Finite-sized Heisenberg chains and magnetism of one-dimensional metal systems (Articolo in rivista)

Type
Label
  • Finite-sized Heisenberg chains and magnetism of one-dimensional metal systems (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1007/s00339-005-3364-4 (literal)
Alternative label
  • A. Vindigni; A. Rettori; M. G. Pini; C. Carbone; P. Gambardella (2006)
    Finite-sized Heisenberg chains and magnetism of one-dimensional metal systems
    in Applied physics. A, Materials science & processing (Print); Springer Heidelberg, Heidelberg (Germania)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • A. Vindigni; A. Rettori; M. G. Pini; C. Carbone; P. Gambardella (literal)
Pagina inizio
  • 385 (literal)
Pagina fine
  • 394 (literal)
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  • 82 (literal)
Rivista
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  • Springer. (literal)
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  • 10 (literal)
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  • 3 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1) Dipartimento di Fisica and INFM, Università di Firenze, 50019 Sesto Fiorentino, Italy 2) Istituto dei Sistemi Complessi, Consiglio Nazionale delle Ricerche, 50019 Sesto Fiorentino, Italy 3) Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche, 34012 Trieste, Italy 4) Institut de Physique des Nanostructures, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland (literal)
Titolo
  • Finite-sized Heisenberg chains and magnetism of one-dimensional metal systems (literal)
Abstract
  • We present a combined experimental and theoretical study of the magnetization of one-dimensional atomic cobalt chains deposited on a platinum surface. We discuss the intrinsic magnetization parameters derived by X-ray magnetic circular dichroism measurements and the observation of ferromagnetic order in one dimension in connection with the presence of strong, dimensionality-dependent anisotropy energy barriers of magnetocrystalline origin. An explicit transfer matrix formalism is developed to treat atomic chains of finite length within the anisotropic Heisenberg model. This model allows us to fit the experimental magnetization curves of cobalt monatomic chains, measured parallel to the easy and hard axes, and provides values of the exchange coupling parameter and the magnetic anisotropy energy consistent with those reported in the literature. The analysis of the spin-spin correlation as a function of temperature provides further insight into the tendency to magnetic order in finite-sized one-dimensional systems. (literal)
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