Skip to main content

Kerr Microscopy Studies of SmFe Thin Film

Buy Article:

$113.00 plus tax (Refund Policy)

Abstract:

We are studing Giant Magnetostrictive Materials (GMMs) that have a magnetostriction of 1000 ppm or more. SmFe is one type of GMM. This paper describes the results of measuring the magnetic characteristics and magnetic domain structure of SmFe thin film during the application of a tensile force and for use as a force sensor. The SmFe thin film consists of 17.2% Sm by atomic % and 82.8% Fe by atomic % treated at 250 °C in a vacuum. The results show that the maximum flux density, the remnant flux density, the differential permeability, and the size of the magnetic domain decrease, when the tensile force increases. Finally, this paper describes that it is appropriate to apply the SmFe thin film as a force sensor when an internal stress of 6.2 GPa or less is applied by using the change in the differential permeability; that is, the change in inductance.

Keywords: GIANT MAGNETOSTRICTIVE THIN FILM; KERR MICROSCOPY; MAGNETIC DOMAIN; SAMARIUM; TENSILE FORCE

Document Type: Research Article

DOI: https://doi.org/10.1166/sl.2009.1066

Publication date: 2009-06-01

More about this publication?
  • The growing interest and activity in the field of sensor technologies requires a forum for rapid dissemination of important results: Sensor Letters is that forum. Sensor Letters offers scientists, engineers and medical experts timely, peer-reviewed research on sensor science and technology of the highest quality. Sensor Letters publish original rapid communications, full papers and timely state-of-the-art reviews encompassing the fundamental and applied research on sensor science and technology in all fields of science, engineering, and medicine. Highest priority will be given to short communications reporting important new scientific and technological findings.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more