Project A1:
Simple and complex quantum dot systems as model systems for investigating and controlling coherence and correlation effects (2005-2013)
Summary
Quantum dot systems - in simple and complex arrangements - will be realized using high resolution semiconductor processing technology. Being designed to purpose, they will be used here in experiments as model systems for investigating, demonstrating and controlling coherence and correlation effects as they manifest themselves in electrical transport through mesoscopic quantum dots, molecules and atoms. The main focus is tailoring dynamic cooperative quantum states due the (pseudo-)spin degrees of freedom in these quantum dot systems described within the framework of Kondo physics.
Project leaders
Prof. Dr. Klaus von Klitzing, Abteilung Prof. v. Klitzing, MPI für Festkörperforschung
Prof. Dr. Jürgen Weis, Abt. v. Klitzing, MPI für Festkörperforschung, Stuttgart
Prof. Dr. David Wharam, Institut für Angewandte Physik, Universität Tübingen
Refs & Publications
J. Weis and K. von Klitzing"Metrology and microscopic picture of the integer quantum Hall effect"
Philosophical Transactions of the Royal Society A 369, 3954-3974 (2011); doi: 10.1098/rsta.2011.0198
F. Dahlem, E. Ahlswede, J. Weis, and K. von Klitzing
"Cryogenic scanning force microscopy of quantum Hall samples: Adiabatic transport originating in anisotropic depletion at contact interfaces"
Phys. Rev. B 82, 121305 (2010); doi: 10.1103/PhysRevB.82.121305
M. Fleischer, F. Panteleit, D.J. Schefzyk, D.A. Ritchie, M. Pepper, and D.A. Wharam
"A tunable three-lead double quantum dot with a resorcinarene spacer"
Semicond. Sci. Technol. 24, 025010 (2009); doi: 10.1088/0268-1242/24/2/025010
A. Hübel, K. Held, J. Weis, and K. v. Klitzing
"Correlated Electron Tunneling through Two Separate Quantum Dot Systems with Strong Capacitive Interdot Coupling"
Phys. Rev. Lett. 101, 186804 (2008); doi: 10.1103/PhysRevLett.101.186804
A. Hübel, J. Weis, and K. v. Klitzing
"Precise experimental characterization of a double quantum dot system with strong capacitve interdot coupling"
Physica E 40, 1573 (2008)
A. Hübel, J. Weis, W. Dietsche, and K. v. Klitzing
"Two laterally arranged quantum dot systems with strong capacitive interdot coupling"
Appl. Phys. Lett. 91, 102101 (2007); doi: 10.1063/1.2778542
M. Fleischer, F. Panteleit, and D. A. Wharam
"Fabrication of nanostructures using a C-methylcalix[4]resorcinarene dielectric spacer"
J. Vac. Sci. Technol. B 25 (3), 877-880 (2007); doi: 10.1116/1.2738483
J. Weis
"Single-Electron Devices"
Lect. Notes Phys. 657, 87 (2005)