Stephen W. Teitsworth | Scholars@Duke

Stephen W. Teitsworth
Associate Professor of Physics

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.

Current Appointments & Affiliations

Associate Professor of Physics, Physics, Trinity College of Arts & Sciences 1995
Director of Graduate Studies in the Department of Physics, Physics, Trinity College of Arts & Sciences 2016

Contact Information

089 Physics Bldg, Durham, NC 27708
Box 90305, Durham, NC 27708-0305
teitso@phy.duke.edu (919) 660-2560

Background
Education, Training, & Certifications
- Ph.D., Harvard University 1986
Duke Appointment History
- Associate Chair of Teaching in the Department of Physics, Physics, Trinity College of Arts & Sciences 2009 - 2012
- Associate Professor of Electrical and Computer Engineering, Electrical and Computer Engineering, Pratt School of Engineering 2009 - 2012
- Assistant Professor, Electrical and Computer Engineering, Pratt School of Engineering 1992 - 1996
- Assistant Professor, Physics, Trinity College of Arts & Sciences 1988 - 1995
Recognition
Awards & Honors
- Traditional Fulbright Scholarship. Council for International Exchange of Scholars. 1999
Expertise
Global Scholarship
- Teaching
  - China (Country)
Research
Selected Grants
- Switching Dynamics of Electric Field Domains in Semiconductor Superlattices awarded by National Science Foundation 2008 - 2012
- DHB: Niches and Networks: Studying the Coevolution of Voluntary Groups and Social Networks awarded by National Science Foundation 2005 - 2007
- Development of Novel Photonic Nanostructures for Measurement in the Duke Femtosecond Terahertz Diagnostic Laboratory awarded by Lord Foundation of North Carolina 2002 - 2005
- Duke Terahertz Femtosecond Diagnostic Laboratory awarded by Lord Foundation of North Carolina 1999 - 2002
- Acquisition of a Variable Temperature Four-Circle X-Ray Diffraction System awarded by National Science Foundation 1999 - 2001
- Optoelectronics Laboratory Equipment Enhancement awarded by Lord Foundation of North Carolina 1998 - 1999
- (94-0188) Electron-localized Phonon Interactions in GaAs/AlxGal-xAs Quantum Well Structures awarded by National Science Foundation 1992 - 1996
- (92-0416) Electron-Localized Phonon Interactions in GaAs/AlxGa,-xAs Quantum Well Structures awarded by National Science Foundation 1992 - 1995
- (93-0918) Electron-Localized Phonon Interactions in GaAs/AlxGa- xAs Quantum Well awarded by National Science Foundation 1992 - 1995
Publications & Artistic Works
Selected Publications
- Conference Papers
  - Neu, JC, Ghanta, A, and Teitsworth, SW. "The Geometry of most probable trajectories in noise-driven dynamical systems." January 1, 2018. Full Text
- Journal Articles
  - Ghanta, A, Neu, JC, and Teitsworth, S. "Fluctuation loops in noise-driven linear dynamical systems." Physical Review E 95, no. 3 (March 2017). Full Text
  - Dannenberg, PH, Neu, JC, and Teitsworth, SW. "Steering most probable escape paths by varying relative noise intensities." Physical review letters 113, no. 2 (July 7, 2014): 020601-. Full Text
  - Bomze, Y, Hey, R, Grahn, HT, and Teitsworth, SW. "Noise-induced current switching in semiconductor superlattices: observation of nonexponential kinetics in a high-dimensional system." Phys Rev Lett 109, no. 2 (July 13, 2012): 026801-. Full Text Link to Item
  - Bomze, Y, Hey, R, Grahn, HT, and Teitsworth, SW. "Noise-Induced Current Switching in Semiconductor Superlattices: Observation of Nonexponential Kinetics in a High-Dimensional System." Physical Review Letters 109, no. 026801 (2012): 4-. (Academic Article)
  - Bonilla, LL, and Teitsworth, SW. "Nonlinear Wave Methods for Charge Transport." Nonlinear Wave Methods for Charge Transport (September 20, 2010). Full Text
  - Bonilla, LL, and Teitsworth, SW. "Nonlinear Wave Methods for Charge Transport." Nonlinear Wave Methods for Charge Transport (2010). Full Text
  - Heinrich, M, Dahms, T, Flunkert, V, Teitsworth, SW, and Schöll, E. "Symmetry-breaking transitions in networks of nonlinear circuit elements." New Journal of Physics 12 (2010). Full Text
  - Xu, H, and Teitsworth, SW. "On the possibility of a shunt-stabilized superlattice terahertz emitter." Applied Physics Letters 96, no. 2 (2010). Full Text Open Access Copy
