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Magnetism To Its Lowest Terms: International Research Team Reports The First Observation Of Ferromagnetism In One-Dimensional Monatomic Chains Of Metal Atoms

Date:
March 27, 2002
Source:
Max-Planck-Gesellschaft
Summary:
Progress in atomic engineering makes it now possible to produce one-dimensional (1D) nanostructures tailor-made on the ultimate atomic scale and to probe their physical properties. While an ideal infinite chain of atoms cannot sustain ferromagnetic order at nonzero temperature, an international team of physicists led by Prof. Klaus Kern, Director at the Max-Planck-Institute for Solid State Research in Stuttgart and Professor at the Swiss Federal Institute of Technology in Lausanne, including Dr. Pietro Gambardella at the Swiss Federal Institute of Technology in Lausanne, Prof. W. Eberhardt at the Forschungszentrum Jülich, and Dr. Carlo Carbone at the National Research Council of Italy shows that the finite length of the chains and magnetic anisotropy barriers stabilize ferromagnetism at finite temperatures in monatomic cobalt chains. The persistence of ferromagnetism in monatomic chains has important consequences for the design and properties of magnetic nanostructures, a very active field of physical research and development today.

Progress in atomic engineering makes it now possible to produce one-dimensional (1D) nanostructures tailor-made on the ultimate atomic scale and to probe their physical properties. While an ideal infinite chain of atoms cannot sustain ferromagnetic order at nonzero temperature, an international team of physicists led by Prof. Klaus Kern, Director at the Max-Planck-Institute for Solid State Research in Stuttgart and Professor at the Swiss Federal Institute of Technology in Lausanne, including Dr. Pietro Gambardella at the Swiss Federal Institute of Technology in Lausanne, Prof. W. Eberhardt at the Forschungszentrum Jülich, and Dr. Carlo Carbone at the National Research Council of Italy shows that the finite length of the chains and magnetic anisotropy barriers stabilize ferromagnetism at finite temperatures in monatomic cobalt chains. The persistence of ferromagnetism in monatomic chains has important consequences for the design and properties of magnetic nanostructures, a very active field of physical research and development today. Their results are published this week in Nature (March 21, 2002).


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The above story is based on materials provided by Max-Planck-Gesellschaft. Note: Materials may be edited for content and length.


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Max-Planck-Gesellschaft. "Magnetism To Its Lowest Terms: International Research Team Reports The First Observation Of Ferromagnetism In One-Dimensional Monatomic Chains Of Metal Atoms." ScienceDaily. ScienceDaily, 27 March 2002. <www.sciencedaily.com/releases/2002/03/020326073742.htm>.
Max-Planck-Gesellschaft. (2002, March 27). Magnetism To Its Lowest Terms: International Research Team Reports The First Observation Of Ferromagnetism In One-Dimensional Monatomic Chains Of Metal Atoms. ScienceDaily. Retrieved April 20, 2014 from www.sciencedaily.com/releases/2002/03/020326073742.htm
Max-Planck-Gesellschaft. "Magnetism To Its Lowest Terms: International Research Team Reports The First Observation Of Ferromagnetism In One-Dimensional Monatomic Chains Of Metal Atoms." ScienceDaily. www.sciencedaily.com/releases/2002/03/020326073742.htm (accessed April 20, 2014).

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