特集： ナノ粒子の合成と機能開発の最前線
表面修飾に基づいた室温強磁性ナノ粒子の高機能化
2017 年 38 巻 1 号 p. 30-34
詳細
2017 年 38 巻 1 号 p. 30-34
Nanoparticles can be broadly defined as a material consisting of hundreds to a few thousand atoms with the size below 20 nm. Nanoparticles have been paid considerable attention, due to the application ranging from magnetic recording media, catalysts, and the field of photonics and bioengineering. Our research group has been focused on the development of a novel magnetic nanoparticle where the photomagnetic effect is present. Herein, we introduce our recent research topics about post-functionalization of the room-temperature ferromagnetic FePt nanoparticle via surface modification. In the photochromic molecules-modified FePt nanoparticles, the room-temperature photomagnetic effect was present with high efficiency. Moreover, in the polymer-modified FePt nanoparticles, heat generation under an alternating magnetic field was present through the hysteresis-loss mechanism.