  - Xu, H, and Teitsworth, SW. "On the possibility of a shunt-stabilized superlattice THz emitter." Applied Physics Letters 96, no. 022101 (2010): 3 pages-. (Academic Article)
  - Xu, H, and Teitsworth, SW. "Emergence of current branches in a series array of negative differential resistance circuit elements." Journal of Applied Physics 108, no. 4 (2010). Full Text Open Access Copy
  - 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, no. 245318 (2009): 14-. (Academic Article)
  - 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, no. 24 (2009). Full Text
  - 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, no. 23 (2007). Full Text
  - Xu, H, and Teitsworth, SW. "Dependence of electric field domain relocation dynamics on contact conductivity in semiconductor superlattices." Physical Review B 76, no. 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, no. 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, no. 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, no. 2 (2006). Full Text
  - 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, no. 3 (2006). Full Text
  - Rogozia, M, Grahn, HT, Teitsworth, SW, and Ploog, KH. "Time distribution of the domain-boundary relocation in superlattices." Physica B: Condensed Matter 314, no. 1-4 (2002): 427-430. Full Text
  - Rogozia, M, Teitsworth, SW, Grahn, HT, and Ploog, KH. "Relocation dynamics of domain boundaries in semiconductor superlattices." Physical Review B 65, no. 205303 (2002): 1-7. (Academic Article)
  - 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, no. 20 (2002): 2053031-2053037.
  - 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, no. 5 II (2001): 562161-562167.
  - 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, no. 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, no. 4 (2001): 413081-413084.
  - 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, no. 1 (January 2000): 39-51. Full Text Link to Item
  - 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, no. 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, no. 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, no. 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/Al_xGa_1-xAs asymmetric double barrier structures." Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures 15, no. 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, no. 3 (January 15, 1996): 1327-1335. Link to Item
  - Banoo, K. "Phonon scattering in novel superlattice-asymmetric double barrier resonant tunneling structure." Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures 14, no. 4 (1996): 2725-2730.
  - de la Cruz RM, , Teitsworth, SW, and Stroscio, MA. "Interface phonons in spherical GaAs/AlxGa1-xAs quantum dots." Phys Rev B Condens Matter 52, no. 3 (July 15, 1995): 1489-1492. Link to Item
  - Turley, PJ, Wallis, CR, and Teitsworth, SW. "Selection rule for localized phonon emission in GaAs/AlAs double-barrier structures." Journal of Applied Physics 78, no. 10 (1995): 6104-6107. Full Text
  - Turley, PJ, and Teitsworth, SW. "Phonon-assisted tunneling from a two-dimensional emitter state." Phys Rev B Condens Matter 50, no. 12 (September 15, 1994): 8423-8432. Link to Item
  - BONILLA, LL, CANTALAPIEDRA, IR, BERGMANN, MJ, and TEITSWORTH, SW. "ONSET OF CURRENT OSCILLATIONS IN EXTRINSIC SEMICONDUCTORS UNDER DC VOLTAGE BIAS." SEMICONDUCTOR SCIENCE AND TECHNOLOGY 9, no. 5 (May 1994): 599-602. Full Text Link to Item
  - TEITSWORTH, SW, TURLEY, PJ, WALLIS, CR, LI, W, and BHATTACHARYA, PK. "MAGNETOTUNNELING MEASUREMENTS OF LOCALIZED OPTICAL PHONONS IN GAAS/ALAS DOUBLE-BARRIER STRUCTURES." SEMICONDUCTOR SCIENCE AND TECHNOLOGY 9, no. 5 (May 1994): 508-511. Full Text Link to Item
  - Bhattacharya, PK, Li, W, Wallis, CR, Turley, PJ, and Teitsworth, SW. "Magnetotunnelling measurements of localized optical phonons in GaAs/AlAs double-barrier structures." Semiconductor Science and Technology 9, no. 5 SUPPL (1994): 508-511.
  - Bonilla, LL, Bergmann, MJ, Cantalapiedra, IR, and Teitsworth, SW. "Onset of current oscillations in extrinsic semiconductors under DC voltage bias." Semiconductor Science and Technology 9, no. 5 SUPPL (1994): 599-602.
  - Wallis, CR, and Teitsworth, SW. "Hopf bifurcations and hysteresis in resonant tunneling diode circuits." Journal of Applied Physics 76, no. 7 (1994): 4443-4445. Full Text
