Controlling spin-orbit interaction in a ferromagnetic Fe/Au double layer

Sergey Samarin, O.M. Artamonov, A.P. Baraban, Mikhail Kostylev, Paul Guagliardo, James Williams

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Abstract

© 2015 AIP Publishing LLC. Using spin-polarized single- and two-electron spectroscopy, we probe exchange and spin-orbit interaction in a double layer of Fe and Au on W(110) and measure the spin asymmetry of the Bloch spectral density function of the sample. In a 5ML iron film, the spin-orbit contribution to the measured asymmetry of the (e,2e) spectra was not detectable, whereas a deposition of about 1ML of gold introduced a substantial spin-orbit component in the measured asymmetry. At the same time, this double layer still exhibits ferromagnetic properties: (i) the spectral density function asymmetry demonstrate imbalance of spin-up and spin-down electron densities in the valence band and (ii) the Stoner excitation asymmetry has almost the same value as in a pure Fe film.
Original languageEnglish
Article number042404
Pages (from-to)1-5
Number of pages5
JournalApplied Physics Letters
Volume106
DOIs
Publication statusPublished - 29 Jan 2015

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spin-orbit interactions
asymmetry
orbits
electron spectroscopy
rocks
gold
valence
iron
probes
excitation

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Samarin, Sergey ; Artamonov, O.M. ; Baraban, A.P. ; Kostylev, Mikhail ; Guagliardo, Paul ; Williams, James. / Controlling spin-orbit interaction in a ferromagnetic Fe/Au double layer. In: Applied Physics Letters. 2015 ; Vol. 106. pp. 1-5.
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Samarin, S, Artamonov, OM, Baraban, AP, Kostylev, M, Guagliardo, P & Williams, J 2015, 'Controlling spin-orbit interaction in a ferromagnetic Fe/Au double layer' Applied Physics Letters, vol. 106, 042404, pp. 1-5. https://doi.org/10.1063/1.4906932

Controlling spin-orbit interaction in a ferromagnetic Fe/Au double layer. / Samarin, Sergey; Artamonov, O.M.; Baraban, A.P.; Kostylev, Mikhail; Guagliardo, Paul; Williams, James.

In: Applied Physics Letters, Vol. 106, 042404, 29.01.2015, p. 1-5.

Research output: Contribution to journal › Article

TY - JOUR

T1 - Controlling spin-orbit interaction in a ferromagnetic Fe/Au double layer

AU - Samarin, Sergey

AU - Artamonov, O.M.

AU - Baraban, A.P.

AU - Kostylev, Mikhail

AU - Guagliardo, Paul

AU - Williams, James

PY - 2015/1/29

Y1 - 2015/1/29

N2 - © 2015 AIP Publishing LLC. Using spin-polarized single- and two-electron spectroscopy, we probe exchange and spin-orbit interaction in a double layer of Fe and Au on W(110) and measure the spin asymmetry of the Bloch spectral density function of the sample. In a 5ML iron film, the spin-orbit contribution to the measured asymmetry of the (e,2e) spectra was not detectable, whereas a deposition of about 1ML of gold introduced a substantial spin-orbit component in the measured asymmetry. At the same time, this double layer still exhibits ferromagnetic properties: (i) the spectral density function asymmetry demonstrate imbalance of spin-up and spin-down electron densities in the valence band and (ii) the Stoner excitation asymmetry has almost the same value as in a pure Fe film.

AB - © 2015 AIP Publishing LLC. Using spin-polarized single- and two-electron spectroscopy, we probe exchange and spin-orbit interaction in a double layer of Fe and Au on W(110) and measure the spin asymmetry of the Bloch spectral density function of the sample. In a 5ML iron film, the spin-orbit contribution to the measured asymmetry of the (e,2e) spectra was not detectable, whereas a deposition of about 1ML of gold introduced a substantial spin-orbit component in the measured asymmetry. At the same time, this double layer still exhibits ferromagnetic properties: (i) the spectral density function asymmetry demonstrate imbalance of spin-up and spin-down electron densities in the valence band and (ii) the Stoner excitation asymmetry has almost the same value as in a pure Fe film.

U2 - 10.1063/1.4906932

DO - 10.1063/1.4906932

M3 - Article

VL - 106

SP - 1

EP - 5

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

M1 - 042404

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Samarin S, Artamonov OM, Baraban AP, Kostylev M, Guagliardo P, Williams J. Controlling spin-orbit interaction in a ferromagnetic Fe/Au double layer. Applied Physics Letters. 2015 Jan 29;106:1-5. 042404. https://doi.org/10.1063/1.4906932

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