Effective reduction of critical current for current-induced magnetization switching by a Ru layer insertion in an exchange-biased spin valve

Y. Jiang, S. Abe, T. Ochiai, T. Nozaki, A. Hirohata, N. Tezuka, K. Inomata

Research output: Contribution to journalArticlepeer-review

92 Citations (Scopus)

Abstract

The process of current-induced magnetization switching (CIMS) in exchange-biased spin valves (ESPV) was investigated using Ru cap layer insertion. At high critical current density, the ESPVs depicted CIMS behavior under sweeping dc current. The reduced critical current densities for CIMS were observed on insertion of Ru layer between free layer and top electrode. An increase in thickness of free layer also exhibited CIMS behavior. The decrease in current density with insertion of Ru cap layers in ESPVs were also used in current-controlled magnetic storage and sensing devices.

Original languageEnglish
Article number167204
Pages (from-to)167204-1-167204-4
JournalPhysical review letters
Volume92
Issue number16
DOIs
Publication statusPublished - 2004 Apr 23

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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