Tailoring macroscopic functionalities in a semiconducting oxide (C09*)

定制半导体氧化物 (C09*) 的宏观功能

• 批准号: 418557933
• 金额: --
• 依托单位: Lehrstuhl für Experimentelle Physik VI
• 依托单位国家: 德国
• 项目类别: CRC/Transregios
• 财政年份: 2019
• 资助国家: 德国
• 起止时间: 2018-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/418557933?language=en
• 关键词: Tailoring; macroscopic; functionalities; semiconducting; oxide

In this project we aim at controlling both the steady and transient functionalities in the ferromagnetic oxide semiconductor EuO. Two complementary approaches will be employed: advanced crystal engineering - to control the steady state, and femtosecond optical excitation - to control the transient state. The advanced engineering approach relies on the preparation and characterization of EuO thin films in different lateral configurations and dimensions to generate epitaxial strain, proximity, or quantum confinement effects. As a following step, we will employ time-resolved magneto-optical and photoemission experiments to explore the femtosecond electron and spin dynamics with the main aim of manipulating the magnetic order in the steady-states induced via advanced crystal engineering.

在这个项目中，我们的目标是控制在铁磁氧化物半导体EuO的稳态和瞬态功能。将采用两种互补的方法：先进的晶体工程-控制稳态，飞秒光激发-控制瞬态。先进的工程方法依赖于EuO薄膜在不同的横向配置和尺寸的制备和表征，以产生外延应变，邻近或量子限制效应。作为后续步骤，我们将采用时间分辨的磁光和光电发射实验来探索飞秒电子和自旋动力学，主要目的是操纵通过先进的晶体工程诱导的稳定状态下的磁序。