1. Forschungszentrum
Jülich GmbH, Jülich Centre for Neutron Science (JCNS),
Outstation at Spallation Neutron Source (SNS), Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6473, United States
2. Chemical
and Engineering Materials Division, Oak Ridge National Laboratory, Oak
Ridge, Tennessee 37831-6475, United States
3. Quantum
Condensed Matter Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6475, United States
4. NIST Center for
Neutron Research, Gaithersburg, Maryland 20879-8562, and Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
5. Department
of Chemical Engineering, Columbia University, New York, New York 10027, United States
6. DuPont Central
Research
and Development, Wilmington, Deleware 19880-0400, United States