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Observing Quantum Level Interference Effects with Electron Spectrometer

100%
Özer Z., Ulu M., Aktaş B., Doğan M.
Acta Physica Polonica A
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2013
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vol. 123
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issue 2
363-364
EN
The existence of Young-type interference patterns has been recently searched in triple differential cross-sections for single ionization of H_2 molecules by electron impact, and theoretically supported by calculations obtained by different models. The appearance of interference effects arising from the two-centre geometry of diatomic molecule. These effects seen in triple differential cross-sections are described by interference factor in analogy with light waves. In this work, we discuss about that the interference factor for molecular structure of H_2 may reproduce Young-type interference patterns depending on scattering angle, initial and ejected electron energies in triple differential cross-sections. Differences are expected in the triple differential cross-sections spectra of ejected electrons according to kinematical conditions imposed by scattering angle and electron energy.
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Ground State and Magnetostatic Properties of a Dipole System Arranged in Two-Dimensional Lattice

88%
Bolcal E., Dimitrov V., Aktaş B., Aslan H., Bozkurt A.
Acta Physica Polonica A
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2012
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vol. 121
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issue 1
257-261
EN
A system of nano sized modomain ferromagnetic particle arranged in two-dimensional lattice is theoretically investigated. The basic aim of the investigation is to find the ground state of these types of models where the interaction is long-ranged and anisotropic. The numerical calculations show that for some lattices there is a number of degenerated states near the zero temperature. The ground state of these systems is basically of a complicated antiferromagnetic type.
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