Geometrical optimization of a local ballistic magnetic sensor

Yuhsuke Kanda, Tatsuya Nomura, Takashi Kimura, Masahiro Hara

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

We have developed a highly sensitive local magnetic sensor by using a ballistic transport property in a two-dimensional conductor. A semiclassical simulation reveals that the sensitivity increases when the geometry of the sensor and the spatial distribution of the local field are optimized. We have also experimentally demonstrated a clear observation of a magnetization process in a permalloy dot whose size is much smaller than the size of an optimized ballistic magnetic sensor fabricated from a GaAs/AlGaAs two-dimensional electron gas.

Original languageEnglish
Article number142408
JournalApplied Physics Letters
Volume104
Issue number14
DOIs
Publication statusPublished - Apr 7 2014

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Geometrical optimization of a local ballistic magnetic sensor'. Together they form a unique fingerprint.

Cite this