Now showing items 690-709 of 813

    • Strongly anisotropic roughness in surfaces driven by an oblique particle flux 

      Schmittmann, B.; Pruessner, G.; Janssen, H. K. (American Physical Society, 2006-05)
      Using field theoretic renormalization, an MBE-type growth process with an obliquely incident influx of atoms is examined. The projection of the beam on the substrate plane selects a "parallel" direction, with rotational ...
    • Strongly Bent Double-Stranded DNA: Reconciling Theory and Experiment 

      Drozdetski, Aleksander V.; Mukhopadhyay, Abhishek; Onufriev, Alexey V. (2019-11-29)
      The strong bending of polymers is poorly understood. We propose a general quantitative framework of polymer bending that includes both the weak and strong bending regimes on the same footing, based on a single general ...
    • Strongly correlated electron ground_state energy approximations for Anderson_like models 

      Mancini, Jay D.; Potter, Charles D.; Bowen, Samuel P. (American Institute of Physics, 1987-04-15)
      We report preliminary results of convergence properties for nonperturbative resolvent approximations to Anderson_like models of magnetic ions in metals. Our study is initially focused on the spin_ 1/2 Anderson model for ...
    • Structural Relaxation and Aging Scaling in the Coulomb and Bose Glass Models 

      Assi, H.; Chaturvedi, H.; Pleimling, Michel; Täuber, Uwe C.
      We employ Monte Carlo simulations to study the relaxation properties of the two-dimensional Coulomb glass in disordered semiconductors and the three-dimensional Bose glass in type-II superconductors in the presence of ...
    • Structure and diffusion of nanoparticle monolayers floating at liquid/vapor interfaces: a molecular dynamics study. 

      Cheng, S.; Grest, G. S. (2012-06-07)
      Large-scale molecular dynamics simulations are used to simulate a layer of nanoparticles floating on the surface of a liquid. Both a low viscosity liquid, represented by Lennard-Jones monomers, and a high viscosity liquid, ...
    • Subband engineering even-denominator quantum Hall states 

      Scarola, Vito W.; May, C.; Peterson, M. R.; Troyer, M. (Amer Physical Soc, 2010-09-09)
      Proposed even-denominator fractional quantum Hall effect (FQHE) states suggest the possibility of excitations with non-Abelian braid statistics. Recent experiments on wide square quantum wells observe even-denominator FQHE ...
    • Subband engineering even-denominator quantum Hall states 

      Scarola, Vito W.; May, C.; Peterson, M. R.; Troyer, M. (American Physical Society, 2010-09-09)
      Proposed even-denominator fractional quantum Hall effect (FQHE) states suggest the possibility of excitations with non-Abelian braid statistics. Recent experiments on wide square quantum wells indicate even-denominator ...
    • Superfluid bosons and flux liquids: disorder, thermal fluctuations, and finite-size effects 

      Täuber, Uwe C.; Nelson, David R. (1997-10)
      The influence of different types of disorder (both uncorrelated and correlated) on the superfluid properties of a weakly interacting or dilute Bose gas, as well as on the corresponding quantities for flux line liquids in ...
    • Superfluid-insulator transition in the disordered two-dimensional Bose-Hubbard model 

      Lin, F.; Sorensen, E. S.; Ceperley, D. M. (American Physical Society, 2011-09-13)
      We investigate the superfluid-insulator transition in the disordered two-dimensional Bose-Hubbard model through quantum Monte Carlo simulations. The Bose-Hubbard model is studied in the presence of site disorder, and the ...
    • Supernova Physics at DUNE 

      Ankowski, Artur M.; Beacom, John; Benhar, Omar; Chen, Sun; Cherry, J. J.; Cui, Yanou; Friedland, Alexander; Gil-Botella, Ines; Haghighat, Alireza; Horiuchi, Shunsaku; Huber, Patrick; Kneller, James; Laha, Ranjan; Li, Shirley; Link, Jonathan M.; Lovato, Alessandro; Macias, Oscar; Mariani, Camillo; Mezzacappa, Anthony; O'Connor, Evan; O'Sullivan, Erin; Rubbia, Andre; Scholberg, Kate; Takeuchi, Tatsu (2016)
      The DUNE/LBNF program aims to address key questions in neutrino physics and astroparticle physics. Realizing DUNE’s potential to reconstruct low-energy particles in the 10–100 MeV energy range will bring significant benefits ...
    • Superuniversality in phase-ordering disordered ferromagnets 

