Inhomogeneous spin accumulation in Py/Au/Py spin valve

Jang Hae Ku, Joonyeon Chang, Jonghwa Eom, Hyuncheol Koo, Suk Hee Han, Gyutae Kim

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We present that inhomogeneous spin accumulation in a Py/Au/Py spin valve is due to the formation of an edge point contact at the interface. Nonlocal measurements with different voltage probe configurations were carried out to understand the effect of probe location on the spin signal. The spin signal is strongly affected by the probe configuration because of inhomogeneous spin current distribution in the channel as well as different channel length depending on the probe position. Inhomogeneous spin accumulation initiating from the point contact induces the different distribution of spin accumulation flowing into a detector.

Original languageEnglish
Pages (from-to)4530-4533
Number of pages4
JournalPhysica Status Solidi (B) Basic Research
Issue number12
Publication statusPublished - 2007 Dec

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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