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Stuart Tessmer, Associate Professor

Stuart TessmerE-mail:
Research Description PDF


B.S., 1989, University of Washington
M.S., 1992, University of Illinois, Urbana-Champaign
Ph.D., 1995, University of Illinois, Urbana-Champaign
Postdoc 1996-1998, Massachusetts Institute of Technology

Joined CMP group: 1998

Research Interests

We develop and apply low-temperature scanning probe techniques to study the behavior of charges in nanoscale systems. Areas of interest include nanoelectronics, correlated electron systems, semiconductor defects and interfaces, superconductivity, quantum interference and confinement, and bio-electronics.

An Examplescientific image

One of our experimental methods is called Charge Imaging, which is based on a charge sensor with a noise level of 0.01 electrons per root Hz. The method has proven to be capable of resolving the quantum structure of electrons trapped on donors at cryogenic temperatures. The schematic shows a recent experiment, published in Nature Physics, which detected individual electrons entering small clusters of Si atoms below the surface of a galliumarsenide semiconductor. Please click on the Website link above to see more about this technique and others.

research groupLeft: Our research group "inspecting" a helium-3 cryostat. The system reaches a base temperature of 300 mK (that is 1/3 of a degree above absolute zero). The bungee chords are used to dampen vibrations.

Selected Publications

Scanning-probe spectroscopy of semiconductor donor molecules, I. Kuljanishvili, C. Kayis, J. F. Harrison, C. Piermarocchi, T. A. Kaplan, S. H. Tessmer, L.N. Pfeiffer, K.W. West, Nature Physics 4, 227, 2008.

Local Atomic Structure and Discommensurations in the Charge Density Wave of CeTe3, H. J. Kim, C. D. Malliakas, A. Tomic, S. H. Tessmer, M. G. Kanatzidis, S. J. L. Billinge, Phys. Rev. Lett. 96, 226401, 2006.

Subsurface Charge Accumulation Imaging of a Quantum Hall Liquid, S. H. Tessmer, P. I. Glicofridis, R. C. Ashoori, L. S. Levitov, and M. R. Melloch, Nature 392, 51-54 (1998); Nature 395, 724, 1998.

Probing the Superconducting Proximity Effect in NbSe2 by Scanning Tunneling Microscopy, S. H. Tessmer, M. B. Tarlie, D. J. Van Harlingen, D. L. Maslov, and P. M. Goldbart, Phys. Rev. Lett. 77, 924, 1996.