PDF/月刊誌論文/code:pg_1104_16 マテリアル インテグレーション 2011年4月号
MATERIALS INTEGRATION 地域と世界に貢献する東北大学多元物質科学研究所(4,5月合併号)

単一磁性ナノ粒子の振舞い-磁気デバイスの高密度化に向けて-
■著者
東北大学多元物質科学研究所 無機材料研究部門　ナノスケール磁気デバイス分野 北上 修

■要約
For future advance in magnetic and spinelectronic devices, it is essential to understand the magnetic behavior and spin dynamics of a single nanomagnet. However, no effective method has been available for detection of such extremely small magnetic moment. To overcome this difficulty, we have newly developed a highly sensitive magnetic detection technique utilizing the anomalous Hall effect (AHE). This technique enables us to systematically clarify the magnetic behaviors of various materials in the nanoscale regime. In this article, we introduce our research topics including peculiar phase transformation of some magnets, static and dynamic magnetic behaviors of single nanomagnets of L10 FePt and Co/Pt multilayers, and newly proposed magnetic media and technology for ultrahigh density recording.