Enhanced spin injection polarization in Co/Cu/Co nonlocal lateral spin valves

Y. Ji, A. Hoffmann, J. E. Pearson, S. D. Bader

Research output: Contribution to journalArticlepeer-review


Nonlocal spin injection is demonstrated in CoCuCo lateral spin valves. Measurement of a series of structures with varying Cu length between the Co electrodes permits a direct determination of both the Cu spin diffusion length λs and the spin injection polarization P at the CoCu interface. The value of λs is 200±20 nm at 10 K and ≥110 nm at 300 K, which is shorter than previously reported, due to the possible presence of impurities in the Cu. However, the value of P is >7%, which is improved compared with previous reports of 2%, which is attributed to a higher interfacial quality.

Original languageEnglish (US)
Article number052509
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Issue number5
StatePublished - 2006
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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