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Designed Magnetic Nanostructures

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Nanoscale Magnetic Materials and Applications

Abstract

The fabrication, structure, and magnetism of a variety of designed nanostructures are reviewed, from self-assembled thin-film structures and magnetic surface alloys to core–shell nanoparticles and clusters embedded in bulk matrices. The integration of clusters and other nanoscale building blocks in complex two- and three-dimensional nanostructures leads to new physics and new applications. Some explicitly discussed examples are interactions of surface-supported or embedded impurities and clusters, the behavior of quantum states in free and embedded clusters, the preasymptotic coupling of transition-metal dots through substrates, inverted hysteresis loops (proteresis) in core–shell nanoparticles, and nanoscale entanglement of anisotropic magnetic nanodots for future quantum information processing.

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Notes

  1. 1.

    http://math.nist.gov/oommf/

  2. 2.

    The other eigenvalues have no transparent physical meaning, because |m i| > 0 below T c and the approximation m i = 0 are no longer valid.

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Acknowledgments

The contribution of A.E. to this work was supported by NSF CAREER (DMR-0747704), that of R.S. by DoE, and D.J.S. by NSF-MRSEC and INSIC. The authors havebenefited from discussions with X.-H. Wei, R. D. Kirby, S. A. Michalski, S. Enders, J. Zhang, R. Zhang, J. Zhou (Nebraska), and J. Honolka, J. Zhang, V. Sessi, I. Brihuega, and K. Kern (Stuttgart).

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  1. Department of Physics and Astronomy and Nebraska Center for Materials and Nanoscience, University of Nebraska, 68508, Lincoln, NE, USA

    A. Enders, R. Skomski & D.J. Sellmyer

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  1. Dept. Physics, University of Texas, Arlington, Yates Street 502, Arlington, 76019, USA

    J. Ping Liu

  2. Center for Magnetic Recording Research, University of California, San Diego, Gilman Drive 9500, La Jolla, 92093-0401, USA

    Eric Fullerton

  3. Werkstoffforschung (IFW Dresden), Leibniz Institut für Festkörper- und, Helmholtzstr. 20, Dresden, 01069, Germany

    Oliver Gutfleisch

  4. Center for Materials Research &, University of Nebraska, Lincoln, Brace Laboratory 112, Lincoln, 68588-0113, USA

    D.J. Sellmyer

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Enders, A., Skomski, R., Sellmyer, D. (2009). Designed Magnetic Nanostructures. In: Liu, J., Fullerton, E., Gutfleisch, O., Sellmyer, D. (eds) Nanoscale Magnetic Materials and Applications. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-85600-1_3

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