36 Materials Science;    Hfir Reactor;    Thin Films;    Ornl;   

DOI  :  10.2172/887250
RP-ID  :  DOE/ER/45966-1
RP-ID  :  FG02-02ER45966
RP-ID  :  887250

美国|英语

来源: UNT Digital Library

【 摘 要 】

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.