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AG Scheer
Mesoscopic Systems

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Theoretical and experimental aspects of molecular electronics

Jun.-Prof. Fabian Pauly & Prof. Elke Scheer

This lecture addresses students of Physics, Chemistry, or Molecular Materials Sciences and provides a compact introduction to the rapidly developing field of molecular electronics. It gives an overview on our present understanding of the electrical conduction in single-molecule circuits and a thorough introduction to the experimental techniques and theoretical concepts in an integrated manner. Students may deepen theoretical or experimental aspects by the choice of the exercises. The experimental focus includes a laboratory course that will partially be held at Research Center Dresden Rossendorf, see separate item. The theoretical one involves the solution of exercise sheets and programming tasks.

  1. Introduction
  2. Reminder of solid state physics
  3. The scattering approach
  4. Realization of reduced dimensions
  5. Molecules for molecular electronics
  6. Single-atom and single-molecule contacts
  7. Introduction to equilibrium Green’s functions techniques
  8. Green’s functions and Feynman diagrams
  9. Nonequilibrium Green’s function formalism
  10. Electronic structure: Tight-binding approach, density functional theory, many-body perturbation theory
  11. Coherent transport through atomic and molecular junctions
  12. Carbon-based electronics: Carbon nanotubes and graphene
  13. Coulomb blockade and Kondo physics
  14. Vibrationally-induced inelastic current
  15. Beyond electrical conductance: shot noise, thermopower, heating, thermal transport
  16. Electronic transport measurements
  17. Thin-film deposition techniques
  18. Lithography
  19. Miscellaneous: Atomic switches, Relais Switches, etc.

Helpful: Quantum mechanics, solid state physics
Integrated Course for Master in Physics, Chemistry, and Molecular Materials Sciences

Exercises: Sheets & programming tasks (theory), lab course (experiment)*
10 cr. (4 SWS Lecture + 2 SWS Exercises), Language: English/German

Lecture: Mon 8:15-9:45 Uhr, P602; Tue 8:15-9:45 Uhr, P603
Exercise: Fri 13:30-15:00 Uhr, P1012
*Lab course (Erbe&Scheer): February 17 to 22, 2014 in Dresden

Semester-Vorschau: pdf

Exercises and script

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Talks

Talk1: Felix Rochau, Molecular Beam Epitaxie (8.11.2013)
Talk2: Maximilian Ross, Herstellung von Kohlenstoff Nanoröhren (13.12.2013)
Talk3: Mario Nitsch, Elektronenmikroskopie (13.12.2013)
Talk4: Jannis Oelmann, Tieftemperaturmessungen (31.01.2014)
Talk5: Stephan Schneider, Reaktives Ionenätzen („Reactive Ion Etching“ RIE)  31.01.2014

Tutors

Weber, David (Scheer)
Bülte, Johannes (Belzig)
Holmqvist, Cecilia (Belzig)
Reutlinger, Johannes (Belzig)
Stadler, Pascal (Belzig)
Irmler, Andreas (Pauly)
Wiedmann, Dirk (Pauly)