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  • 1
    Electronic Resource
    Electronic Resource
    Magnetic multilayers: A detailed analysis of continuum versus discrete treatments (1994)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 75 (1994), S. 3193-3195 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A critical comparison is made between discrete and continuum treatments put forward to determine the magnetic ordering of exchange coupled superlattices. In particular, our interest is focused on the spatial patterns adopted by the coupling between ferromagnetic layers across the nonmagnetic spacers. We find that for values of the spacer electron Fermi wavevector kF(approximately-greater-than)π/a, where a is the lattice parameter, the continuum model breaks down. This gives rise to interesting interference effects, which emerge in the discrete three–dimensional treatment, but which are missed in a continuum pseudo one–dimensional approximation. The experimental evidence is discussed, and an analytic derivation of the critical kF value is also given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.356145
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Exchange-bias systems with compensated interfaces (1999)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 75 (1999), S. 3995-3997 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: When a ferromagnetic metal (F) is in contact with an antiferromagnet (AF), often a shift of the hysteresis loop away from its normal, symmetric position around H=0, to HE≠0 does occur. This phenomenon is known as exchange bias (EB). We put forward an analytic model, for compensated AF interfaces, based on the AF interface freezing into a metastable canted spin configuration. The EB energy is reversibly stored in a spring-like magnet, or incomplete domain wall, in the F slab. Our theory yields the right values of HE and its F thickness dependence HE∝tF−1. It also predicts the F layer by layer magnetization profile. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.125517
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