ANALYSIS OF MAGNETIC PROPERTY MEASUREMENTS IN ULTRAFAST MAGNETIZATION DYNAMICS

被引：0

作者：

Wang, X. R. ^{[1
]}

机构：

[1] Hong Kong Univ Sci & Technol, Dept Phys, Hong Kong, Hong Kong, Peoples R China

来源：

MODERN PHYSICS LETTERS B | 2010年 / 24卷 / 21期

关键词：

Ultrafast spectroscopy; magnetization dynamics; magnetization curves; SPIN DYNAMICS; NANOWIRES; REVERSAL;

D O I：

10.1142/S0217984910024717

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Recent efforts in measuring magnetic properties of ferromagnets in their transient states created by the illumination of intensive femtosecond laser pulses are critically re-analyzed. It is concluded that, although various pump-probe architectures can provide certain information about the magnetic properties of disturbed ferromagnets in their transient states, these schemes measured neither coercivity nor remanence defined in the conventional sense. One of the popular experimental schemes cannot even be used to define the working definitions of coercivity and remanence becuase they depend on the details of pumping pulses.

引用

页码：2215 / 2224

页数：10

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