Author Affiliations

Pavel Kolchin,^1,* Nitipat Pholchai,^1,2 Maiken H. Mikkelsen,¹ Jinyong Oh,³ Sadao Ota,¹ M. Saif Islam,³ Xiaobo Yin,¹ and Xiang Zhang^1,2,4

¹NSF Nanoscale Science and Engineering Center (NSEC), 3112 Etcheverry Hall, University of California, Berkeley, CA 94720, USA

²Applied Science and Technology Graduate Group, University of California, Berkeley, CA 94720, USA

³Department of Electrical and Computer Engineering, 2064 Kemper Hall, University of California, Davis, CA95616, USA

⁴Materials Science Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA

^*Corresponding author: pdkolchin@gmail.com