IEEE Magnetics Society
Distinguished Lecturer for 2007

High Magnetic Anisotropy Nano-Composites andApplications
Prof. Takao Suzuki
Toyota Technological Institute
Magnetic anisotropy is one of the basic properties of magnetic substances. In particular,
magneto-crystalline anisotropy is thought to be intrinsic for bulk materials, but the theoreticalunderstanding is not satisfactory, as is often demonstrated. In multilayers and nanoparticles
where surface or interfacial magnetic anisotropy plays a key role, magnetic behavior issignificantly influenced by extrinsic or induced magnetic anisotropy. Among many alloy systems,
ordered alloys are known to exhibit high magnetic anisotropy; in particular the L10 ordered phase
is of great interest because of applications in bit-patterned magnetic data storage.
Nanocomposite particles with a high magnetic anisotropy phase, together with other magnetic
anisotropies, are the subject of intensive research since they offer potential for various
applications such as hybrid data storage, sensors, and bio-devices.
This tutorial lecture addresses the magnetism and structure of thin films and nanocomposite
particles with a high magnetic anisotropy ordered phase. An in-depth review of magnetic
anisotropy in representative materials is given. Recent developments in high magnetic anisotropyof novel materials, multilayers, and nanocomposites will be presented. Emphasis is placed on
quasi-L12 structured alloy films with very high magnetic anisotropy and on FePt/FeRhnanocomposites of the first-order transition type, in conjunction with possible applications.
Takao Suzuki received the B.S. and M.S. from Waseda University,
Tokyo, in 1962 and 1964, respectively, and the Ph.D. from California
Institute of Technology in 1969. He was a postdoctoral fellow at MaxPlanck Institute in Stuttgart from 1969 through 1972, and was an
associate professor at Tohoku University from 1972 through 1988,
where his research interests included magnetic multilayers with highmagnetic anisotropy for magneto-optical recording, and magnetic
recording applications.
From 1988 through 1995 he worked as a research staff member at IBM
Almaden Research Center in San Jose, California, and was involved
with high density magneto-optical and magnetic recording materials
developments. In 1995 he joined Toyota Technological Institute inNagoya, Japan, as a principal professor. Dr. Suzuki is now a vicepresident and a principal professor of the Institute, and also director of the Academic FrontierCenter sponsored by the Japanese Ministry of Education, Science, Sports and Culture. His
current research interests include the magnetic anisotropy and structure of ordered alloy thin films
and nanoparticles, and high density perpendicular magnetic recording media applications. He has
published more than 260 scientific papers, has written four books, and has 17 patents.
Professor Suzuki is Fellow of the IEEE. He has been active in many Intermag and Magnetismand Magnetic Materials conferences, including serving as program co-chair of MMM in 1995, andas treasurer co-chair of Intermag in 2005. He has served as a member of the AdministrativeCommittee of the IEEE Magnetics Society for several terms. He is on the Editorial Board of IEEE
TRANSACTIONS ON MAGNETICS and is an advisory editor of the Journal of Magnetism andMagnetic Materials.