English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Nanoscale spin reversal by non-local angular momentum transfer following ultrafast laser excitation in ferrimagnetic GdFeCo.

Graves, C. E., Reid, A. H., Wang, T., Wu, B., de Jong, S., Vahaplar, K., et al. (2013). Nanoscale spin reversal by non-local angular momentum transfer following ultrafast laser excitation in ferrimagnetic GdFeCo. Nature Materials, 12, 293-298. doi:10.1038/nmat3597.

Item is

Files

show Files
hide Files
:
2367467.pdf (Publisher version), 714KB
 
File Permalink:
-
Name:
2367467.pdf
Description:
-
Visibility:
Restricted (UNKNOWN id 303; )
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-
:
2367467_Suppl.pdf (Supplementary material), 2MB
Name:
2367467_Suppl.pdf
Description:
-
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Graves, C. E., Author
Reid, A. H., Author
Wang, T., Author
Wu, B., Author
de Jong, S., Author
Vahaplar, K., Author
Radu, I., Author
Bernstein, D. P., Author
Messerschmidt, M., Author
Müller, L., Author
Coffee, R., Author
Bionta, M., Author
Epp, S. W., Author
Hartmann, R., Author
Kimmel, N., Author
Hauser, G., Author
Hartmann, A., Author
Holl, P., Author
Gorke, H., Author
Mentink, J. H., Author
Tsukamoto, A., AuthorFognini, A., AuthorTurner, J. J., AuthorSchlotter, W. F., AuthorRolles, D.1, Author              Soltau, H., AuthorStrüder, L., AuthorAcremann, Y., AuthorKimel, A. V., AuthorKirilyuk, A., AuthorRasing, T., AuthorStöhr, J., AuthorScherz, A. O. , AuthorDürr, H. A., Author more..
Affiliations:
1Research Group of Structural Dynamics of (Bio)Chemical Systems, MPI for Biophysical Chemistry, Max Planck Society, ou_578564              

Content

show
hide
Free keywords: -
 Abstract: Ultrafast laser techniques have revealed extraordinary spin dynamics in magnetic materials1, 2, 3, 4, 5, 6 that equilibrium descriptions of magnetism7 cannot explain. Particularly important for future applications is understanding non-equilibrium spin dynamics following laser excitation on the nanoscale, yet the limited spatial resolution of optical laser techniques has impeded such nanoscale studies. Here we present ultrafast diffraction experiments with an X-ray laser that probes the nanoscale spin dynamics following optical laser excitation in the ferrimagnetic alloy GdFeCo, which exhibits macroscopic all-optical switching4, 8, 9. Our study reveals that GdFeCo displays nanoscale chemical and magnetic inhomogeneities that affect the spin dynamics. In particular, we observe Gd spin reversal in Gd-rich nanoregions within the first picosecond driven by the non-local transfer of angular momentum from larger adjacent Fe-rich nanoregions. These results suggest that a magnetic material’s microstructure can be engineered to control transient laser-excited spins, potentially allowing faster (~ 1 ps) spin reversal than in present technologies10, 11, 12.

Details

show
hide
Language(s): eng - English
 Dates: 2013-03-172013
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1038/nmat3597
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Nature Materials
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 12 Sequence Number: - Start / End Page: 293 - 298 Identifier: -