Faculty Directory

Jairo Velasco Jr.
  • Title
    • Associate Professor
  • Division Physical & Biological Sciences Division
  • Department
    • Physics Department
  • Phone
    831-459-1806
  • Email
  • Website
  • Office Location
    • Interdisciplinary Sciences Building, 249 ISB
    • Westside Research Park, A164
  • Mail Stop Physics Department

Research Interests

My research aims to characterize and manipulate the properties of two-dimensional materials (2D) with unprecedented sensitivity and atomic scale precision. The properties of these materials are being intensively studied because of their unique electronic and structural attributes, which may form the basis of future nanoelectronic and quantum devices. To perform these studies my lab employs low temperature scanning tunneling microscopy and advanced nanofabrication. I am also interested in the development/application of new surface sensitive techniques to 2D material devices. 

 

Biography, Education and Training

2012 - 2015  Postdoctoral Fellow, University of California, Berkeley 

2012 PhD, University of California, Riverside

2005  B.S., Syracuse University

Honors, Awards and Grants

NSF Early Career 2018

University of California President's Postdoctoral Fellow 2012

Selected Publications

  1. Z. Ge*, D. Wong*, J. Lee, F. Joucken, E.A. Quezada-Lopez, S. Kahn, H.Z. Tsai, T. Taniguchi, K. Watanabe, F. Wang, Z. Zettl, M.F. Crommie, J. Velasco Jr., "Imaging Quantum Interference in Stadium-Shaped Monolayer and Bilayer Graphene Quantum Dots," Nano Letters (2021)
  2. Z. Ge*, S. Slizovskiy*, F. Joucken, E.A. Quezada-Lopez, T. Taniguchi, K. Watanabe, V. Fal'ko, J.Velasco Jr., "Control of Giant Topological Magnetic Moment and Valley Splitting in Trilayer Graphene", Physical Review Letters (2021)
  3. F. Joucken, C. Bena, Z. Ge, E.A. Quezada-Lopez, F. Ducastelle, T. Taniguchi, K. Watanabe, J. Vealsco Jr.,"Sublattice dependence and gate-tunability of midgap and resonant states induced by native dopants in Bernal-stacked bilayer graphene", Physical Review Letters (2021) 
  4. F. Joucken, C. Bena, Z. Ge, E.A. Quezada-Lopez, S. Pinon, V. Kaladzhyan, T. Taniguchi, K. Watanabe, J. Velasco Jr.,"Direct Visualization of Native Defects in Graphite and Their Effect on the Electronic Properties of Bernal Stacked Bilayer Graphene", Nano Letters (2021)
  5. Z. Ge*, F. Joucken*, E. Quezada-Lopez*, D. R. da Costa, J. Davenport, B. Giraldo, T. Taniguchi, K. Watanabe, N. P. Kobayashi, T. Low, J. Velasco Jr., "Visualization and Manipulation of Bilayer Graphene Quantum Dots with Broken Rotational Symmetry and Nontrivial Topology", Nano Letters 20, 8682 (2020)
  6. F. Joucken*,  J. Avila*, Z. Ge, E. Quezada-Lopez, H. Yi, R. Le Goff, E. Baudin, J.L. Davenport, K. Watanabe, T. Taniguchi, M. Carmen-Asensio, and J. Velasco Jr., "Visualizing the Effect of an Electrostatic Gate with Angle-Resolved Photoemission Spectroscopy", Nano Letters (19), 2682-2687 (2019)       
  7. J. Velasco Jr.*, L. Ju*, D. Wong*, S. Kahn, J. Lee, H.Z. Tsai, C. Germany, S. Wickenburg, J. Lu, T. Taniguchi, K. Watanabe, A. Zettl, F. Wang, M.F. Crommie, "Nanoscale Control of Rewriteable Doping Patterns in Pristine Graphene/Boron Nitride Heterostructures", Nano Letters 16, 1620-1624 (2016)  
  8. D. Wong*, J. Velasco Jr.*, L. Ju*, J. Lee, S. Kahn, H.Z. Tsai, C. Germany, T. Taniguchi, K. Watanabe, A. Zettl, F. Wang, M. F. Crommie, “Characterization and manipulation of individual defects in insulating hexagonal boron nitride using scanning tunneling microscopy”, Nature Nanotechnology 10, 949-953 (2015)
  9.  L. Ju*, J. Velasco Jr.*, E. Huang, S. Kahn, C. Nosiglia, Hsin-Zon Tsai, W. Yang, T. Taniguchi, K. Watanabe, Y. Zhang, G. Zhang, M. Crommie, A. Zettl, F. Wang, “Photo-induced Doping in Graphene/Boron Nitride Heterostructures” Nature Nanotechnology 9, 348–352 (2014)
  10. J. Velasco Jr., L. Jing, W. Bao, Y. Lee, P. Kratz, V. Aji, M. Bockrath, C.N. Lau, C. Varma, R. Stillwell, D. Smirnov, F. Zhang, J. Jung, A.H. MacDonald, “Transport Spectroscopy of Symmetry-Broken Insulating States in Bilayer Graphene”, Nature Nanotechnology 7, 156–160 (2012)