1. Department of Mechanical and Materials Engineering, University of Nebraska, W342 NH, Lincoln, Nebraska 68588-0526
2. Nebraska Center for Energy Sciences Research, University of Nebraska, 230 Prem S. Paul Research Center at Whittier School, 2200 Vine Street, Lincoln, Nebraska 68583-0857
3. Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
4. Department of Electrical and Computer Engineering, University of Nebraska, 209N Scott Engineering Center, P.O. Box 880511, Lincoln, Nebraska 68588-0511
5. Department of Physics and Astronomy, University of Nebraska, 208 Theodore Jorgensen Hall, 855 N 16th Street, Lincoln, Nebraska 68588-0299