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Browsing Research Articles (Physics) by Issue Date
Now showing items 1-20 of 540
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(American Institute of Physics, 2002-02-25)Gold Schottky-barrier diodes ~SBDs! were fabricated on vapor-phase-grown single-crystal ZnO. Deep-level transient spectroscopy, using these SBDs, revealed the presence of four electron traps, the major two having levels ...
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(American Institute of Physics, 2005-01)In this paper we investigate the relatively rare phenomenon of iridescence on the outer surface of seashells (not the well known pearly inner surfaces). Using reflection spectroscopy and scanning electron microscopy we ...
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(Elsevier, 2006)We have measured the electrical and annealing properties of defects created in epitaxial and Czochralski-grown Si doped with either B or Ga by electron irradiation using both conventional and Laplace deep level transient ...
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(American Institute of Physics, 2006)The problem of additional time reversal (TR) degeneracy and the transformation properties of ''time reversed' wave functions are investigated. In crystals the one electron Hamiltonian is invariant with respect to a space ...
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(Elsevier, 2006-04)We report results from an experiment designed to characterize, by high-resolution (Laplace) DLTS, the electronic properties of electron radiation induced E-centers in Si associated with P, Sb and As. Four sets of samples ...
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(American Institute of Physics, 2006-06)Basic aspects of quantum entanglement are illustrated in connection with the two-component wavefunction description of spin-1/2 particles. In particular, the time evolution of entanglement in the Stern–Gerlach experiment ...
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(American Institute of Physics, 2006-09)The connection between entanglement and the speed of quantum evolution (as measured by the time needed to reach an orthogonal state) is discussed in the case of two quantum particles moving in a one-dimensional double well. ...
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(American Institute of Physics, 2006-11-10)In an iterative algorithm recently proposed by Waxman for solving eigenvalue problems, we point out that the convergence rate may be improved. For many non-singular symmetric potentials which vanish asymptotically, a simple ...
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(Elsevier, 2007-03)Please open article to read abstract
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(American Institute of Physics, 2007-03-16)There exists an interesting relationship between entanglement and the time evolution of composite quantum systems: quantum entanglement enhances the 'speed' of evolution of certain quantum states, as measured by the time ...
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(Elsevier, 2007-04)Please open article to read abstract
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(American Institute of Physics, 2007-04-07)In this paper we investigate the reflection of circularly polarized light from the exocuticle of the scarabaeid beetle Gymnopleurus virens. Reflection spectra are deeply modulated, exhibiting a number of relatively narrow ...
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(American Institute of Physics, 2007-05)The iterative algorithm recently proposed by Waxman for solving eigenvalue problems, which relies on the method of moments, has been modified to improve its convergence considerably without sacrificing its benefits or ...
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Exploring the development of conceptual understanding through structured problem-solving in Physics (Taylor & Francis, 2007-07)A study on the effect of a structured problem-solving strategy on problem-solving skills and conceptual understanding of physics was undertaken with 189 students in 16 disadvantaged South African schools. This paper focuses ...
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(Academy of Science of South Africa, 2007-11)
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(Elsevier, 2007-12)Please refer to abstract in article
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(Elsevier, 2007-12-15)When using Schottky barrier diodes (SBDs) on silicon (Si) to study the thermal stability of radiation-induced defects, point defects injection into the silicon substrate can occur at temperatures where silicidation occurs. ...
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(Elsevier, 2008)We have examined the effect of Time Reversal Symmetry (TRS) on vibrational modes and on the electronic band structure of Si and Ge. Most of the primary non-interacting modes are not affected by TRS. Only phonons originating ...
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(EPLA, 2008)Entanglement is closely related to some fundamental features of the dynamics of composite quantum systems: quantum entanglement enhances the “speed” of evolution of certain quantum states, as measured by the time required ...
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(Elsevier, 2008)The Space Symmetry and the Time Reversal Symmetry of vibrational modes in Si, Ge and diamond are investigated. Using Space Symmetry we have derived the Lattice Mode Representation. Reducing it onto phonon species we obtain ...
Now showing items 1-20 of 540