Stoner versus Heisenberg: Ultrafast exchange reduction and magnon generation during laser-induced demagnetization
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چکیده
Emrah Turgut,1 Dmitriy Zusin,1 Dominik Legut,2,3 Karel Carva,3,4 Ronny Knut,1 Justin M. Shaw,5 Cong Chen,1 Zhensheng Tao,1 Hans T. Nembach,5 Thomas J. Silva,5 Stefan Mathias,6 Martin Aeschlimann,7 Peter M. Oppeneer,4 Henry C. Kapteyn,1 Margaret M. Murnane,1 and Patrik Grychtol1 1Department of Physics and JILA, University of Colorado, Boulder, Colorado 80309, USA 2IT4Innovations Center, VSB Technical University of Ostrava, CZ-70833 Ostrava, Czech Republic 3Department of Condensed Matter Physics, Charles University, CZ-12116 Prague 2, Czech Republic 4Department of Physics and Astronomy, Uppsala University, P.O. Box 516, S-75120 Uppsala, Sweden 5Electromagnetics Division, National Institute of Standards and Technology, Boulder, Colorado 80305, USA 6I. Physikalisches Institut, Georg-August-Universität Göttingen, D-37077 Göttingen, Germany 7University of Kaiserslautern and Research Center OPTIMAS, D-67663 Kaiserslautern, Germany (Received 6 May 2016; revised manuscript received 18 November 2016; published 28 December 2016)
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تاریخ انتشار 2016