Dielectric and Magnetic Properties of Double Perovskite Manganite.

2014 Fiscal Year Final Research Report

• Project/Area Number: 24540380
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: Yokohama City University
• Principal Investigator: YAMADA Shigeki 横浜市立大学, 生命ナノシステム科学研究科, 准教授 (50312822)
• Co-Investigator(Renkei-kenkyūsha): ARIMA Taka-hisa 東京大学, 新領域創成科学研究科, 教授 (90232066)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 誘電性 / 磁性 / 単結晶 / 低温 / 酸化物 / 強相関電子系

Outline of Final Research Achievements

I have carried out the single crystal growth of double perovskite manganites, and the measurement of the electrical and magnetic properties of these samples. In this study, I succeeded the single crystal growth of the double perovskite manganite for almost rear earths, and the observation of an anomaly of the temperature dependence of the dielectric constant at magnetic phase transition. This anomaly depend on an applied magnetic field. I think these results clearly show the strong coupling between the dielectric and the magnetic properties of the double perovskite manganite.

Free Research Field

固体物理学