Laser-Induced Magnetization Dynamics
Laser-Induced Magnetization Dynamics
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DOI：
10.1007/3-540-46097-7_8
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
B. Koopmans
中科院分区：
文献类型：
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作者：
B. Koopmans
在过去的几年里，关于铁磁金属中激光诱导的超快磁化动力学的大量新数据已经成为可能。最近的许多方法都采用了时间分辨磁光策略。原则上，这些实验提供了对所涉及的基本物理的详细洞察，但很明显，磁光观点是相当间接的。在分析瞬变磁光研究时需要格外小心。短脉冲激光引发的现象包括超快退磁、二向色态填充、压电光效应和激光诱导进动。本章讨论了超快区域中光学和磁学之间的相互作用；提供了实验方案的定量分析；并包括对激光感生磁现象的实验和理论的历史回顾，主要集中在铁磁性过渡金属上。特别强调对实验的微妙解释和最近的突破。
During the past few years, a wealth of new data on laser-induced ultra-fast magnetization dynamics in ferromagnetic metals has become available. Many of the recent approaches employed time-resolved magneto-optical strategies. In principle, these experiments have provided detailed insight into the fundamental physics involved, but it has become clear that the magneto-optical view is rather indirect. Utmost care is needed in analyzing transient magneto-optical studies. Among phenomena triggered by a short laser pulse are ultrafast demagnetization, dichroic state filling, piezo-optical effects and laser-induced precession. This chapter discusses the interplay between optics and magnetism in the ultrafast regime; provides quantitative analysis of experimental schemes; and includes a historical review of experiments and theory on laser-induced magnetic phenomena, predominantly concentrating on ferromagnetic transition metals. Particular emphasis is on the subtle interpretation of experiments and recent breakthroughs therein.