Effect of ferromagnetic contacts on spin accumulation in an all-metallic lateral spin-valve system: Semiclassical spin drift-diffusion equations
- Title
- Effect of ferromagnetic contacts on spin accumulation in an all-metallic lateral spin-valve system: Semiclassical spin drift-diffusion equations
- Authors
- Kim, Tae-Suk; Lee, B. C.; Lee, Hyun-Woo; null
- Date Issued
- 2008-01
- Publisher
- American Physical Society
- Abstract
- We study the effect of the ferromagnetic (FM) contacts on the spin accumulation in the lateral spin-valve system for the collinear magnetization configurations. When an additional FM electrode is introduced in the all-metallic lateral spin-valve system, we find that the transresistance can be fractionally suppressed or very weakly influenced depending on the position of the additional FM electrode, and relative magnitudes of contact resistance and the bulk resistance defined over the spin-diffusion length. Nonlocal spin signals such as nonlocal voltage drop and leakage spin currents are independent of the magnetization orientation of the additional FM electrode. Even when the additional contact is nonmagnetic, nonlocal spin signals can be changed by the spin current leaking into the nonmagnetic electrode.
- Keywords
- contact resistance; electrodes; ferromagnetism; leakage currents; magnetisation; spin dynamics; spin polarised transport; spin valves; MAGNETIC MULTILAYERS; TRANSPORT; MAGNETORESISTANCE; CHARGE; INTERFACE; INJECTION
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/29180
- DOI
- 10.1103/PHYSREVB.78.
- ISSN
- 1098-0121
- Article Type
- Article
- Files in This Item:
- There are no files associated with this item.
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