Affiliation: | 1. Physics Department, University of Maryland, College Park, MD 20742 (USA);2. Materials Research Science and Engineering Center, University of Maryland, College Park, MD 20742 (USA);3. Center for Superconductivity Research, University of Maryland, College Park, MD 20742 (USA);4. Laboratory for Physical Sciences, College Park, MD 20742 (USA);5. Institute for Physical Science and Technology, University of Maryland, College Park, MD 20742 (USA) |