Coupling strength distribution in ferromagnetic/antiferromagnetic film systems

Steenbeck, K.; Mattheis, R.

doi:10.1103/physrevb.75.134419

Cited by 11 publications

(2 citation statements)

References 22 publications

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“…Another crucial mechanism is the 'stretch and twist' effect [15]: helical motions can deform initially straight magnetic field lines into loops which are associated with induced currents parallel to the applied field, j I ∝ B A . This non-linear effect was first tested experimentally by Steenbeck [16] in an arrangement with interlaced channels -note that in this original setup the local helicity h = u · (∇ × u) is strictly zero everywhere, so that the magnetic field diffusion is essential in this process.…”

Section: Helicity and The 'Parker-effect'mentioning

confidence: 99%

Laboratory Dynamo Experiments

Verhille¹,

Plihon²,

Bourgoin³

et al. 2009

Planetary Magnetism

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Section: Helicity and The 'Parker-effect'mentioning

confidence: 99%

Laboratory Dynamo Experiments

Verhille¹,

Plihon²,

Bourgoin³

et al. 2009

Planetary Magnetism

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“…For thick layers, the annealing temperature ( T ann ) may not be enough to set large grains, due to their high blocking temperatures 9. The importance of understanding and characterizing the distribution of T B of AFM layers for applications is therefore evident 10–12. It was also recently shown that a bimodal T B distribution can occur in AFM/FM structures 13–16, 25, 26.…”

Section: Introductionmentioning

confidence: 99%

The influence of annealing on the bimodal distribution of blocking temperatures of exchange biased bilayers

Ventura¹,

Teixeira²,

Paz

et al. 2013

Physica Rapid Research Ltrs

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The exchange bias effect at the interface between antiferromagnetic (AFM) and ferromagnetic (FM) layers is of paramount importance in state‐of‐the‐art spintronic devices. However, a complete account of the physics behind exchange bias remains elusive and new effects are constantly unraveled. In particular, a bimodal distribution of blocking temperatures $ (T_{\rm B})$ was recently discovered, associated with the bulk of the AFM layer and interfacial AFM/FM regions with spin‐glass‐like properties. Here we study exchange bias in MnIr (25, 60 Å)/CoFe (50 Å) bilayers annealed at high temperatures (623 K and 673 K). We observe, for all samples and annealing temperatures, the existence of a large exchange bias variation at low temperatures associated with interfacial disorder. Such variation is more significative in the thinnest samples, where it is found to be independent on annealing temperature. On the other hand, in the thickest samples the contribution of the low temperature distribution largely increases with annealing temperature, due to enhanced disorder arising from Mn diffusion. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Magnetic Interaction Between Polycrystalline Ultrathin Antiferromagnetic and Ferromagnetic Films

Mattheis

Steenbeck

Springer Proceedings in Physics

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Coupling strength distribution in ferromagnetic/antiferromagnetic film systems

Cited by 11 publications

References 22 publications

Laboratory Dynamo Experiments

Laboratory Dynamo Experiments

The influence of annealing on the bimodal distribution of blocking temperatures of exchange biased bilayers

Magnetic Interaction Between Polycrystalline Ultrathin Antiferromagnetic and Ferromagnetic Films

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