uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Spin pumping in the Hensler alloy Co2FeAl/MoS2 heterostructure: Ferromagnetic resonance experiment and theory
Indian Inst Technol Delhi, Dept Phys, Thin Film Lab, New Delhi 110016, India.
Natl Inst Technol Kurukshetra, Dept Elect & Commun Engn, Kurukshetra 136119, Haryana, India.
Indian Inst Technol Delhi, Dept Phys, Thin Film Lab, New Delhi 110016, India.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
Show others and affiliations
2018 (English)In: Physical Review B, ISSN 2469-9950, E-ISSN 2469-9969, Vol. 98, no 18, article id 180404Article in journal (Refereed) Published
Abstract [en]

Spin pumping from the full Heusler alloy Co2FeAl film into the transition-metal dichalcogenide MoS2 is reported. Plasma-assisted sulfurization of ion-beam sputtered Mo films of different nominal thicknesses is employed to first fabricate large area high-quality MoS2 sheets [thicknesses: 1, 2, 3, and 4 monolayers (MLs)] on SiO2/Si substrates, followed by deposition of Co2FeAl films with a fixed thickness of 8 nm. The spin pumping is investigated by measuring the changes in the damping constant in the Al(5 nm) capped Co2FeAl/MoS2 bilayers using ferromagnetic resonance spectroscopy. The study demonstrates that even 1 ML of MoS2 possesses high enough spin-orbit coupling strength to enhance damping from 5.5(+/- 0.2) x 10(-3) in Al(5 nm)/Co2FeAl(8 nm) to a nearly saturated value of 8.3(+/- 0.2) x 10(-3) in Al(5 nm)/Co2FeAl(8 nm)/MoS2(1 ML), which is suppressed by inserting a thin Al layer at the Co-2 FeAl/MoS2 interface. The observed enhancement in damping is in agreement with the results from first-principles calculations based on density functional theory. These results open up a paradigm for designing spintronic devices based on heterostructures comprising a full Heusler alloy and the inherently stable MoS2.

Place, publisher, year, edition, pages
AMER PHYSICAL SOC , 2018. Vol. 98, no 18, article id 180404
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:uu:diva-371884DOI: 10.1103/PhysRevB.98.180404ISI: 000450139100001OAI: oai:DiVA.org:uu-371884DiVA, id: diva2:1276147
Funder
Knut and Alice Wallenberg Foundation, KAW 2012.0031Available from: 2019-01-07 Created: 2019-01-07 Last updated: 2019-01-07Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full text

Authority records BETA

Kumar, AnkitBehera, NilamaniSvedlindh, Peter

Search in DiVA

By author/editor
Kumar, AnkitBehera, NilamaniSvedlindh, Peter
By organisation
Solid State Physics
In the same journal
Physical Review B
Condensed Matter Physics

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 23 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf