Peculiar behavior of the initial magnetization in CoNi thin films


Altuncevahir B. , KOYMEN A.

JOURNAL OF APPLIED PHYSICS, vol.95, no.12, pp.8051-8053, 2004 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 95 Issue: 12
  • Publication Date: 2004
  • Doi Number: 10.1063/1.1736313
  • Title of Journal : JOURNAL OF APPLIED PHYSICS
  • Page Numbers: pp.8051-8053

Abstract

The initial magnetization curve of ac demagnetized CoNi thin films were outside the hyteresis loop boundary before saturation. Using -dc demagnetization, the initial magnetization curve was brought into the hysteresis loop boundary. Henkel plot shows negative deviation in ac demagnetized CoNi thin film, and both positive and negative deviation, in -dc demagnetized CoNi film. Bitter domain imaging technique showed that the initial magnetization effects are due to the corresponding domain configurations obtained in ac and in -dc demagnetization. (C) 2004 American Institute of Physics.