Time-resolved demagnetization of Co2MnSi observed using x-ray magnetic circular dichroism and an ultrafast streak camera

Opachich YP, Comin A, Bartelt AF, Young AT, Scholl A, Feng J, Schmalhorst J-M, Shin HJ, Engelhorn K, Risbud SH, Reiss G, et al. (2010)
JOURNAL OF PHYSICS-CONDENSED MATTER 22(15): 156003.

Download
Es wurde kein Volltext hochgeladen. Nur Publikationsnachweis!
Zeitschriftenaufsatz | Veröffentlicht | Englisch
Autor
; ; ; ; ; ; ; ; ; ; ;
Alle
Abstract / Bemerkung
The demagnetization dynamics of the Heusler alloy Co2MnSi was studied using picosecond time-resolved x-ray magnetic circular dichroism. The sample was excited using femtosecond laser pulses. In contrast to the sub-picosecond demagnetization of the metal ferromagnet Ni, substantially slower demagnetization with a time constant of 3.5 +/- 0.5 ps was measured. This could be explained by a spin-dependent band gap inhibiting the spin-flip scattering of hot electrons in Co2MnSi, which is predicted to be half-metallic. A universal demagnetization time constant was measured across a range of pump power levels.
Erscheinungsjahr
Zeitschriftentitel
JOURNAL OF PHYSICS-CONDENSED MATTER
Band
22
Ausgabe
15
Seite(n)
156003
ISSN
eISSN
PUB-ID

Zitieren

Opachich YP, Comin A, Bartelt AF, et al. Time-resolved demagnetization of Co2MnSi observed using x-ray magnetic circular dichroism and an ultrafast streak camera. JOURNAL OF PHYSICS-CONDENSED MATTER. 2010;22(15):156003.
Opachich, Y. P., Comin, A., Bartelt, A. F., Young, A. T., Scholl, A., Feng, J., Schmalhorst, J. - M., et al. (2010). Time-resolved demagnetization of Co2MnSi observed using x-ray magnetic circular dichroism and an ultrafast streak camera. JOURNAL OF PHYSICS-CONDENSED MATTER, 22(15), 156003. doi:10.1088/0953-8984/22/15/156003
Opachich, Y. P., Comin, A., Bartelt, A. F., Young, A. T., Scholl, A., Feng, J., Schmalhorst, J. - M., Shin, H. J., Engelhorn, K., Risbud, S. H., et al. (2010). Time-resolved demagnetization of Co2MnSi observed using x-ray magnetic circular dichroism and an ultrafast streak camera. JOURNAL OF PHYSICS-CONDENSED MATTER 22, 156003.
Opachich, Y.P., et al., 2010. Time-resolved demagnetization of Co2MnSi observed using x-ray magnetic circular dichroism and an ultrafast streak camera. JOURNAL OF PHYSICS-CONDENSED MATTER, 22(15), p 156003.
Y.P. Opachich, et al., “Time-resolved demagnetization of Co2MnSi observed using x-ray magnetic circular dichroism and an ultrafast streak camera”, JOURNAL OF PHYSICS-CONDENSED MATTER, vol. 22, 2010, pp. 156003.
Opachich, Y.P., Comin, A., Bartelt, A.F., Young, A.T., Scholl, A., Feng, J., Schmalhorst, J.-M., Shin, H.J., Engelhorn, K., Risbud, S.H., Reiss, G., Padmore, H.A.: Time-resolved demagnetization of Co2MnSi observed using x-ray magnetic circular dichroism and an ultrafast streak camera. JOURNAL OF PHYSICS-CONDENSED MATTER. 22, 156003 (2010).
Opachich, Y. P., Comin, A., Bartelt, A. F., Young, A. T., Scholl, A., Feng, J., Schmalhorst, Jan-Michael, Shin, H. J., Engelhorn, K., Risbud, S. H., Reiss, Günter, and Padmore, H. A. “Time-resolved demagnetization of Co2MnSi observed using x-ray magnetic circular dichroism and an ultrafast streak camera”. JOURNAL OF PHYSICS-CONDENSED MATTER 22.15 (2010): 156003.

29 References

Daten bereitgestellt von Europe PubMed Central.

Ultrafast spin dynamics in ferromagnetic nickel.
Beaurepaire E, Merle J, Daunois A, Bigot J., Phys. Rev. Lett. 76(22), 1996
PMID: 10061239

AUTHOR UNKNOWN, 0

AUTHOR UNKNOWN, 0

AUTHOR UNKNOWN, 0
Femtosecond electron and spin dynamics in Ni/W(110) films.
Rhie HS, Durr HA, Eberhardt W., Phys. Rev. Lett. 90(24), 2003
PMID: 12857221

AUTHOR UNKNOWN, 0

AUTHOR UNKNOWN, 0
Unifying ultrafast magnetization dynamics.
Koopmans B, Ruigrok JJ, Longa FD, de Jonge WJ., Phys. Rev. Lett. 95(26), 2005
PMID: 16486397

Averitt, J Phys Condens Matter 14(), 2002
Spin polarization in half-metals probed by femtosecond spin excitation.
Muller GM, Walowski J, Djordjevic M, Miao GX, Gupta A, Ramos AV, Gehrke K, Moshnyaga V, Samwer K, Schmalhorst J, Thomas A, Hutten A, Reiss G, Moodera JS, Munzenberg M., Nat Mater 8(1), 2008
PMID: 19079243
Ultrafast spin dynamics and critical behavior in half-metallic ferromagnet: Sr2FeMoO6
Kise T, Ogasawara T, Ashida M, Tomioka Y, Tokura Y, Kuwata-Gonokami M., Phys. Rev. Lett. 85(9), 2000
PMID: 10970664

AUTHOR UNKNOWN, 0
General features of photoinduced spin dynamics in ferromagnetic and ferrimagnetic compounds.
Ogasawara T, Ohgushi K, Tomioka Y, Takahashi KS, Okamoto H, Kawasaki M, Tokura Y., Phys. Rev. Lett. 94(8), 2005
PMID: 15783924

Brown, J Phys Condens Matter 12(), 2000

Galanakis, J Phys D Appl Phys 39(), 2006

Mathon, Physics of Low Dimensional Systems (), 2001

AUTHOR UNKNOWN, 0

AUTHOR UNKNOWN, 0

AUTHOR UNKNOWN, 0

Warwick, Proc. of the 9th Int. Conf. on Synchrotron Radiation Instrumentation 879(), 2006
X-ray circular dichroism and local magnetic fields.
Carra P, Thole BT, Altarelli M, Wang X., Phys. Rev. Lett. 70(5), 1993
PMID: 10054179

AUTHOR UNKNOWN, 0

AUTHOR UNKNOWN, 0

AUTHOR UNKNOWN, 0

AUTHOR UNKNOWN, 0
Femtosecond modification of electron localization and transfer of angular momentum in nickel.
Stamm C, Kachel T, Pontius N, Mitzner R, Quast T, Holldack K, Khan S, Lupulescu C, Aziz EF, Wietstruk M, Durr HA, Eberhardt W., Nat Mater 6(10), 2007
PMID: 17721541

AUTHOR UNKNOWN, 0
Femtosecond electron and spin dynamics in Gd(0001) studied by time-resolved photoemission and magneto-optics.
Lisowski M, Loukakos PA, Melnikov A, Radu I, Ungureanu L, Wolf M, Bovensiepen U., Phys. Rev. Lett. 95(13), 2005
PMID: 16197177
Simple theory for spin-lattice relaxation in metallic rare-earth ferromagnets.
Hubner W, Bennemann KH., Phys. Rev., B Condens. Matter 53(6), 1996
PMID: 9983854

Export

Markieren/ Markierung löschen
Markierte Publikationen

Open Data PUB

Web of Science

Dieser Datensatz im Web of Science®

Quellen

PMID: 21389561
PubMed | Europe PMC

Suchen in

Google Scholar