Abstract
Current-perpendicular-to-plane giant magnetoresistance (CPP-GMR) characteristics were investigated in a Co2MnSi (CMS)/Ag/CMS fully epitaxial device and compared to those in a CMS/Cr/CMS device systematically. Reflection high-energy electron diffraction and transmission electron microscopy images showed the two samples had no remarkable differences and little interdiffusion. The large spinasymmetry of electron scattering was found at the CMS/Ag inteface compared with that at the CMS/Cr interface. Finally, the largest magneto-resistance (MR) ratio of 28.8% was observed at room temperature in the CMS/Ag/CMS CPP-GMR device.
| Original language | English |
|---|---|
| Article number | 063003 |
| Journal | Applied Physics Express |
| Volume | 2 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2009 Jun 1 |
ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)
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Iwase, T., Sakuraba, Y., Bosu, S., Saito, K., Mitani, S., & Takanashi, K. (2009). Large interface spin-asymmetry and magnetoresistance in fully epitaxial Co2MnSi/Ag/Co2MnSi current-perpendicular-to-plane magnetoresistive devices. Applied Physics Express, 2(6), [063003]. https://doi.org/10.1143/APEX.2.063003