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Scanning inverse spin Hall effect spectrometer by shorted coaxial probes.
- Source :
-
Review of Scientific Instruments . Mar2023, Vol. 34 Issue 3, p1-5. 5p. - Publication Year :
- 2023
-
Abstract
- In this work, a scanning inverse spin Hall effect measurement system based on a shorted coaxial resonator has been built, which provides a high throughput method to characterize spin transport properties. The system is capable of performing spin pumping measurements on patterned samples within an area of 100 × 100 mm2. Its capability was demonstrated with Py/Ta bilayer stripes deposited on the same substrate with different thicknesses of Ta. The results show that the spin diffusion length is about 4.2 nm with a conductivity of about 7.5 × 105 Ω−1 m−1, which leads to the conclusion that the intrinsic mechanism of spin relaxation of Ta is the Elliott–Yafet interactions. The spin Hall angle of Ta is estimated to be about −0.014 at room temperature. The setup developed in this work provides a convenient, efficient, and nondestructive way to obtain the spin and electron transportation characteristics of the spintronic materials, which will fertilize this community by developing new materials and figuring out their mechanism. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00346748
- Volume :
- 34
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Review of Scientific Instruments
- Publication Type :
- Academic Journal
- Accession number :
- 162857229
- Full Text :
- https://doi.org/10.1063/5.0138131