Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"exciton condensation"”.
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Phase coherence in the regime of bilayer exciton condensation
… can be viewed as a Bose-Einstein condensate of excitons, where electrons from one 2DES couple to vacant states from the other 2DES. The pairing of electrons and holes (i.e., excitons) is mediated by Coulomb interactions. In this thesis this excitonic state was investigated by interlayer …
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Interplay between Correlation and Topology in Two-dimensional Systems
… superconductivity, strange metal behavior, exciton condensation, emergent Kondo lattice physics, quantum Hall ferromagnetism, (fractional) quantum anomalous Hall effect, and formation of anomalous Hall crystals. Typically in many of these systems, there is a nearly flat low-energy band with …
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Formulating design rules to predict 2D materials and heterostructures for next-generation electronics
The Holy Grail of materials science is to understand how atoms in the periodic table get arranged into materials with specific properties. Knowledge of the design rules and material descriptors for a given property will reduce reliance on serendipity in materials design and help us answer questions …
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Collective modes in strongly correlated electron systems measured with momentum-resolved electron energy-loss spectroscopy
… been proposed to contain a Bose condensate of excitons. Using M-EELS, we demonstrate the existence of an exciton condensate in TiSe2. Its experimental signature is a soft electronic collective mode that disperses to zero energy near the charge density wave (CDW) transition temperature TC, …