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| PhD, 2002, University of California at Berkeley Curriculum Vitae Honors and Awards: CRC Press Freshman Chemistry Award (1994) Boston University, College of Arts and Sciences Award for Excellence in Physics (1997) Summa Cum Laude (1997) Phi Beta Kappa (1997) IBM Research Fellowship (2001-2002) Nominated for Packard Fellowship in Science and Engineering (2006) Minta Martin Award (2006) The MSGS and MatES Award for Outstanding Advising in Materials Science and Engineering (2007) Sigma Xi (2008) |
| Research: The current trend of miniaturization in virtually every industry is illuminating new questions about the behavior of matter on small length scales. When devices and systems of interest contain only a few thousand atoms, neither the fundamental theories of quantum mechanics nor theories of the continuum limit are practical for predicting dynamic behavior. This is the realm of nanoscience and nanotechnology, and it is here that basic notions of the physics of matter-- friction and wear, how electrons flow, and how heat is generated and dissipated, come into question. Ultimately, the guiding physical principles will come from direct observation of operational systems at the nanoscale. The primary goal of my research is to advance the current understanding of the dynamic properties of nanoscale systems. The future of many fields of the physical and biological sciences lies in nanotechnology, and as the size of functional devices progresses ever smaller, there will inevitably be problems that can only be addressed by direct real-time observations. A number of research groups are focusing on using scanned probe techniques, such as scanning tunneling microscopy (STM) and atomic-force microscopy (AFM), to explore dynamic properties at the nanoscale, but these slow imaging techniques are poor at capturing these effects. My research goes beyond this approach by using real-time imaging techniques, such as transmission electron microscopy (TEM) to explore fundamental physics on small length scales. To learn more about electron microscopy, visit the University of Maryland's NISP lab website. |
| 1) | John Cumings, P.G. Collins, and A. Zettl. Peeling and sharpening multiwall nanotubes. Nature, 406(6796), p.586 (2000) pdf |
| 2) | John Cumings, A. Zettl. Low-friction nanoscale linear bearing realized from multiwall carbon nanotubes. Science, 289(5479), p.602 (2000) pdf |
| 3) | John Cumings, M. McCartney, J. C. H. Spence, and A. Zettl , Physical Review Letters, 88(5), 056804 (2002) pdf |
| 4) | John Cumings and A. Zettl, Localization and nonlinear resistance in telescopically extended nanotubes, Physical Review Letters, 93(8), 086801 (2004) pdf |
| 5) | John Cumings, A. Zettl, and M. R. McCartney, Carbon Nanotube Electrostatic Biprism: Principle of Operation and Proof of Concept. Microscopy and Microanalysis, 10(4), p.420 (2004) pdf |
| 1) | A. Zettl and John Cumings. Elastic properties of fullerenes, in Handbook of Elastic Properties of Solids, Liquids, and Gases, Levy, Bass, and Stern, Eds. (Academic Press, 2000) Chap. 11, p.163 pdf |
| 2) | John Cumings and A. Zettl, Electrical and Mechanical Properties of Nanotubes Determined using In-Situ TEM Probes, in Applied Physics of Nanotubes: Fundamentals of Theory, Optics and Transport Devices, Slava V. Rotkin, Shekhar Subramoney, Eds.; Series: Nanoscience and Nanotechnology, Ph. Avouris, Ser.Ed. (Springer Verlag GmbH & Co. KG, 2005) Chap. 11, p.273 pdf |
| 3) | John Cumings, Eva Olsson, Amanda K. Petford-Long, and Yimei Zhu, Electric and Magnetic Phenomena Studied by In-Situ Transmission Electron Microscopy, MRS Bulletin, 33(2), p. 101 (2008) pdf |
| 1) | John Cumings, P.G. Collins, and A. Zettl. Peeling and sharpening multiwall nanotubes. Nature, 406(6796), p.586 (2000) pdf |
| 2) | John Cumings, A. Zettl. Low-friction nanoscale linear bearing realized from multiwall carbon nanotubes. Science, 289(5479), p.602 (2000) pdf |
| 3) | John Cumings and A. Zettl. Mass-production of boron nitride double-wall nanotubes and nanococoons. Chemical Physics Letters, 316(3-4), p.211 (2000) pdf |
| 4) | M. Ishigami, John Cumings, A. Zettl, S. Chen, and U. Dahmen. A simple method for the continuous production of carbon nanotubes. Chemical Physics Letters, 319(5-6), p.457 (2000) pdf |
| 5) | E. A. Stach, T. Freeman, A. M. Minor, D. K. Owen, John Cumings, M. A. Wall, T. Chraska, R. Hull, J. W. Morris, A. Zettl, and U. Dahmen. Development of a nanoindenter for in situ transmission electron microscopy. Microscopy and Microanalysis, 7(6), p.507 (2001) pdf |
| 6) | W. Q. Han, John Cumings, X. S. Huang, K. Bradley, and A. Zettl. Synthesis of aligned BxCyNz nanotubes by a substitution-reaction route. Chemical Physics Letters, 346(5-6), p.368 (2001) pdf |
| 7) | W. Q. Han, John Cumings, and A. Zettl. Pyrolytically grown arrays of highly aligned BxCyNz nanotubes. Applied Physics Letters, 78(18), p.2769 (2001) pdf |
