Magnetic and Electronic Properties of Polycrystalline and Thin Films of Ceramic Oxides.

陶瓷氧化物多晶和薄膜的磁和电子特性。

• 批准号: 8434-2013
• 负责人: Razavi, Fereidoon
• 金额: $ 1.53万
• 依托单位: Brock University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=568589
• 关键词: Magnetic; Electronic; Properties; Polycrystalline; Thin

Well-controlled electronic, magnetic, and spin-dependent transport in novel materials is of great interest for both technological applications as well as from a fundamental point of view. These parameters provide new opportunities to control their functional properties and to understand the origin of emerging phenomena in such materials. The interest in multiferroic materials is due to the coupling between multiple order parameters such as magnetization, ferroelectric polarization, and strain and lattice properties. The control of ferroelectricity via ferromagnetism and vice versa is an important tool for device applications such as spintronics, sensors and information storage. To use these materials in any future application, we need to: 1- Understand the multiferroic mechanism which can lead to the high ferroelectricity. 2- To develop appropriate techniques for determining the experimental evidence of magnetoelectric interactions and its strength. 3- Recreate multiferroic effects using thin film hetrostructures. My research group's projects are concentrating on several specific oxides such as spinal compound Fe(1-x)MnxAl2O4, CeCrO3,and perovskite, BiVO3 with different properties.

良好控制的电子，磁性和自旋相关的运输在新材料是非常感兴趣的技术应用，以及从一个基本的观点。 这些参数提供了新的机会，以控制其功能特性，并了解这些材料中出现的现象的起源。 对多铁性材料的兴趣是由于多个有序参数之间的耦合，如磁化强度，铁电极化，应变和晶格性质。 通过铁磁性来控制铁电性，反之亦然，是自旋电子学、传感器和信息存储等器件应用的重要工具。为了在未来的任何应用中使用这些材料，我们需要： 1- 了解导致高铁电性的多重铁性机制。 2- 发展适当的技术，以确定磁电的实验证据 相互作用及其强度。 3- 利用薄膜异质结构重建多重铁性效应。 本课题组的研究项目主要集中在几种特定的氧化物上，如具有不同性质的尖晶石化合物Fe（1-x）MnxAl 2 O 4、CeCrO 3和钙钛矿BiVO 3。