Scanning Hall probe microscopy of ferromagnetic structures

Howells G., Oral A., Bending S., Andrews S., Squire P., Rice P., ...Daha Fazla

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, cilt.196, ss.917-919, 1999 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 196
  • Basım Tarihi: 1999
  • Doi Numarası: 10.1016/s0304-8853(98)01002-6
  • Dergi Adı: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.917-919
  • Anahtar Kelimeler: scanning probe microscopy, Hall sensors, ferromagnetic materials
  • Orta Doğu Teknik Üniversitesi Adresli: Hayır

Özet

A state-of-the-art scanning Hall probe microscope (magnetic field sensitivity:spatial resolution: 30 nT/root Hz: 0.8 mu m-300 nT/root Hz : 0.25 mu m) has been used to image a range of ferromagnetic media. The technique is non-invasive and yields quantitative profiles of the stray fields near the sample surface as illustrated by images of a standard magnetic reference sample, permalloy nanostructures and colossal magnetoresistive perovskites. Rapid scanning (similar to 1 frame/12 sec) has also been used to study the domain reversal in a thin Ni him. (C) 1999 Published by Elsevier Science B.V. All rights reserved.