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Magnetic anisotropy of single 3d spins on a CuN surface

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    0331977 - FZÚ 2010 RIV US eng J - Journal Article
    Shick, Alexander - Máca, František - Lichtenstein, A.I.
    Magnetic anisotropy of single 3d spins on a CuN surface.
    [Magnetická anizotropie 3d spinů na povrchu CuN.]
    Physical Review. B. Roč. 79, č. 17 (2009), 172409/1-172409/4. ISSN 1098-0121
    R&D Projects: GA AV ČR IAA100100912; GA ČR(CZ) GC202/07/J047
    Grant - others:DFG(DE) SFB668-A3; German-Czech collaboration(DE) 436TSE113/53/0-1
    Institutional research plan: CEZ:AV0Z10100520
    Keywords : magnetic anisotropy * first principle calculations * iron * manganese * CuN
    Subject RIV: BM - Solid Matter Physics ; Magnetism
    Impact factor: 3.475, year: 2009

    First-principles calculations of the magnetic anisotropy energy for Mn and Fe atoms on CuN/Cu(001) surface are performed making use of the torque method. The easy magnetization direction is found to be different for Mn and Fe atoms in accord with the experiment. It is shown that the magnetic anisotropy has a single-ion character and mainly originates from the local magnetic moment of Mn and Fe atoms. The uniaxial magnetic anisotropy constants are calculated in reasonable agreement with the experiment.

    Prvopricipielní výpočty magnetické anizotropní energie pro atomy Fe a Mn na povrchu CuN/Cu(001) ukázaly, že směr snadné osy magnetizace je v souhlasu s experimentem různý pro manganové a železné atomy. Ukázali jsme, že magnetická anizotropie pochází od lokálních magnetických momentů atomů Mn a Fe. Spočtené konstanty magnetické anizotropie jsou v rozumném souhlasu s experimentálními daty.
    Permanent Link: http://hdl.handle.net/11104/0177346

     
     
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