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Showing 1 to 9 of 9 for “"cuprate-superconductor"”.
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Scanning Tunneling Microscopy of the Cuprate Superconductor BSCCO
Submitted by Meng Tao (mengtao2@illinois.edu) on 2012-10-25T19:16:41Z No. of bitstreams: 1 Misra_Shashank.pdf: 6764572 bytes, checksum: 29d6fbdaec0a747259a1662befe29a65 (MD5)
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Conductivity and Interferometry Experiments on YBCO/lead Ramp-Edge Josephson Junctions
… in arbitrary directions of the high-temperature cuprate superconductor YBa 2Cu3O7-y (YBCO) using YBCO/Pb ramp-edge Josephson junctions with lithographically defined corner and straight-edge geometries. Measurements of the critical current versus applied field, I c(H), and the an dynamic …
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STM studies of the nanoscale electronic landscape of the cuprates
… tunneling microscopy (STM) studies of the high-T superconductors have led to a number of important discoveries. In particular, STM has revealed spatial patterns in electronic density due to phenomena such as checkerboard order and quasiparticle interference. This thesis presents two studies of …
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Semiclassical approaches to Quantal Andreev Billiards and Other Topics in Inhomogeneous Superconductivity
… normal-state regions, surrounded by superconductor. A theoretical framework for the investigation of the short-wave quantal properties of quasiparticles in Andreev billiards is developed. Among the central results are two semiclassical trace formulas for the density of states. The …
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Phonon Behaviour at Advanced Material Interfaces using Electron Energy Loss Spectroscopy
… interfacial phonons between high-temperature cuprate superconductor thin films and dielectric substrates, and between nitride semiconductor thin films. The results show the interplay between surface, bulk, and interface phonons in cuprate superconductors and reveal how these contributions …
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Big data, bigger magnets, and tiny high-temperature superconducting cuprates
… magnetic field studies of the high-temperature cuprate superconductor YBa<sub>2</sub>Cu<sub>3</sub>O<sub>y</sub> (YBCO) and associated data processing. YBCO is of much interest due to its high critical temperature (>90 K) and complex phase diagram containing many exotic phases. This work makes …
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Femtosecond spectroscopy of coherent phenomena in quantum materials : a dissertation
… the fluctuating charge density wave order in the cuprate superconductor La₂-xSrxCuO₄; (2) Decay dynamics of valley polarized excitons in the monolayer transition metal dichalcogenide MoSe₂; and (3) a confinement-deconfinement transition of single-particle excitations in the spin-orbit assisted …
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Graphene, layered materials and hybrid structures for advanced photodetectors
… is induced in graphene by proximity with a cuprate superconductor. I used gating to turn semiconducting, few-layer MoS$_2$ into a superconductor, which allowed us to unveil the presence of a multi-valley transport in the superconducting state. Electrical properties of the layered …
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On the competition of superconductivity, antiferromagnetism and charge order in the high-Tc compounds
Diese Arbeit läßt sich in zwei grobe Abschnitte gliedern. Der erste Teil umfaßt die Kapitel 1-3, in denen drei verschiedene Konzepte beschrieben werden, die zum Verständis stark korrelierter Vielteilchen-Systeme dienen. Dies sind zunächst einmal die SO(5)-Theorie in Kapitel 3, die den allgemeinen …