# Stephen W. Teitsworth

## Associate Professor of Physics

### Overview

Prof. Stephen W. Teitsworth's research centers on experimental, computational, and theoretical studies of deterministic and stochastic nonlinear electronic transport in nanoscale systems. Three particular areas of current interest are: 1) stochastic nonlinear electronic transport phenomena in semiconductor superlattices and tunnel diode arrays; 2) complex bifurcations associated with the deterministic dynamics of electronic transport in negative differential resistance systems; and 3) strategies for stabilizing negative differential resistance systems against the formation of space-charge waves.

Xu, H, Amann, A, Schöll, E, and Teitsworth, SW. "Dynamics of electronic transport in a semiconductor superlattice with a shunting side layer." *Physical Review B - Condensed Matter and Materials Physics* 79.24 (2009).
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Xu, H, Amann, A, Schoell, E, and Teitsworth, SW. "Dynamics of electronic transport in a semiconductor superlattice with a shunting side layer." *Physical Review B* 79.245318 (2009): 14-. (Academic Article)

Xu, H, and Teitsworth, SW. "Dependence of electric field domain relocation dynamics on contact conductivity in semiconductor superlattices." *Physical Review B - Condensed Matter and Materials Physics* 76.23 (2007).
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Xu, H, and Teitsworth, SW. "Dependence of electric field domain relocation dynamics on contact conductivity in semiconductor superlattices." *Physical Review B* 76.235302 (2007): 11 pages-. (Academic Article)

Lu, SL, Schrottke, L, Teitsworth, SW, Hey, R, and Grahn, HT. "Negative differential conductance and bistability in undoped GaAs/AlGaAs quantum-cascade structures." *Journal of Applied Physics* 100.023701 (July 2006): 6 pages-. (Academic Article)

Lu, SL, Schrottke, L, Teitsworth, SW, Hey, R, and Grahn, HT. "Formation of electric-field domains in GaAs/AlGaAs quantum cascade laser structures." *Physical Review B* 73.033311 (January 2006): 4 pages-. (Academic Article)

Lu, SL, Schrottke, L, Teitsworth, SW, Hey, R, and Grahn, HT. "Negative differential conductance and bistability in undoped GaAs/(Al,Ga)As quantum-cascade structures." *Journal of Applied Physics* 100.2 (2006).
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Lu, SL, Schrottke, L, Teitsworth, SW, Hey, R, and Grahn, HT. "Formation of electric-field domains in GaAs Alx Ga1-x As quantum cascade laser structures." *Physical Review B - Condensed Matter and Materials Physics* 73.3 (2006).
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Rogozia, M, Grahn, HT, Teitsworth, SW, and Ploog, KH. "Time distribution of the domain-boundary relocation in superlattices." *Physica B: Condensed Matter* 314.1-4 (2002): 427-430.
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Rogozia, M, Teitsworth, SW, Grahn, HT, and Ploog, KH. "Relocation dynamics of domain boundaries in semiconductor superlattices." *Physical Review B* 65.205303 (2002): 1-7. (Academic Article)