| 8) | B. G. Demczyk, John Cumings, A. Zettl, and R. O. Ritchie. Structure of boron nitride nanotubules. Applied Physics Letters, 78(18), p.2772 (2001) pdf |
| 9) | A. Zettl and John Cumings. Sharpened nanotubes, nanobearings, and nanosprings, in Electronic Properties of Novel Materials-- Molecular Nanostructures, H. Kuzmany, J. Fink, M. Mehring, and S. Roth, eds. (American Institute of Physics, New York, 2000) p.526 pdf |
| 10) | A. Zettl and John Cumings, Electromechanical properties of multiwall carbon nanotubes. In Nanonetwork Materials: Fullerenes, Nanotubes, and Related Systems, (AIP Conference Proceedings 590, American Institute of Physics, Melville, New York 2001) p.107 (2001) pdf |
| 11) | John Cumings, M. R. McCartney, J. C. H. Spence, and A. Zettl. Electron holography of field-emitting carbon nanotubes, in Electronic Properties of Molecular Nanostructures, H. Kuzmany, J. Fink, M. Mehring, and S. Roth, eds. (American Institute of Physics, New York, 2001) p.572 pdf |
| 12) | John Cumings and A. Zettl. Field emission properties of boron nitride nanotubes, in Electronic Properties of Molecular Nanostructures, H. Kuzmany, J. Fink, M. Mehring, and S. Roth, eds. (American Institute of Physics, New York, 2001) p.577 pdf |
| 13) | John Cumings, M. McCartney, J. C. H. Spence, and A. Zettl , Physical Review Letters, 88(5), 056804 (2002) pdf |
| 14) | W. Mickelson, John Cumings, W. Q. Han, and A. Zettl, Effects of carbon doping on superconductivity in magnesium diboride. Physical Review B, 65(8), 052505 (2002) pdf |
| 15) | W. Q. Han, W. Mickelson, John Cumings, and A. Zettl, Transformation of BxCyNz nanotubes to pure BN nanotubes. Applied Physics Letters, 81(6), p.1110, 2002 Aug 5. pdf |
| 16) | B. G. Demczyk, Y. M. Wang, John Cumings, M. Hetman, W. Q. Han, A. Zettl, and R. O. Ritchie, Direct mechanical measurement of the tensile strength and elastic modulus of multiwalled carbon nanotubes. Materials Science & Engineering A-Structural Materials Properties Microstructure & Processing, 334(1-2), p.173 (2002) pdf |
| 17) | John Cumings and A. Zettl, Resistance of telescoping nanotubes, in Structural and Electronic Properties of Molecular Nanostructures, H. Kuzmany, J. Fink, M. Mehring, and S. Roth, eds. (American Institute of Physics, New York, 2002) p.227 pdf |
| 18) | A. Zettl, John Cumings, W. Q. Han, and W. Mickelson, Boron nitride nanotube peapods, in Structural and Electronic Properties of Molecular Nanostructures, H. Kuzmany, J. Fink, M. Mehring, and S. Roth, eds. (American Institute of Physics, New York, 2002) p.140 pdf |
| 19) | W. Mickelson, S. Aloni, Wei-Qiang Han, John Cumings, and A. Zettl, Packing C60 in Boron Nitride Nanotubes. Science, 300(5618), p.467 (2003) pdf |
| 20) | John Cumings, W. Mickelson, and A. Zettl, Simplified synthesis of double-wall carbon nanotubes. Solid State Communications, 126(6), p.359 (2003) pdf |
| 21) | Keith Bradley, John Cumings, Alexander Star, Jean-Christophe P. Gabriel, and George Grüner, Influence of mobile ions on nanotube based FET devices. Nano Letters, 3(5), p.639 (2003) pdf |
| 22) | A. M. Fennimore, T. D. Yuzvinsky, Wei-Qiang Han, M. S. Fuhrer, J. Cumings, A. Zettl Rotational actuators based on carbon nanotubes. Nature, 424(6947), p.408 (2003) pdf |
| 23) | John Cumings and A. Zettl, Field emission and current-voltage properties of boron nitride nanotubes. Solid State Communications, 129(10), p.661 (2004) pdf |
| 24) | John Cumings and A. Zettl, Localization and nonlinear resistance in telescopically extended nanotubes, Physical Review Letters, 93(8), 086801 (2004) pdf |
| 25) | John Cumings, A. Zettl, and M. R. McCartney, Carbon Nanotube Electrostatic Biprism: Principle of Operation and Proof of Concept. Microscopy and Microanalysis, 10(4), p.420 (2004) pdf |
| 26) | John Cumings, L. S. Moore, H. T. Chou, K. C. Ku, G. Xiang, S. A. Crooker, N. Samarth, and D.Goldhaber-Gordon, A Tunable Anomalous Hall Effect in a Non-Ferromagentic System. Physical Review Letters, 96(19), 196404 (2006). pdf |
| 27) | C. H. L. Quay, John Cumings, S. J. Gamble, A. Yazdani, H. Kataura, and D. Goldhaber-Gordon, Transport properties of carbon nanotube C60 peapods. Physical Review B, 76(7), 073404 (2007). pdf |
| 28) | C. H. L. Quay, John Cumings, S. J. Gamble, R. de Picciotto, H. Kataura, and D. Goldhaber-Gordon, Magnetic field dependence of the spin-1/2 and spin-1 Kondo effects in a quantum dot, Physical Review B, 76(24), 245311 (2007). pdf |
| 29) | I-Kai Hsu, Rajay Kumar, Adam Bushmaker, Stephen B. Cronin, Michael T. Pettes, Li Shi, Todd Brintlinger, Michael S. Fuhrer, and John Cumings, Optical measurement of thermal transport in suspended carbon nanotubes, Applied Physics Letters, 92(6), 063119 (2008). pdf |
| 30) | Todd Brintlinger, Yi Qi, Kamal H. Baloch, D. Goldhaber-Gordon, and John Cumings, Electron Thermal Microscopy, Nano Letters, 8(2), 582 (2008). pdf |
| 31) | Yi Qi, T. Brintlinger, and John Cumings, Direct observation of the ice rule in artificial kagome spin ice, Physical Review B, 77(9), 094418 (2008). pdf |