Abstract
Spin injection into magnesium from Permalloy is performed in the lateral spin valve geometry. A large spin valve signal of 3.1 mΩ is observed at room temperature. The injector-detector separation dependence of the spin valve signal is analyzed by using a one-dimensional spin-diffusion model. The analysis yields the spin diffusion length of about 200 nm for the Mg nanowires. The short spin diffusion length of magnesium which has a small spin-orbit interaction can possibly be explained by considering the spin-hot-spot relaxation mechanism proposed by Fabian and Das Sarma.
Original language | English |
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Article number | 5772190 |
Pages (from-to) | 1545-1548 |
Number of pages | 4 |
Journal | IEEE Transactions on Magnetics |
Volume | 47 |
Issue number | 6 PART 1 |
DOIs | |
Publication status | Published - 2011 Jun |
Externally published | Yes |
Keywords
- Lateral spin valve
- spin hot spot
- spin injection
- spin relaxation
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering