Direct evidence of phase separation in as-deposited Fe(Co)-Ag films with giant magnetoresistance

H. Wan, A. Tsoukatos, G. C. Hadjipanayis, Z. G. Li, Jingyue Liu

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

High-resolution analytical electron microscopy (EM) on as-deposited dilute Fe(Co)-Ag films showed Fe(Co) clusters embedded in a Ag matrix suggesting that these materials are not uniform substitutional alloys as it was previously believed. The cluster sizes observed from the EM images are slightly larger than those calculated from magnetization curves, and this has been attributed to the interface roughness existing between the magnetic clusters and the nonmagnetic matrix. The magnetic properties and magnetoresistance values in these films are also discussed relative to the high-resolution electron-microscopy results.

Original languageEnglish (US)
Pages (from-to)1524-1527
Number of pages4
JournalPhysical Review B
Volume49
Issue number2
DOIs
StatePublished - Jan 1 1994

ASJC Scopus subject areas

  • Condensed Matter Physics

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