# 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.

Rogozia, M, Teitsworth, SW, Grahn, HT, and Ploog, KH. "Relocation dynamics of domain boundaries in semiconductor superlattices." *Physical Review B - Condensed Matter and Materials Physics* 65.20 (2002): 2053031-2053037.

Rogozia, M, Teitsworth, SW, Grahn, HT, and Ploog, K. "Statistics of the domain boundary relocation time in semiconductor superlattices." *Physical Review B - Rapid Communications* 64.041308 (2001): 1-4. (Academic Article)

Rogozia, M, Teitsworth, SW, Grahn, HT, and Ploog, KH. "Statistics of the domain-boundary relocation time in semiconductor superlattices." *Physical Review B - Condensed Matter and Materials Physics* 64.4 (2001): 413081-413084.

Cantalapiedra, IR, Bergmann, MJ, Bonilla, LL, and Teitsworth, SW. "Chaotic motion of space charge wave fronts in semiconductors under time-independent voltage bias." *Physical Review E - Statistical, Nonlinear, and Soft Matter Physics* 63.5 II (2001): 562161-562167.

Olafsen, LJ, Daniels-Race, T, Kendall, RE, and Teitsworth, SW. "Photoluminescence of n-i-n GaAs/AlAs single quantum well structures under electric field bias." *SUPERLATTICES AND MICROSTRUCTURES* 27.1 (January 2000): 39-51.
Full Text

Olafsen, LJ, Daniels-Race, T, Kendall, RE, and Teitsworth, SW. "Photoluminescence of n-i-n GaAs/AlAs single quantum well structures under electric field bias." *Superlattices and Microstructures* 27.1 (2000): 7-14.
Full Text

Luo, KJ, Teitsworth, SW, Kostial, H, Grahn, HT, and Ohtani, N. "Controllable bistabilities and bifurcations in a photoexcited GaAs/AlAs superlattice." *Applied Physics Letters* 74.25 (1999): 3845-3847.

Luo, KJ, Grahn, HT, Teitsworth, SW, and Ploog, KH. "Influence of higher harmonics on Poincaré maps derived from current self-oscillations in a semiconductor superlattice." *Physical Review B - Condensed Matter and Materials Physics* 58.19 (1998): 12613-12616.

Blue, LJ, Daniels-Race, T, Kendall, RE, Schmid, CR, and Teitsworth, SW. "Dependence of current-voltage characteristics on Al mole fraction in GaAs/AlxGa1-xAs asymmetric double barrier structures." *Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures* 15.3 (1997): 696-701.

Bergmann, MJ, Teitsworth, SW, Bonilla, LL, and Cantalapiedra, IR. "Solitary-wave conduction in p-type Ge under time-dependent voltage bias." *Phys Rev B Condens Matter* 53.3 (January 15, 1996): 1327-1335.