Detection of magnetic state in a nanoscale ferromagnetic ring by using ballistic semiconductor two-dimensional electron gas

Masahiro Hara, Junya Shibata, Takashi Kimura, Yoshichika Otani

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

We have developed a method of measuring magnetization process in a ferromagnetic ring by analyzing a characteristic response of a semiconductor two-dimensional electron gas (2DEG) lying beneath the ring. A 2DEG microcross structure is formed underneath a ferromagnetic ring to detect the position of paired domain walls of the onion state. The variation of the bend resistance due to the rotation of the paired domain walls is quantitatively reproduced by a semiclassical billiard model.

Original languageEnglish
Article number082501
JournalApplied Physics Letters
Volume88
Issue number8
DOIs
Publication statusPublished - Mar 3 2006
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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