  - Cantalapiedra, IR, Bonilla, LL, Bergmann, MJ, and Teitsworth, SW. "Solitary-wave dynamics in extrinsic semiconductors under dc voltage bias." Phys Rev B Condens Matter 48, no. 16 (October 15, 1993): 12278-12281. Link to Item
  - 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, no. 19 (May 15, 1993): 12640-12648. Link to Item
  - Cruz, RMD, Teitsworth, SW, and Stroscio, MA. "Bottleneck effects due to confined phonons in quantum dots." Superlattices and Microstructures 13, no. 4 (1993): 481--. Full Text
  - Kim, KW, Bhatt, AR, Stroscio, MA, Turley, PJ, and Teitsworth, SW. "Effects of interface phonon scattering in multiheterointerface structures." Journal of Applied Physics 72, no. 6 (1992): 2282-2287. Full Text
  - 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, no. 6 (1992): 2356-2366. Full Text
  - Turley, PJ, and Teitsworth, SW. "Effects of localized phonon modes on magnetotunneling spectra in double-barrier structures." Phys Rev B Condens Matter 44, no. 23 (December 15, 1991): 12959-12963. Link to Item
  - Turley, PJ, and Teitsworth, SW. "Phonon-assisted tunneling due to localized modes in double-barrier structures." Phys Rev B Condens Matter 44, no. 15 (October 15, 1991): 8181-8184. Link to Item
  - 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, no. 7 (August 15, 1991): 3199-3210. Link to Item
  - Bonilla, LL, and Teitsworth, SW. "Theory of periodic and solitary space charge waves in extrinsic semiconductors." Physica D: Nonlinear Phenomena 50, no. 3 (1991): 545-559.
  - Teitsworth, SW. "Physics of space charge instabilities and temporal chaos in extrinsic photoconductors." Applied Physics A: Solids and Surfaces 48, no. 2 (1989): 127-136.
  - Westervelt, RM, Gwinn, EG, and Teitsworth, SW. "Chaotic dynamics in Ge photoconductors." Nuclear Physics B (Proceedings Supplements) 2, no. C (1987): 37-48.
  - Teitsworth, SW, and Westervelt, RM. "Subharmonic and chaotic response of periodically driven extrinsic Ge photoconductors." Phys Rev Lett 56, no. 5 (February 3, 1986): 516-519. Full Text Link to Item
  - TEITSWORTH, SW, LYNN, BA, and WESTERVELT, RM. "CHAOTIC DYNAMICS IN A SIMPLE-MODEL OF EXTRINSIC PHOTOCONDUCTORS." PHYSICA SCRIPTA T14 (1986): 71-75. Full Text Link to Item
  - Teitsworth, SW, and Westervelt, RM. "Nonlinear current-voltage characteristics and spontaneous current oscillations in p-Ge." Physica D: Nonlinear Phenomena 23, no. 1-3 (1986): 181-186.
  - WESTERVELT, RM, TEITSWORTH, SW, and GWINN, EG. "CHAOTIC DYNAMICS IN GE PHOTOCONDUCTORS." PHYSICA SCRIPTA T14 (1986): 65-70. Full Text Link to Item
  - Westervelt, RM, and Teitsworth, SW. "Nonlinear dynamics and chaos in extrinsic photoconductors." Physica D: Nonlinear Phenomena 23, no. 1-3 (1986): 187-194.
  - Westervelt, RM, and Teitsworth, SW. "Nonlinear transient response of extrinsic Ge far-infrared photoconductors." Journal of Applied Physics 57, no. 12 (1985): 5457-5469. Full Text
  - Teitsworth, SW, and Westervelt, RM. "Chaos and broadband noise in extrinsic photoconductors." Physical Review Letters 53, no. 27 (1984): 2587-2590. Full Text
  - Teitsworth, SW, Westervelt, RM, and Haller, EE. "Nonlinear oscillations and chaos in electrical breakdown in Ge." Physical Review Letters 51, no. 9 (1983): 825-828. Full Text
  - Cantalapiedra, IR, Bergmann, MJ, Bonilla, LL, and Teitsworth, SW. "Chaotic motion of space charge wavefronts in semiconductors under time-independent voltage bias." Full Text Link to Item
  - Xu, H, and Teitsworth, SW. "Emergence of current branches in a series array of negative differential resistance circuit elements." Full Text Link to Item
Teaching & Mentoring
Recent Courses
Scholarly, Clinical, & Service Activities
Presentations & Appearances
Outreach & Engaged Scholarship
- Chair. American Physical Society, Committee on Meetings. December 18, 2008 - July 1, 2010 2008 - 2010
Service to the Profession

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Education, Training, & Certifications

Duke Appointment History

Awards & Honors

Global Scholarship

Teaching

Selected Grants

Selected Publications

Conference Papers

Journal Articles

Recent Courses

Presentations & Appearances

Outreach & Engaged Scholarship

Service to the Profession