By Topic

Exchange anisotropy in Fe-MnF2 nanogranular films

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Furubayashi, T. ; Nat. Inst. for Mater. Sci., Tsukuba, Japan ; Mamiya, H.

This paper reports on the magnetic properties of granular films consisting of iron, a ferromagnetic metal, and an insulator MnF2, which is antiferromagnetic below the Neel temperature TN = 67 K. Films were prepared by co-evaporation in vacuum and deposited onto polyimide films. DC magnetization curves recorded by a PPMS magnetometer from 5 to 300 K. Magnetization measurements for the sample with x = 0.25 showed superparamagnetic behavior at 300 K. The sample with x = 0.50 was soft ferromagnetic with the coercive field Hc = 20 Oe at 300 K. X-ray diffraction and Mossbauer spectroscopy were utilized for the characterization of the samples. Above TN, strong ferromagnetic exchange coupling between Fe and MnF2 is dominant. Below TN, each iron particle is magnetized in a random direction as determined by the magnetic anisotropy.

Published in:

Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International

Date of Conference:

4-8 April 2005