1. Engineering Physics Division, National Institute of Standards and Technology, 100 Bureau Drive, MS 8120, Gaithersburg, Maryland 20899, USA
2. Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
3. NASA’s Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109, USA
4. National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, USA