Affiliation: | 1. Department of Materials Science and NanoEngineering, Rice University, Houston, TX, USA;2. Department of Physics and Astronomy, Rice University, Houston, TX, USA;3. Department of Electrical and Computer Engineering, Rice University, Houston, TX, USA;4. Department of Electrical and Computer Engineering, University of Houston, Houston, TX, USA;5. Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, China |