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Browsing Faculty Research Publications (Physics) by Title

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Browsing Faculty Research Publications (Physics) by Title

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  • Podolskiy, Viktor A.; Kuhta, Nicholas A.; Milton, Graeme W. (American Institute of Physics, 2005-11-30)
    We analyze the performance of a planar lens based on realistic negative index material in a generalized geometry. We demonstrate that the conventional superlens design (where the lens is centered between the object and ...
  • Day, Jonathan; Platt, Andrew D.; Ostroverkhova, Oksana; Subramanian, Sankar; Anthony, John E. (American Institute of Physics, 2009-01-09)
    We report on the effect of various guest molecules added to a functionalized anthradithiophene (ADT) host on photoexcited charge carrier dynamics in solution-deposited thin films, from ~100 ps to >100 μs after photoexc ...
  • Tate, J.; Ju, H. L.; Moon, J. C.; Zakutayev, A.; Richard, A. P.; Russell, J.; McIntyre, D. H. (The American Physical Society, 2009-10-15)
    We report measurements of the structural, optical, transport, and magnetic properties of single crystals of the anisotropic p-type transparent semiconductor CuAlO₂. The indirect and direct band gaps are 2.97 and 3.47 eV ...
  • Nagarajan, R.; Draeseke, A. D.; Sleight, A. W.; Tate, J. (American Institute of Physics, 2001-06-15)
    CuCr₁₋ₓMgₓO₂, a wide band gap semiconductor with the delafossite structure, has been synthesized in bulk and thin-film form. Bulk undoped CuCrO₂ is almost black and has moderate conductivity with p-type carriers. Upon ...
  • Yanagi, Hiroshi; Tate, Janet; Park, Sangmoon; Park, Cheol-Hee; Keszler, Douglas A. (American Institute of Physics, 2003-04-28)
    BaCuQF (Q=S,Se) materials, candidate transparent p-type conductors, were prepared by solid-state reaction, and their bulk electrical and optical properties were evaluated. The room-temperature Seebeck coefficient and e ...
  • Kustusch, Mary Bridget; Roundy, David; Dray, Tevian; Manogue, Corinne A. (American Physical Society, 2014-01-10)
    Several studies in recent years have demonstrated that upper-division students struggle with the mathematics of thermodynamics. This paper presents a task analysis based on several expert attempts to solve a challengin ...
  • Blume-Kohout, Robin; Croke, Sarah; Zwolak, Michael (Nature Publishing Group, 2013-05-14)
    Measurement of a quantum system - the process by which an observer gathers information about it - provides a link between the quantum and classical worlds. The nature of this process is the central issue for attempts to ...
  • Rams, Marek M.; Zwolak, Michael; Damski, Bogdan (Nature Publishing Group, 2012-09-13)
    We study an Ising chain undergoing a quantum phase transition in a quantum magnetic field. Such a field can be emulated by coupling the chain to a central spin initially in a superposition state. We show that - by adiaba ...
  • Dimitrova, V.; Draeseke, A.; Tate, J.; Yokoyama, T.; Clark, B. L.; Keszler, Douglas A. (American Institute of Physics, 1999-10-18)
    We demonstrate color shifting from the yellow to the red in the electroluminescence from (ZnGa)S:Mn films. We observe threshold voltages down to about 35 V, extremely low for such devices. We discuss the materials char ...
  • Riedel, C. Jess; Zurek, Wojciech H.; Zwolak, Michael (IOP Publishing Ltd and Deutsche Physikalische Gesellschaft, 2012-08-10)
    A state selected at random from the Hilbert space of a many-body system is overwhelmingly likely to exhibit highly non-classical correlations. For these typical states, half of the environment must be measured by an obse ...
  • Sallis, S.; Piper, L. F. J.; Francis, J.; Tate, J.; Hiramatsu, H.; Kamiya, T.; Hosono, H. (American Physical Society, 2012-02)
    The electronic structure of the oxychalcogenides LaCuOSe and BiCuOSe has been studied using O K-edge x-ray emission spectroscopy, x-ray absorption spectroscopy, and density functional theory, in order to examine the effe ...
  • Roberts, J. M.; Brown, Brandon; Tate, J.; Xi, X. X.; Mao, S. N. (The American Physical Society, 1995-06-01)
    We have investigated a second-order phase transition of the vortex lattice in thin-film Nd₁.₈₅Ce₀.₁₅CuO[subscript 4-y] from 1 mT to 1 T applied magnetic fields. The dc resistivity-current density data for each field exhi ...
  • Roberts, J. M.; Brown, Brandon; Hermann, B. A.; Tate, J. (The American Physical Society, 1994-03-01)
    See article for Abstract.
  • Escapa, Ignacio H.; Rothwell, Gar W.; Stockey, Ruth A.; Cuneo, N. Ruben (Botanical Society of America, Inc., 2012-06-01)
    Premise of the study: Seed cone morphology and anatomy reflect some of the most important changes in the phylogeny and evolutionary biology of conifers. Reexamination of the enigmatic Jurassic seed cone Pararaucaria pata ...
  • Vielma, J. M.; Schneider, G. (American Institute of Physics Publishing, 2013-11-07)
    A shell model for ferroelectric perovskites fitted to results of first-principles density functional theory (DFT) calculations is strongly affected by approximations made in the exchange-correlation functional within D ...
  • Michalakis, Spyridon; Zwolak, Justyna P. (Springer, 2013-09-01)
    We prove stability of the spectral gap for gapped, frustration-free Hamiltonians under general, quasi-local perturbations. We present a necessary and sufficient condition for stability, which we call Local Topological Qu ...
  • Kykyneshi, R.; Nielsen, B. C.; Tate, J.; Li, J.; Sleight, A. W. (American Institute of Physics, 2004-12-01)
    Transport and structural properties of Mg-doped and O-intercalated sintered powders and polycrystalline films of CuSc₁₋ₓMgₓO[subscript 2+y] are reported. Substitution of Mg for Sc systematically increases the p-type co ...
  • Purushothaman, Balaji; Parkin, Sean R.; Kendrick, Mark J.; David, Daniel; Ward, Jeremy W.; Yu, Liyang; Stingelin, Natalie; Jurchescu, Oana D.; Ostroverkhova, Oksana; Anthony, John E. (Royal Society of Chemistry, 2012-06-26)
    Acenes larger than pentacene are predicted to possess enticing electronic properties, but are insoluble and prone to rapid decomposition. Utilizing a combination of functionalization strategies, we present stable, soluti ...
  • Platt, A. D.; Kendrick, M. J.; Loth, M.; Anthony, J. E.; Ostroverkhova, O. (American Physical Society, 2011-12)
    We report on physical mechanisms behind the temperature-dependent optical absorption, photoluminescence (PL), and photoconductivity in spin-coated films of a functionalized anthradithiophene (ADT) derivative, ADT-triethy ...
  • Tomaino, J. L.; Jameson, A. D.; Lee, Yun-Shik; Khitrova, G.; Gibbs, H. M.; Klettke, A. C.; Kira, M.; Koch, S.W. (American Physical Society, 2012-06-29)
    Interactions of few-cycle terahertz pulses with the induced optical polarization in a quantum-well microcavity reveal that the lower and higher exciton-polariton modes together with the optically forbidden 2p-exciton sta ...

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