Preparation and Characterization of Quantum Structures

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Department of Solid State Engineering

The course provides an overview of the basic methods of preparation of quantum structures, with the emphasis on their physical principles, experimental implementation, characteristics and areas of application. Prerequisites include knowledge of solid state physics, theory of solids, and surface physics in the extend of master courses at FJFI. The graduate acquires the theoretical knowledge needed to design and prepare new functional quantum structures with the required properties.

Syllabus of lectures:

1.Surface energy (Gibbs definition of surface free energy; Role of surface topology)2.Adsorption at surfaces (Physisorption, chemisorption, interaction potential; Interaction adsorbate-substrate, adsorbate-adsorbate; Surface segregation; Kinetics of adsorption and desorption)3.Coverage and ultra-thin layers (2D surface mesh; Epitaxial / Non-epitaxial growth; Structure matching at interface, tayloring layer properties)4.Surface chemical reactions (Catalytic role of substrate; Interaction of electronic states; Size effects on reactivity)5.Standard experimental methods of thin layer growth (Physical vapor deposition; Chemical vapor deposition; Molecular beam epitaxy; Liquid phase epitaxy; Langmuir-Blodgett technique; Electrolytic deposition)6.Advanced methods (Plasma deposition techniques, plasma enhanced CVD, IJD; Atomic layer deposition; Specifics of graphene and transition metal chalcogenides growth; The Hohenberg-Landau-Mermin-Peierls-Wagner theorem; 2D versus 2D embedded in 3D)7.Nanostructured assemblies (Top down versus bottom up aproach; Superstructures and modulated structures; Lateral patterning, lithographic methods, other nano-masks)8.Band structure of modulated layered assemblies (Semiconductors; Hetero-assemblies metal / dielectrics; Magnetic multilayers)9.Transport properties in low-dimensional structures (Non-classical conductance quantization; Modulated structures; Quantum wires; Quantum tunneling)10.Interferrence effects in nanostructures (Double slit effect, photons, plasmons; Coherence and decoherence ; Quantum entanglement; Aharonov-Bohm effect; Fano effect)11.Thermodynamics of quantum information, consequences for QIT implementations (Information entropy and physical entropy; Landauer’s principle; Boolean logic; Reversible logic operations)12.Implementing quibits and quibit operations (Quibit definition; Quantum ionic crystals; Free oscillations of double quantum dot charge; Rabi oscillations of an excitonic quibit; Quantum dot spin quibits)13.Recent developments, advanced quantum structures.

Syllabus of tutorials:
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Study materials:

Key references:[1] Thomas Ihn: Semiconductor nanostructures. Oxford UP 2010.[2] John N. Lalena, David A. Cleary: Principles of inorganic materials design. Wiley 2010.[3] E. L. Wolf: Graphene. Oxford UP 2014.Recommended references:[4] U.K.Mishra and J. Singh: Semiconductor Device Physics and Design. Springer 2008.[5] Manijeh Razeghi: Fundamentals of Solid State Engineering. Kluwer 2002.

Further information:
No time-table has been prepared for this course
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Data valid to 2024-06-16
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