Browsing by Author "Kiwi Tichauer, Miguel"
Now showing items 21-36 of 36
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(Universisdad de Chile, 1994)Este trabajo se enmarca dentro de la llamada Física no Lineal, y se refiere al estudio del comportamiento de mapas bidimensionales cuando son sometidos a ciertos cambios respecto de la definición usual de los mapas del ...
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(1989)Many natural phenomena are governed by nonlinear recursive relations of the type xt+1=f(xt), where f does depend on t. We focus our interest on the particularly simple case xt+1=rtxt(1-xt), where rt adopts either periodically ...
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(1973)The models for electronic phase transitions of Ce1-xLax alloys are critically examined. The ideas put forward in the preceding paper are shown to be inconsistent and to lead to unphysical results. Finally, an experimental ...
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Nano-osciladores por transferencia de Spin, un modelo que va más allá de la aproximación macro-spin (Universidad de Chile, 2016)El objetivo general de este trabajo es estudiar la dinámica de la magnetización, tanto en el régimen lineal como no lineal, de la capa ferromagnética libre de una estructura nanopilar, cuando se inyecta una corriente ...
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(2012)Collision processes between single gold and rhodium atoms and gold and rhodium nanoclusters, respectively, are used to study the interplay between the large elastic energies and the much smaller magnetic interactions. The ...
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(Nature Publishing Group, 2018)© 2018, The Author(s).Strong correlation effects emerge from light-matter interactions in coupled resonator arrays, such as the Mott-insulator to superfluid phase transition of atom-photon excitations. We demonstrate that ...
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(Elsevier, 2013)The structural configurations and magnetic properties of zig-zag nanoribbons and nanowires of Fe8−NCoN, for 0≤N≤8, are calculated within the density functional theory. Both, for the zig-zag nanoribbons and the nanowires, ...
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(1971)The problem of spatial variation of the order parameter in the neighborhood of a nonmagnetic impurity with broadened d levels is investigated near the superconducting critical temperature. It is shown that, due to resonance ...
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(2005)The lowest-energy structures of small Pd clusters (2≤N≤13) are computed by means of available phenomenological many-body potentials and by ab initio methods. The lowest-energy configuration is found by means of a genetic ...
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(1997)An analytic solution for the Heisenberg Hamiltonian with arbitrarily long-range, ferromagnetic and/or antiferromagnetic, interactions on a Bethe lattice is obtained in the semiclassical approximation (S→∞). The density of ...
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(Wiley Periodicals, 2013)
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(2016)Transition metal alloy nanoparticles are of interest both theoretically and experimentally, particularly due to their potential technological applications, and to their novel structural and magnetic properties in the ...
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(1973)We have investigated the susceptibility of the Mattis Hamiltonian by means of Green's-function techniques and using a functional-integral formulation. It turns out that it is not possible to obtain an exact solution for ...
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(Sociedad Mexicana de Fisica, 1998)The behavior of free surfaces and of grain boundaries of a bcc Zr system, close to the melting temperature, are investigated using molecular dynamics in combination with a tight-binding potential. Our system consists in ...
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(Universidad de Chile, 1971)
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(Nature Publishing Group, 2018)© 2018, The Author(s). The stochastic dynamics of conserved quantities is an emergent phenomena observed in many complex systems, ranging from social and to biological networks. Using an extension of the Ehrenfest urn model ...
