Distinguishing the ultrafast dynamics of spin and orbital moments in solids

C. Boeglin (), E. Beaurepaire, V. Halté, V. López-Flores, C. Stamm, N. Pontius, H. A. Dürr and J.-Y. Bigot
Additional contact information
C. Boeglin: Institut de Physique et de Chimie des Matériaux de Strasbourg, UMR7504, CNRS et Université de Strasbourg, 23, rue du Loess, 67034 Strasbourg, France
E. Beaurepaire: Institut de Physique et de Chimie des Matériaux de Strasbourg, UMR7504, CNRS et Université de Strasbourg, 23, rue du Loess, 67034 Strasbourg, France
V. Halté: Institut de Physique et de Chimie des Matériaux de Strasbourg, UMR7504, CNRS et Université de Strasbourg, 23, rue du Loess, 67034 Strasbourg, France
V. López-Flores: Institut de Physique et de Chimie des Matériaux de Strasbourg, UMR7504, CNRS et Université de Strasbourg, 23, rue du Loess, 67034 Strasbourg, France
C. Stamm: Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, BESSY II, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
N. Pontius: Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, BESSY II, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
H. A. Dürr: Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, BESSY II, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
J.-Y. Bigot: Institut de Physique et de Chimie des Matériaux de Strasbourg, UMR7504, CNRS et Université de Strasbourg, 23, rue du Loess, 67034 Strasbourg, France

Nature, 2010, vol. 465, issue 7297, 458-461

Abstract: Spin dissection The magnetism produced by electrons in a solid can have two components — spin and orbital moments — that are interchangeable on femtosecond timescales. Christine Boeglin and colleagues have used ultrashort pulses of light to modify the orbital angular momentum of electrons in a magnetic material and to observe, with X-ray pulses, how rapidly this momentum is transferred to the spins. By disentangling the changes in these two components in this way, it is possible to obtain insights into the underlying dynamical processes that could be of value for ultrafast magnetic recording.

Date: 2010
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DOI: 10.1038/nature09070

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