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Theory and application of chain formation in break junctions.
Thiess, A; Mokrousov, Y; Blügel, S; Heinze, S.
Afiliación
  • Thiess A; Institute of Applied Physics, University of Hamburg, 20355 Hamburg, Germany.
Nano Lett ; 8(8): 2144-9, 2008 Aug.
Article en En | MEDLINE | ID: mdl-18636781
We introduce a generic model of chain formation in break junctions by formulating criteria for the stability and producibility of suspended monatomic chains based on total energy arguments. Using ab initio calculations including spin-polarization and spin-orbit coupling, we apply our model to the formation of monatomic 4d and 5d transition metal (TM) chains. We explain the physical origin of the experimentally observed general trend of increasing probability for the creation of long chains for late 5d TMs and suppressed chain formation for 4d TMs. We also clarify why the probability of chain elongation can be greatly enhanced by the presence of adsorbates in experiments.

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Nano Lett Año: 2008 Tipo del documento: Article País de afiliación: Alemania

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Nano Lett Año: 2008 Tipo del documento: Article País de afiliación: Alemania
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