# 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.

Turley, PJ, Wallis, CR, Teitsworth, SW, Li, W, and Bhattacharya, PK. "Tunneling measurements of symmetric-interface phonons in GaAs/AlAs double-barrier structures." *Phys Rev B Condens Matter* 47.19 (May 15, 1993): 12640-12648.

Dela Cruz, RM, Teitsworth, SW, and Stroscio, MA. "Bottleneck effects due to confined phonons in quantum dots." *Superlattices and Microstructures* 13.4 (January 1, 1993): 481-486.
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Kim, KW, Bhatt, AR, Stroscio, MA, Turley, PJ, and Teitsworth, SW. "Effects of interface phonon scattering in multiheterointerface structures." *Journal of Applied Physics* 72.6 (December 1, 1992): 2282-2287.
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Turley, PJ, and Teitsworth, SW. "Theory of localized phonon modes and their effects on electron tunneling in double-barrier structures." *Journal of Applied Physics* 72.6 (December 1, 1992): 2356-2366.
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Turley, PJ, and Teitsworth, SW. "Effects of localized phonon modes on magnetotunneling spectra in double-barrier structures." *Phys Rev B Condens Matter* 44.23 (December 15, 1991): 12959-12963.

Turley, PJ, and Teitsworth, SW. "Phonon-assisted tunneling due to localized modes in double-barrier structures." *Phys Rev B Condens Matter* 44.15 (October 15, 1991): 8181-8184.

Turley, PJ, and Teitsworth, SW. "Electronic wave functions and electron-confined-phonon matrix elements in GaAs/AlxGa1-xAs double-barrier resonant-tunneling structures." *Phys Rev B Condens Matter* 44.7 (August 15, 1991): 3199-3210.

Bonilla, LL, and Teitsworth, SW. "Theory of periodic and solitary space charge waves in extrinsic semiconductors." *Physica D: Nonlinear Phenomena* 50.3 (January 1, 1991): 545-559.
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Teitsworth, SW. "The physics of space charge instabilities and temporal chaos in extrinsic photoconductors." *Applied Physics a Solids and Surfaces* 48.2 (February 1989): 127-136.
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Westervelt, RM, Gwinn, EG, and Teitsworth, SW. "Chaotic dynamics in Ge photoconductors." *Nuclear Physics B (Proceedings Supplements)* 2.C (January 1, 1987): 37-48.
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