Szczegóły publikacji
Opis bibliograficzny
Angular harmonic Hall voltage and magnetoresistance measurements of Pt/FeCoB and Pt-Ti/FeCoB bilayers for spin Hall conductivity determination / Witold SKOWROŃSKI, Krzysztof GROCHOT, Piotr RZESZUT, Stanisław ŁAZARSKI, Grzegorz GAJOCH, Cezary WOREK, Jarosław KANAK, Tomasz STOBIECKI, Jürgen Langer, Berthold Ocker, Mehran Vafaee // IEEE Transactions on Electron Devices ; ISSN 0018-9383. — 2021 — vol. 68 no. 12, s. 6379–6385. — Bibliogr. s. 6384–6385, Abstr. — Publikacja dostępna online od: 2021-11-13. — K. Grochot, T. Stobiecki - dod. afiliacja: Faculty of Physics and Applied Computer Science AGH
Autorzy (11)
- AGHSkowroński Witold
- AGHGrochot Krzysztof
- AGHRzeszut Piotr
- AGHŁazarski Stanisław Marek
- AGHGajoch Grzegorz
- AGHWorek Cezary
- AGHKanak Jarosław
- AGHStobiecki Tomasz
- Langer Jürgen
- Ocker Berthold
- Vafaee Mehran
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 138007 |
|---|---|
| Data dodania do BaDAP | 2021-12-21 |
| Tekst źródłowy | URL |
| DOI | 10.1109/TED.2021.3122999 |
| Rok publikacji | 2021 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | IEEE Transactions on Electron Devices |
Abstract
Materials with significant spin-orbit coupling enable efficient spin-to-charge interconversion, which can be utilized in novel spin electronic devices. A number of elements, mainly heavy metals (HMs), have been identified to produce a sizable spin current ( js ), while supplied with a charge current ( j ), detected mainly in the neighboring ferromagnetic (FM) layer. Apart from the spin Hall angle θSH=js/j , spin Hall conductivity ( σSH ) is an important parameter, which takes also the resistivity of the material into account. In this work, we present a measurement protocol of the HM/FM bilayers, which enables for a precise σSH determination. Static transport measurements, including resistivity and magnetization measurements, are accompanied by the angular harmonic Hall voltage analysis in a dedicated low-noise rotating probe station. Dynamic characterization includes effective magnetization and magnetization damping measurement, which enable HM/FM interface absorption calculation. We validate the measurement protocol in Pt and Pt-Ti underlayers in contact with FeCoB and present σSH of up to 3.3×105 S/m, which exceeds the values typically measured in other HM, such as W or Ta.
