Title page for ETD etd-05212003-112020


Type of Document Master's Thesis
Author Zwolak, Michael Philip
URN etd-05212003-112020
Title DNA Electronics
Degree Master of Science
Department Physics
Advisory Committee
Advisor Name Title
Di Ventra, Massimiliano Committee Chair
Blecher, Marvin Committee Member
Tauber, Uwe C. Committee Member
Keywords
  • Electronics
  • Charge Transport
  • Spin-dependent Transport
  • DNA
Date of Defense 2003-05-07
Availability unrestricted
Abstract
DNA is a potential component in molecular electronics. To explore this end, there has been an incredible amount of research on how well DNA conducts and by what mechanism. There has also been a tremendous amount of research to find new uses for it in nanoscale electronics. DNA's self-assembly and recognition properties have found a unique place in this area. We predict, using a tight-binding model, that spin-dependent transport can be observed in short DNA molecules sandwiched between ferromagnetic contacts. In particular, we show that a DNA spin-valve can be realized with magnetoresistance values of as much as 26\% for Ni and 16\% for Fe contacts. Spin-dependent transport can broaden the possible applications of DNA as a component in molecular electronics and shed new light into the transport properties of this important biological molecule.
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