Photo-Magnonics: Materials and devices
光磁学:材料和器件
基本信息
- 批准号:194872613
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:德国
- 项目类别:Research Grants
- 财政年份:2012
- 资助国家:德国
- 起止时间:2011-12-31 至 2014-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
We demonstrated in the past that by using femtosecond laser experiments, it is possible to pump spin waves with high precession amplitudes efficiently. On the other hand to use spin waves in novel computation and information devices, named magnonics, became appealing. We will open up a new route: combining “magnonics” with optical access — “photo-magnonics”. The central aspect is the implementation of femtosecond laser pulses for excitation and detection of the magnon modes in two dimensional magnonic crystals. In analogy to photonic crystals one observes itinerant spin-wave Bloch states. Of special interest are dipolar spin-wave modes, whose advantage is that their index of refraction can be easily manipulated by changing the magnetization direction. We will focus on certain aspects to advance this emerging field, which is the investigation of the properties of these artificial spin-wave materials, especially an understanding of the controlled localization and delocalization of spin-wave states in periodic anti-dot lattices. This will allow the realization of first devices as photo-magnonic wave guides and active spin-wave elements using the novel source of spin-wave pumping and detection by femtosecond laser pulses at the end of the project period.
我们在过去的实验中证明,通过使用飞秒激光,它是可能的泵高旋进振幅的自旋波有效。另一方面,在新的计算和信息设备中使用自旋波,称为磁振子,变得很有吸引力。我们将开辟一条新的途径:将“磁效应”与光接入相结合--“光磁效应”。本论文的中心工作是利用飞秒激光脉冲激发和探测二维磁振子晶体中的磁振子模。与光子晶体类似,可以观察到流动的自旋波布洛赫态。特别感兴趣的是偶极自旋波模式,其优点是它们的折射率可以很容易地通过改变磁化方向来操纵。我们将集中在某些方面,以推进这一新兴领域,这是这些人工自旋波材料的性质的调查,特别是在周期性反点晶格中的自旋波状态的受控本地化和离域的理解。这将允许在项目期结束时利用飞秒激光脉冲的自旋波泵浦和检测的新来源实现作为光磁子波导和有源自旋波元件的第一个设备。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Professor Dr. Markus Münzenberg其他文献
Professor Dr. Markus Münzenberg的其他文献
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{{ truncateString('Professor Dr. Markus Münzenberg', 18)}}的其他基金
Experiments on giant thermal magnetogalvanic efects in magnetic tunnel junctions
磁隧道结巨热磁电效应实验
- 批准号:
198020709 - 财政年份:2011
- 资助金额:
-- - 项目类别:
Priority Programmes
Spin current effects in nanostructured films
纳米结构薄膜中的自旋电流效应
- 批准号:
5430695 - 财政年份:2004
- 资助金额:
-- - 项目类别:
Priority Programmes
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