[1] Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA
[2] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA
[3] Univ Delaware, Dept Chem & Biomol Engn, Newark, DE 19716 USA
[4] Univ Edinburgh, Ctr Sci Extreme Condit, Edinburgh EH9 3FD, Midlothian, Scotland
[5] Univ Maryland, Dept Chem & Biochem, College Pk, MD 20742 USA