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Title: Ultrafast optically induced spin transfer in ferromagnetic alloys

Abstract

The vision of using light to manipulate electronic and spin excitations in materials on their fundamental time and length scales requires new approaches in experiment and theory to observe and understand these excitations. The ultimate speed limit for all-optical manipulation requires control schemes for which the electronic or magnetic subsystems of the materials are coherently manipulated on the time scale of the laser excitation pulse. In our work, we provide experimental evidence of such a direct, ultrafast, and coherent spin transfer between two magnetic subsystems of an alloy of Fe and Ni. Our experimental findings are fully supported by time-dependent density functional theory simulations and, hence, suggest the possibility of coherently controlling spin dynamics on subfemtosecond time scales, i.e., the birth of the research area of attomagnetism.

Authors:
ORCiD logo [1]; ORCiD logo [2];  [3]; ORCiD logo [4]; ORCiD logo [2];  [5]; ORCiD logo [2];  [6]; ORCiD logo [6]; ORCiD logo [4]; ORCiD logo [7];  [2];  [4]; ORCiD logo [8]; ORCiD logo [1];  [9]; ORCiD logo [2]; ORCiD logo [8]
  1. Erwin-Schroedinger Strasse, Kaiserslautern (Germany). Technische Universität Kaiserslautern und Landesforschungszentrum OPTIMAS; Graduate School of Excellence Materials Science in Mainz, (Germany)
  2. Erwin-Schroedinger Strasse, Kaiserslautern (Germany). Technische Universität Kaiserslautern und Landesforschungszentrum OPTIMAS
  3. Max Planck Institute of Microstructure Physics (Germany)
  4. University of Colorado and NIST, Boulder, Colorado (United States). Department of Physics and JILA
  5. University of Colorado and NIST, Boulder, Colorado (United States). Department of Physics and JILA; National Institute of Standards and Technology, Boulder, Colorado (United States). Quantum Electromagnetics Division
  6. National Institute of Standards and Technology, Boulder, Colorado (United States). Quantum Electromagnetics Division
  7. Technische Universität Dortmund (Germany). Experimentelle Physik VI
  8. Physikalisches Institut (Germany). Georg-August-Universität Göttingen, I
  9. Max Born Institute for Nonlinear Optics (Germany)
Publication Date:
Research Org.:
Univ. of Colorado, Boulder, CO (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1626054
Grant/Contract Number:  
SC0002002
Resource Type:
Accepted Manuscript
Journal Name:
Science Advances
Additional Journal Information:
Journal Volume: 6; Journal Issue: 3; Journal ID: ISSN 2375-2548
Publisher:
AAAS
Country of Publication:
United States
Language:
English
Subject:
Science & Technology - Other Topics

Citation Formats

Hofherr, M., Häuser, S., Dewhurst, J. K., Tengdin, P., Sakshath, S., Nembach, H. T., Weber, S. T., Shaw, J. M., Silva, T. J., Kapteyn, H. C., Cinchetti, M., Rethfeld, B., Murnane, M. M., Steil, D., Stadtmüller, B., Sharma, S., Aeschlimann, M., and Mathias, S. Ultrafast optically induced spin transfer in ferromagnetic alloys. United States: N. p., 2020. Web. doi:10.1126/sciadv.aay8717.
Hofherr, M., Häuser, S., Dewhurst, J. K., Tengdin, P., Sakshath, S., Nembach, H. T., Weber, S. T., Shaw, J. M., Silva, T. J., Kapteyn, H. C., Cinchetti, M., Rethfeld, B., Murnane, M. M., Steil, D., Stadtmüller, B., Sharma, S., Aeschlimann, M., & Mathias, S. Ultrafast optically induced spin transfer in ferromagnetic alloys. United States. doi:10.1126/sciadv.aay8717.
Hofherr, M., Häuser, S., Dewhurst, J. K., Tengdin, P., Sakshath, S., Nembach, H. T., Weber, S. T., Shaw, J. M., Silva, T. J., Kapteyn, H. C., Cinchetti, M., Rethfeld, B., Murnane, M. M., Steil, D., Stadtmüller, B., Sharma, S., Aeschlimann, M., and Mathias, S. Wed . "Ultrafast optically induced spin transfer in ferromagnetic alloys". United States. doi:10.1126/sciadv.aay8717. https://www.osti.gov/servlets/purl/1626054.
@article{osti_1626054,
title = {Ultrafast optically induced spin transfer in ferromagnetic alloys},
author = {Hofherr, M. and Häuser, S. and Dewhurst, J. K. and Tengdin, P. and Sakshath, S. and Nembach, H. T. and Weber, S. T. and Shaw, J. M. and Silva, T. J. and Kapteyn, H. C. and Cinchetti, M. and Rethfeld, B. and Murnane, M. M. and Steil, D. and Stadtmüller, B. and Sharma, S. and Aeschlimann, M. and Mathias, S.},
abstractNote = {The vision of using light to manipulate electronic and spin excitations in materials on their fundamental time and length scales requires new approaches in experiment and theory to observe and understand these excitations. The ultimate speed limit for all-optical manipulation requires control schemes for which the electronic or magnetic subsystems of the materials are coherently manipulated on the time scale of the laser excitation pulse. In our work, we provide experimental evidence of such a direct, ultrafast, and coherent spin transfer between two magnetic subsystems of an alloy of Fe and Ni. Our experimental findings are fully supported by time-dependent density functional theory simulations and, hence, suggest the possibility of coherently controlling spin dynamics on subfemtosecond time scales, i.e., the birth of the research area of attomagnetism.},
doi = {10.1126/sciadv.aay8717},
journal = {Science Advances},
number = 3,
volume = 6,
place = {United States},
year = {2020},
month = {1}
}

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