John Hankinson

EDUCATION
Ph.D., Condensed Matter Physics Georgia Institute of Technology, 2015
B.S., Physics, Harvey Mudd College, 2007

RESEARCH EXPERTISE
Thin film growth, nano-lithography, and low-temperature electronic transport.  Materials characterization including Raman spectroscopy, electron microscopy (SEM), scanning probe microscopy (AFM, EFM, I-AFM, LFM), and ellipsometry.  Current areas of research include renewable energy systems, energy storage, Martian in-situ resource utilization, and advanced sensor networks.

RECENT PUBLICATIONS, PRESENTATIONS, AND PATENTS

Articles
J. Parker, D. Mar, S. Von der Porten, J. Hankinson, K. Byram, C. Lee, M. K. Mayeda, R. Haskell, Q. Yang, S. Greenfield, R. Epstein Thermal links for the implementation of an optical refrigerator.  Journal of Applied Physics 105, 013116 (2009)

X. Wu, Y. Hu, M. Ruan, N. K. Madiomanana, J. Hankinson, M. Sprinkle, C. Berger, W. A. de Heer Half integer quantum Hall effect in high mobility single layer epitaxial graphene.  Applied Physics Letters 95, 223108 (2009)

M. Sprinkle, M. Ruan, X. Wu, Y. Hu, M. Rubio-Roy, J. Hankinson, C. Berger, W. A. de Heer Scalable Templated growth of graphene nanoribbons on SiC.  Nature Nanotechnology 5, 727 (2010)

W. A. de Heer, C. Berger, M. Ruan, M. Sprinkle, X. Li, Yike Hu, B. Zhang, J. Hankinson, E.H. Conrad  Large area and structured epitaxial graphene produced by confinement controlled sublimation of silicon carbide.  PNAS 108 (41) 16900 (2011)

J. Hicks, R. Arora, E. Kenyon, P. S. Chakraborty, H. Tinkey, J. Hankinson, C. Berger, W A. de Heer, E. H. Conrad, J. D. Cressler  X-ray radiation effects in multilayer epitaxial graphene.  App. Phys. Lett. 99, 232102 (2011)

V. K. Kodali, J. Scrimgeour, S. Kim, J. Hankinson, K. M. Carroll, W. A. de Heer, C. Berger, J. E. Curtis Nonperturbative Chemical Modification of Graphene for Protein Micropatterning. Langmuir 27, 3 (2011)

R. G. Mani, J. Hankinson, C. Berger, W. A. de Heer Observation of resistively detected hole spin resonance and zero-field pseudo-spin splitting in epitaxial graphene. Nature Communications 3, 996 (2012)

M. Ruan, Y. Hu, Z. Guo, R. Dong, J. Palmer, J. Hankinson, C. Berger, W. A. de Heer Epitaxial graphene on silicon carbide: Introduction to structured graphene. MRS Bulletin 37 12 (2012)

Z. Guo, R. Dong, P. S. Chakraborty, N. Lourenco, J. Palmer, Y. Hu, M. Ruan, J. Hankinson, J. Kunc, J. D. Cressler, C. Berger, W. A. de Heer Record Maximum Oscillation Frequency in C-face Epitaxial Graphene transistors. Nano Letters 13, 942 (2013)

J. Palmer, J. Kunc, Y. Hu, J. Hankinson, Z Guo, C. Berger, and W. A. de Heer Controlled epitaxial graphene growth within removable amorphous carbon corrals.  Appl. Phys. Lett. 105, 023106 (2014)

R. Dong, Z. Guo, J. Palmer, Y. Hu, M. Ruan, J. Hankinson, J. Kunc, S. K. Bhattacharya, C. Berger, W. A. de Heer, Wafer bonding solution to epitaxial graphene-silicon integration.  J. Phys D: Applied Physics 47, 9 (2014)

J. Kunc, Y. Hu, J. Palmer, Z. Guo, J. Hankinson, S. H. Gamal, C. Berger, W. A. de Heer, Planar Edge Schottky Barrier-Tunneling Transistors Using Epitaxial Graphene/SiC Junctions.  Nano Letters 14, 9 (2014)

R. Puybaret, J. Hankinson, J. Palmer, C. Bouvier, A. Ougazzaden, P. L. Voss, C. Berger, W. A. de Heer Scalable control of graphene growth on 4H-SiC C-face using decomposing silicon nitride masks.  J. Phys D: Applied Physics 48, 15 (2015)

J. Park, C. Perini, T. Liu, J. Hankinson, E.M. Vogel, M. Navaei, S.W. Lee, & I. Stern (2017). Interfacial Li-Ion Storage between Graphene Layers. ECS Transactions, 77(11), 19-25.

Presentations
J. Hankinson, M. Ruan, J. Palmer, W. Yu, R. Dong, C. Huan, Z. Jiang, C. Berger, & W. de Heer (2013, March). Electronic and Magnetic Properties of Epitaxial Graphene Sidewall Nanoribbons. APS March Meeting.