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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 ...
  • Zwolak, Justyna P.; Chruściński, Dariusz (American Physical Society, 2014-05-12)
    We provide a recurrent construction of entanglement witnesses for a bipartite systems living in a Hilbert space corresponding to 2N qubits (N qubits in each subsystem). Our construction provides a method of generalizati ...
  • 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 ...
  • Vidal, Julien; Lany, Stephan; Francis, Jason; Kokenyesi, Robert; Tate, Janet (American Institute of Physics Publishing, 2014-03-19)
    Emergence of a terawatt scalable photovoltaic (PV) thin film technology is currently impeded by the limited supply of relatively rare elements like In or Te, which has spurred active research in recent years on earth-a ...
  • 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 ...

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