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Browse College of Engineering by Contributor "Cooper, S. Lance"
Now showing items 1-20 of 57
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(2017-11-29)Topologically nontrivial systems are electronic materials that have protected conducting states on their edge or surface. These widely studied materials are of great interest due to their exotic physical properties and ...
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(2013-05-24)Topological insulators are electronic materials that have a bulk band gap like an ordinary insulator but have protected conducting states on their edge or surface. The exotic electronic properties of topological materials ...
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(2017-12-01)This dissertation examines the electronic properties of topological materials in their thin film forms, including a prototypical topological insulator (TI), Bi2Te3, and a newly discovered topological Dirac semimetal (TDS), ...
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(2006-11-28)The discovery of ferromagnetism in Mn doped InAs and GaAs has ignited interest in the development of semiconductor technologies based on the electron spin. A major hurdle remaining for realistic applications of ferromagnetic ...
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(2016-06-30)In both crystalline and amorphous solids, plastic deformation consists of intermittent jumps called avalanches, whose sizes are power-law-distributed over a scaling regime. In this thesis, we study the statistics of a ...
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(2009)The character of electronic states near the Mott-Anderson metal-insulator transition in the ferromagnetic semiconductor Ga1-xMn xAs is studied by cross sectional scanning tunneling microscopy. 200nm thick samples grown by ...
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Character of the electronic states near the metal-insulator transition in Gallium Manganese Arsenide (2010-01-06)The character of electronic states near the Mott-Anderson metal-insulator transition in the ferromagnetic semiconductor Ga1-xMnxAs is studied by cross sectional scanning tunneling microscopy. 200nm thick samples grown by ...
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(2015-01-21)The Calogero Sutherland model is system of particle moving on a line and interacting with long-range forces. In this thesis we consider the classical case where the particles may or may not possess a spin degree of freedom. ...
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(2013-05-24)We study a topological classification of insulators and superconductors in the presence of non-spatial discrete symmetries in the Altland-Zirnbauer classification and spatial symmetries in any spatial dimension. We provide ...
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Collective excitations in layered materials with momentum-resolved electron energy loss spectroscopy (2015-09-08)Strong Coulomb interactions are either suspected or known to play a prominent role in material classes such as high temperature superconductors, charge density waves, and Mott insulators among many others. These interactions ...
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(2014-05-30)We study the optical properties of luminescent silicon nanoparticles in the presence of magnetic ions of iron or erbium in solution and electric biasing. Upon the introduction of the ions under zero biasing, the ...
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(2001)We have used two optical spectroscopy techniques, Raman scattering spectroscopy and spectroscopic ellipsometry, to study complex phase transition behavior exhibited by the doped rare-earth manganese oxides, R1_xDxMn03 ...
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(2010-05-14)We report evidence for a complex low-temperature superconducting phase in UPt3 that breaks time-reversal symmetry and exhibits a phase shift of Pi in the superconducting order parameter between the a- and b-axes. We also ...
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(2013-05-24)As is well known, the computational effort in quantum mechanics grows exponentially with system size. Thus a typical computation of an interesting many-body problem quickly becomes prohibitive. In this work, we try to ...
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(2014-05-30)The Fe-based superconductors (Fe-SCs) have reinvigorated the community of high-Tc researchers worldwide. Like copper-oxide superconductors (Cu-SCs), they are layered compounds in proximity to an antiferromagnetic (AFM) ...
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(2013-11-25)Photonic crystal (PC) surfaces have been demonstrated to be a compelling platform for improving the sensitivity of surface-based fluorescent assays used in disease diagnostics and life science research. PCs can be engineered ...
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(2009)It has been more than two decades since the copper-oxide high temperature superconductors were discovered. However, building a satisfactory theoretical framework to study these compounds still remains one of the major ...
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(2014-05-30)In this dissertation, inelastic light (Raman) scattering techniques are used to probe the novel phases and properties of the orbital ordering material KCuF3 and the single molecule magnet Mn12-acetate as functions of ...
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(2016-07-12)The many-body correlation between electrons is the origin of many fascinating phenomena in condensed matter systems, such as high temperature superconductivity, superfluidity, fractional quantum Hall effect, and Mott ...
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Now showing items 1-20 of 57