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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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  • Govyadinov, Alexander A.; Podolskiy, Viktor A.; Noginov, M. (American Institute of Physics, 2007-11-05)
    We derive an approach to determine the causal direction of wavevectors of modes in optical metamaterials, which, in turn, determines signs of refractive index and impedance as a function of real and imaginary parts of ...
  • Zwolak, Michael; Riedel, C. Jess; Zurek, Wojciech H. (American Physical Society, 2014-04-11)
    Amplification was regarded, since the early days of quantum theory, as a mysterious ingredient that endows quantum microstates with macroscopic consequences, key to the “collapse of the wave packet,” and a way to avoid ...
  • Lurie-Gregg, Paho; Schulte, Jeff B.; Roundy, David (American Physical Society, 2014-10-21)
    We introduce an approximation for the pair distribution function of the inhomogeneous hard sphere fluid. Our approximation makes use of our recently published averaged pair distribution function at contact, which has b ...
  • Zakutayev, Andriy; Tate, Janet; Platt, Heather A. S.; Keszler, Douglas A.; Barati, Alireza; Klein, Andreas; Jaegermann, Wolfram (American Institute of Physics, 2010-04-19)
    In situ photoemission spectroscopy experiments are used to characterize the interface between ZnTe and the wide band gap p-type semiconductor BaCuSeF. The contact is characterized by a null valence-band offset, a large c ...
  • Vidal, Julien; Lany, Stephan; d’Avezac, Mayeul; Zunger, Alex; Zakutayev, Andriy; Francis, Jason; Tate, Janet (American Institute of Physics, 2012-01-16)
    SnS is a potential earth-abundant photovoltaic (PV) material. Employing both theory and experiment to assess the PV relevant properties of SnS, we clarify on whether SnS has an indirect or direct band gap and what is the ...
  • Chien, Chih-Chun; Zwolak, Michael; Di Ventra, Massimiliano (American Physical Society, 2012-04-10)
    Using the microcanonical picture of transport-a framework ideally suited to describe the dynamics of closed quantum systems such as ultracold atom experiments-we show that the exact dynamics of noninteracting fermions an ...
  • Johnson, Brian; Kendrick, Mark J.; Ostroverkhova, Oksana (American Institute of Physics, 2013-09-04)
    We present a model that describes nanosecond (ns) time-scale photocurrent dynamics in functionalized anthradithiophene (ADT) films and ADT-based donor-acceptor (D/A) composites. By fitting numerically simulated photocurr ...
  • Hughes, Jessica; Krebs, Eric J.; Roundy, David (American Institute of Physics, 2013-01-14)
    We develop a classical density functional for water which combines the White Bear fundamental-measure theory (FMT) functional for the hard sphere fluid with attractive interactions based on the statistical associating fl ...
  • Zwolak, Michael; Zurek, Wojciech H. (Nature Publishing Group, 2013-05-20)
    The sum of the Holevo quantity (that bounds the capacity of quantum channels to transmit classical information about an observable) and the quantum discord (a measure of the quantumness of correlations of that observable ...
  • Foster, D. H.; Barras, F. L.; Vielma, J. M.; Schneider, G. (American Physical Society, 2013-11-08)
    The p-type semiconductor Cu₃PSe₄ has recently been established to have a direct band gap of 1.4 eV and an optical absorption spectrum similar to GaAs [Foster et al., Appl. Phys. Lett. 99, 181903 (2011)], suggesting a p ...
  • Zakutayev, A.; Tate, J.; Schneider, G. (The American Physical Society, 2010-11-15)
    Native point defects, defect complexes, and oxygen impurities in BaCuChF were studied using density functional theory calculations, self-consistent thermodynamic simulations, and various experimental techniques. Uninte ...
  • Liu, Weimin; Wang, Liang; Han, Fangyuan; Fang, Chong (Optical Society of America, 2013-09-01)
    We achieve a series of distinct broadband third-harmonic generation (THG) signals at the amorphous glass–air interface attributed to third-order and cascaded third-order nonlinear processes. A novel THG laser sideband a ...
  • Ajith, P.; Fotopoulos, N.; Privitera, S.; Neunzert, A.; Mazumder, N.; Weinstein, A. J. (American Physical Society, 2014-04-08)
    We report the construction of a three-dimensional template bank for the search for gravitational waves from inspiralling binaries consisting of spinning compact objects. The parameter space consists of two dimensions d ...
  • Hoffman, R. L.; Wager, J. F.; Jayaraj, M. K.; Tate, J. (American Institute of Physics, 2001-12-01)
    Transparent p – i – n heterojunction diodes are fabricated using heavily doped, p-type CuYO₂ and semi-insulating i-ZnO thin films deposited onto a glass substrate coated with n-type indium tin oxide. Rectification is o ...
  • Zakutayev, Andriy; Tate, Janet; Platt, Heather A. S.; Keszler, Douglas A.; Hein, Corinna; Mayer, Thomas; Klein, Andreas; Jaegermann, Wolfram (American Institute of Physics, 2010-05-15)
    BaCuChF (Ch=S,Se,Te) surfaces and BaCuSeF interfaces with zinc phthalocyanine (ZnPc) were studied by photoelectron spectroscopy. BaCuChF compounds oxidize when exposed to ambient atmosphere. Se capping layers were studie ...
  • Zakutayev, A.; Kykyneshi, R.; Schneider, G.; McIntyre, D. H.; Tate, J. (The American Physical Society, 2010-04-15)
    Double excitonic absorption peaks are observed in textured BaCuSF and BaCuSeF thin films. The excitonic doublet separation increases with increasing fraction of heavy chalcogen in the thin-film solid solutions, in good a ...
  • Paudel, Keshab; Johnson, Brian; Thieme, Mattson; Haley, Michael M.; Payne, Marcia M.; Anthony, John E.; Ostroverkhova, Oksana (American Institute of Physics Publishing, 2014-07-28)
    We examined sub-nanosecond time-scale charge carrier dynamics in crystalline films of a functionalized anthradithiophene (ADT) donor (D) with three different acceptor (A) molecules. A four-fold enhancement in ultrafast ...
  • Karapetrov, Goran; Tate, Janet (The American Physical Society, 1995-08-01)
    We have measured sweep-rate-dependent magnetization hysteresis curves of thin-film Bi₂Sr₂CaCu₂O[subscript 8+δ] using a Hall probe magnetometer in an unconventional geometry. We find a structure in the response well below ...
  • Sim, Sangwan; Park, Jusang; Song, Jeong-Gyu; In, Chihun; Lee, Yun-Shik; Kim, Hyungjun; Choi, Hyunyong (American Physical Society, 2013-08-27)
    We report ultrafast pump-probe spectroscopy examining exciton dynamics in atomically thin MoS2. Spectrally and temporally resolved measurements are performed to investigate the interaction dynamics of two important direc ...
  • Kustusch, Mary Bridget; Roundy, David; Dray, Tevian; Manogue, Corinne (American Institute of Physics, 2013-01)
    Several studies in recent years have demonstrated that upper-division students struggle with partial derivatives and the complicated chain rules ubiquitous in thermodynamics. We asked several experts (primarily faculty ...

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