About the Authors
- Dan M. Popescu
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Affiliation Department of Physics, University of Richmond, Richmond, Virginia, United States of America
- Ovidiu Lipan
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* E-mail: olipan@richmond.edu
Affiliation Department of Physics, University of Richmond, Richmond, Virginia, United States of America
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: DMP OL. Performed the experiments: DMP OL. Analyzed the data: DMP OL. Contributed reagents/materials/analysis tools: DMP OL. Wrote the paper: DMP OL.