2004
DOI: 10.1103/physrevb.70.165415
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Quantum interference effects on the segregation energy in diluted metallic alloys

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Cited by 4 publications
(5 citation statements)
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“…This quantity is directly related to V and is useful for finding energetically favourable impurity positions and can be used to investigate the dispersion and clustering of impurities 21,22 . For multiple impurities the expression will contain interference terms which result in changes from the single impurity case and can reveal favoured configurations in the lattice.…”
Section: Changes In Total System Energymentioning
confidence: 99%
“…This quantity is directly related to V and is useful for finding energetically favourable impurity positions and can be used to investigate the dispersion and clustering of impurities 21,22 . For multiple impurities the expression will contain interference terms which result in changes from the single impurity case and can reveal favoured configurations in the lattice.…”
Section: Changes In Total System Energymentioning
confidence: 99%
“…com ⃗ R ∥j especificando a posição de cada átomo em um plano l [1]. Dessa forma, para cada ⃗ k = (k x , k y , 0) paralelo, temos um hamiltoniano correspondente a um sistema unidimensional com energias atômicas ϵ l ( ⃗ k) e integrais de transferência t ll ′ ( ⃗ k).…”
Section: Modelagem Do Sistemaunclassified
“…A densidade de estados do sistema [1] é definida em termos das funções de Green através da expressão…”
Section: Funções De Green E Densidade De Estadosunclassified
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“…As a result, we can identify energetically favorable locations for impurities, leading to some degree of spatial segregation in the impurity concentration. Bearing in mind that impurity segregation is known to occur at symmetry-breaking interfaces between two materials due to quantum interference effects 11,12 , it should come as no surprise that the proximity of the two edges of a GNR is capable of inducing similar segregational features in the impurity distribution. What is surprising in the case of GNR is that the segregation may be easily controllable by external factors, which opens the road to manipulating the impurity distribution within a ribbon.…”
mentioning
confidence: 99%