Magnetotransport of lateral Py/Pt/Py spin valve device

Giju Han, Joonyeon Chang, Jonghwa Eom, Hyungjun Kim, Young-geun Kim, Suk Hee Han

Research output: Contribution to journalArticle

Abstract

Spin injection and accumulation have been investigated for Py/Pt/Py lateral spin valves with various channel length. Clear spin valve effects were found at antiparallel magnetic configuration of two ferromagnetic electrodes. The observation of memory effect suggests the spin valve effect observed in Pt channel is resulted from effective spin injection and detection. The magnitude of spin valve signal decreases as the channel length increases. The measurement yields that spin diffusion length and spin injection polarization of Pt channel is 120 nm and 18% at 5K.

Original languageEnglish
Pages (from-to)4534-4537
Number of pages4
JournalPhysica Status Solidi (B) Basic Research
Volume244
Issue number12
DOIs
Publication statusPublished - 2007 Dec 1

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

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