Induced magnetization on non-magnetic nanoparticles by surface structural relaxations

2016 Fiscal Year Final Research Report

• Project/Area Number: 26630319
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Inorganic materials/Physical properties
• Research Institution: Okayama University
• Principal Investigator: FUJII Tatsuo 岡山大学, 自然科学研究科, 教授 (10222259)
• Research Collaborator: TAKEMURA Daiki ; ANDOU Daiki
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 反強磁性体 / ペロブスカイト / ナノ粒子 / 誘起強磁性 / 噴霧熱分解 / 塩添加

Outline of Final Research Achievements

In recent years, applications of magnetic nanoparticles in various fields are expected. We found that LaFeO3 nanoparticles having almost no magnetization in bulk form showed large magnetization at low temperatures. Therefore, it should be worth to clarify the mechanism of the induced magnetization systematically to evaluate the relationship between the crystal structure and magnetic properties of LaFeO3 nanoparticles. As a first step, we tried to prepare LaFeO3 nanoparticles with a uniform particle size distribution by using salt-assisted spray pyrolysis. The salt-assisted spray pyrolysis has been expected to synthesize complex oxide nanoparticles with single nanometric sizes.

Free Research Field

無機材料化学