研究・研究者
研究会・セミナー
| 演 題 | 「Multiferroic Materials: Unsual Lattice and Optical Effects」 |
|---|---|
| 日 時 | 2006年12月22日(金) 16:00 |
| 講演者 | Dr. Avadh Saxena (Los Alamos National Laboratory) |
| 場 所 | 研究棟201セミナー室 |
| 概 要 | Materials with simultaneous presence of polarization and magnetization are called magnetoelectric multiferroics. We will present a tutorial review on the recent emergence of this novel class of materials. Using mesoscopic modeling with multiple coupled ferroic order parameters (e.g. strain, magnetization, polarization, shuffle modes) we willl investigate the mechanism of this behavior in functional perovskites. The notion of color symmetry will be introduced in order to describe various magnetic phases. The role of long-range, anisotropic interaction such as those arising from either the elastic compatibility constraints or the (polar and magnetic) dipolar interactions in determining the physical properties will be discussed. Multiferroics can also act as possible metamaterials for negative refractive index and unusual nonlinear optical properties. |
| お問合せ先 | CM2 seminar 担当 山下 靖文 |
