Abstract
The spin-dependent scattering of conduction electron in metallic magnetic multilayers was investigated to reveal the optical properties which corresponded to the magnetization state. From the measurement of magnetorefractive effect in antiferro-magnetically exchange coupled Co/Ru multilayers, it was found that (1) the transmittance varied around 1% at wavelength of 1550 nm during the parallel/antiparallel spin alignment changes, (2) as a result of number of repetition and Co thickness for the multilayers, transmittance difference between the parallel and antiparallel spin alignment states had trade-off relationship with the magnitude of transmittance, and (3) asymmetric Co/Ru/Co stacking structure brought different interlayer exchange coupling fields in each layer, which resulted in magnetic field sensitive transmittance.
| Original language | English |
|---|---|
| Pages (from-to) | 27-33 |
| Number of pages | 7 |
| Journal | Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi) |
| Volume | 198 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2017 Feb 1 |
Keywords
- Co/Ru multilayer film
- infrared optical properties
- magnetic multilayer with interlayer exchange coupling
- magnetorefractive effect
- spin-dependent scattering
- transmission measurement under magnetic field
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering