Testing spin-flip scattering as a possible mechanism of ultrafast demagnetization in ordered magnetic alloys

Stefan Günther; Carlo Spezzani; Roberta Ciprian; Cesare Grazioli; Barbara Ressel; Marcello Coreno; Luca Poletto; Paolo Miotti; Maurizio Sacchi; Giancarlo Panaccione; Vojtěch Uhlíř; Eric E. Fullerton; Giovanni De Ninno; Christian H. Back

doi:10.1103/PhysRevB.90.180407

Testing spin-flip scattering as a possible mechanism of ultrafast demagnetization in ordered magnetic alloys

Stefan Günther, Carlo Spezzani, Roberta Ciprian, Cesare Grazioli, Barbara Ressel, Marcello Coreno, Luca Poletto, Paolo Miotti, Maurizio Sacchi, Giancarlo Panaccione, Vojtěch Uhlíř, Eric E. Fullerton, Giovanni De Ninno, Christian H. Back

Publikation: Beitrag in Fachzeitschrift › Artikel › Begutachtung

28 Zitate (Scopus)

Abstract

We use element-resolved IR-pump/extreme ultraviolet-probe experiments to disentangle the ultrafast interplay of the magnetic sublattices of an ordered crystalline magnetic alloy. As a paradigmatic example, we investigate the case of the FeRh alloy, which shows a delayed response for the different components. Furthermore, a detailed time-resolved magneto-optic study shows that the data can be analyzed by only assuming Elliot-Yafet-like scattering, as the underlying mechanism for ultrafast demagnetization, resulting in an unexpected nonmonotonic dependence of the spin-flip rate, as a function of quenching.

Originalsprache	Englisch
Aufsatznummer	180407
Fachzeitschrift	Physical Review B - Condensed Matter and Materials Physics
Jahrgang	90
Ausgabenummer	18
DOIs	https://doi.org/10.1103/PhysRevB.90.180407
Publikationsstatus	Veröffentlicht - 21 Nov. 2014
Extern publiziert	Ja

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10.1103/PhysRevB.90.180407

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Günther, S., Spezzani, C., Ciprian, R., Grazioli, C., Ressel, B., Coreno, M., Poletto, L., Miotti, P., Sacchi, M., Panaccione, G., Uhlíř, V., Fullerton, E. E., De Ninno, G., & Back, C. H. (2014). Testing spin-flip scattering as a possible mechanism of ultrafast demagnetization in ordered magnetic alloys. Physical Review B - Condensed Matter and Materials Physics, 90(18), Artikel 180407. https://doi.org/10.1103/PhysRevB.90.180407

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title = "Testing spin-flip scattering as a possible mechanism of ultrafast demagnetization in ordered magnetic alloys",

abstract = "We use element-resolved IR-pump/extreme ultraviolet-probe experiments to disentangle the ultrafast interplay of the magnetic sublattices of an ordered crystalline magnetic alloy. As a paradigmatic example, we investigate the case of the FeRh alloy, which shows a delayed response for the different components. Furthermore, a detailed time-resolved magneto-optic study shows that the data can be analyzed by only assuming Elliot-Yafet-like scattering, as the underlying mechanism for ultrafast demagnetization, resulting in an unexpected nonmonotonic dependence of the spin-flip rate, as a function of quenching.",

author = "Stefan G{\"u}nther and Carlo Spezzani and Roberta Ciprian and Cesare Grazioli and Barbara Ressel and Marcello Coreno and Luca Poletto and Paolo Miotti and Maurizio Sacchi and Giancarlo Panaccione and Vojt{\v e}ch Uhl{\'i}{\v r} and Fullerton, {Eric E.} and {De Ninno}, Giovanni and Back, {Christian H.}",

note = "Publisher Copyright: {\textcopyright} 2014 American Physical Society.",

year = "2014",

month = nov,

day = "21",

doi = "10.1103/PhysRevB.90.180407",

language = "English",

volume = "90",

journal = "Physical Review B - Condensed Matter and Materials Physics",

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Günther, S, Spezzani, C, Ciprian, R, Grazioli, C, Ressel, B, Coreno, M, Poletto, L, Miotti, P, Sacchi, M, Panaccione, G, Uhlíř, V, Fullerton, EE, De Ninno, G & Back, CH 2014, 'Testing spin-flip scattering as a possible mechanism of ultrafast demagnetization in ordered magnetic alloys', Physical Review B - Condensed Matter and Materials Physics, Jg. 90, Nr. 18, 180407. https://doi.org/10.1103/PhysRevB.90.180407

TY - JOUR

T1 - Testing spin-flip scattering as a possible mechanism of ultrafast demagnetization in ordered magnetic alloys

AU - Günther, Stefan

AU - Spezzani, Carlo

AU - Ciprian, Roberta

AU - Grazioli, Cesare

AU - Ressel, Barbara

AU - Coreno, Marcello

AU - Poletto, Luca

AU - Miotti, Paolo

AU - Sacchi, Maurizio

AU - Panaccione, Giancarlo

AU - Uhlíř, Vojtěch

AU - Fullerton, Eric E.

AU - De Ninno, Giovanni

AU - Back, Christian H.

PY - 2014/11/21

Y1 - 2014/11/21

N2 - We use element-resolved IR-pump/extreme ultraviolet-probe experiments to disentangle the ultrafast interplay of the magnetic sublattices of an ordered crystalline magnetic alloy. As a paradigmatic example, we investigate the case of the FeRh alloy, which shows a delayed response for the different components. Furthermore, a detailed time-resolved magneto-optic study shows that the data can be analyzed by only assuming Elliot-Yafet-like scattering, as the underlying mechanism for ultrafast demagnetization, resulting in an unexpected nonmonotonic dependence of the spin-flip rate, as a function of quenching.

AB - We use element-resolved IR-pump/extreme ultraviolet-probe experiments to disentangle the ultrafast interplay of the magnetic sublattices of an ordered crystalline magnetic alloy. As a paradigmatic example, we investigate the case of the FeRh alloy, which shows a delayed response for the different components. Furthermore, a detailed time-resolved magneto-optic study shows that the data can be analyzed by only assuming Elliot-Yafet-like scattering, as the underlying mechanism for ultrafast demagnetization, resulting in an unexpected nonmonotonic dependence of the spin-flip rate, as a function of quenching.

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U2 - 10.1103/PhysRevB.90.180407

DO - 10.1103/PhysRevB.90.180407

M3 - Article

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SN - 1098-0121

VL - 90

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 18

M1 - 180407

ER -

Testing spin-flip scattering as a possible mechanism of ultrafast demagnetization in ordered magnetic alloys

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