By Topic

Fully Epitaxial, Exchange Coupled SmCo _{5} /Fe Multilayers With Energy Densities above 400 kJ/m ^{3}

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

5 Author(s)
Neu, V. ; Inst. for Metallic Mater., IFW Dresden, Dresden, Germany ; Sawatzki, S. ; Kopte, M. ; Mickel, C.
more authors

Exchange coupled hard/soft magnetic nanocomposites have long been in the interest of research for improving the energy density of the currently best hard magnetic materials such as Nd2 Fe14B (512 kJ/m3) or SmCo5 (230 kJ/m3). However, to compete with the energy density of a well textured single phase bulk magnet, the hard magnetic phase within the two-phase material should be sufficiently textured as well. Thus, only recently values of more than 300 kJ/m3, i.e., significantly above the theoretical hard phase limit of SmCo5, have been realized in fully epitaxial SmCo5/Fe/SmCo5 trilayers. Here we extend our work to fully epitaxial SmCo5 /Fe multilayers with reduced individual layer thicknesses of Fe and SmCo5. The rigid coupling of a large volume fraction of high moment soft phase to a hard magnetic Sm-Co phase leads to energy densities above 400 kJ/m3. Phase formation, epitaxial texture and magnetic properties are discussed for a series of multilayers of constant total thickness with respect to the number of introduced interfaces.

Published in:

Magnetics, IEEE Transactions on  (Volume:48 ,  Issue: 11 )