      Henkel, M.; Pleimling, M. (American Physical Society, 2008-12)
      The phase-ordering kinetics of the ferromagnetic two-dimensional Ising model with uniform bond disorder is investigated by intensive Monte Carlo simulations. Simple aging behavior is observed in the single-time correlator ...
    • Surface critical behavior in systems with nonequilibrium phase transitions 

      Howard, M.; Frojdh, P.; Lauritsen, K. B. (American Physical Society, 2000-01)
      We study the surface critical behavior of branching-annihilating random walks with an even number of offspring (BARW) and directed percolation (DP) using a variety of theoretical techniques. Above the upper critical ...
    • Surface Criticality at a Dynamic Phase Transition 

      Park, H.; Pleimling, M. (American Physical Society, 2012-10-24)
      In order to elucidate the role of surfaces at nonequilibrium phase transitions, we consider kinetic Ising models with surfaces subjected to a periodic oscillating magnetic field. Whereas, the corresponding bulk system ...
    • Surface inspection via projection interferometry 

      Wygant, R. W.; Almeida, S. P.; Soares, O. D. D. (Optical Society of America, 1988-05)
      Projection fringe interferometry provides a useful technique for nondestructive surface analysis. Two beam interferometric fringes were projected onto a block of aluminum whose surface had various types of grooves cut into ...
    • Switching behavior of semiconducting carbon nanotubes under an external electric field 

      Rochefort, A.; Di Ventra, M.; Avouris, P. (AIP Publishing, 2001-04)
      We investigate theoretically the switching characteristics of semiconducting carbon nanotubes connected to gold electrodes under an external (gate) electric field. We find that the external introduction of holes is necessary ...
    • Symmetry and species segregation in diffusion-limited pair annihilation 

      Hilhorst, H. J.; Washenberger, M. J.; Täuber, Uwe C. (Iop Publishing Ltd, 2004-10-01)
    • Synthesis and characterization of Co2FeAl nanowires 

      Sapkota, Keshab R.; Gyawali, Parshu; Forbes, Andrew; Pegg, Ian L.; Philip, John (American Institute of Physics, 2012-06-15)
      We report the growth and characterization of Co2FeAl nanowires. Nanowires are grown using electrospinning method and the diameters range from 50 to 500 nm. These nanowires exhibit cubic crystal structure with a lattice ...
    • Synthesis kinetics of CdSe quantum dots in trioctylphosphine oxide and in stearic acid 

      Dickerson, B. D.; Irving, D. M.; Herz, E.; Claus, Richard O.; Spillman, W. B.; Meissner, K. E. (AIP Publishing, 2005-04-01)
      A diffusion-barrier model described the early evolution of size-dependent photoluminescence emission from CdSe quantum dots formed by organometallic synthesis. Emission peak widths, emission redshift rates, and nanocrystal ...
    • Systematic Reverse Engineering of Network Topologies: A Case Study of Resettable Bistable Cellular Responses 

      Mondal, Debasish; Dougherty, Edward T.; Mukhopadhyay, Abhishek; Carbo, Adria; Yao, Guang; Xing, Jianhua (Public Library of Science, 2014-08-29)
      A focused theme in systems biology is to uncover design principles of biological networks, that is, how specific network structures yield specific systems properties. For this purpose, we have previously developed a reverse ...
    • Systematic scaling in the low-energy excitations of the t-J model in one and two dimensions 

      Eder, R.; Chen, Y. C.; Lin, H. Q.; Ohta, Y.; Shih, C. T.; Lee, T. K. (American Physical Society, 1997-05-01)
      We present an exact diagonalization study of the low-energy singlet and triplet states for both the one-dimensional (1D) and 2D t-J models. A scan of the parameter ratio J/t shows that for most low-energy states in both ...