Switching fields of individual Co nanoislands

Sebastian Wedekind, Guillemin Rodary, Jérôme Borme, Safia Ouazi, Yasmine Nahas, Marco Corbetta, Hirofumi Oka, Dirk Sander, Jürgen Kirschner

研究成果: Article査読

3 被引用数 (Scopus)

抄録

We explore the magnetization reversal process of individual Co nanoislands grown on Cu(111) by low temperature spin-polarized scanning tunneling microscopy (spin-STM) and spectroscopy (spin-STS). We measure hysteresis loops of the differential conductance of single Co islands in magnetic fields of up to 4 T. From such hysteresis loops we extract the magnetic switching field of single Co islands as a function of island size. Tentatively we analyze the size dependence of the switching field using the venerable model of thermally assisted coherent magnetization reversal. We present evidence for the failure of that model to explain our experimental results. We propose that the magnetization reversal process within individual Co nanoislands on Cu(111) is a non-coherent process.

本文言語English
論文番号6028209
ページ(範囲)3351-3354
ページ数4
ジャーナルIEEE Transactions on Magnetics
47
10
DOI
出版ステータスPublished - 2011 10
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 電子工学および電気工学

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