Institut für Experimentalphysik/Festkörperphysik, Ruhr-Universität Bochum, 44780 Bochum, Germany.
J Synchrotron Radiat. 2011 Mar;18(Pt 2):212-6. doi: 10.1107/S0909049510045358. Epub 2010 Dec 1.
A new set-up is presented to measure element-selective magnetization dynamics using the ALICE chamber [Grabis et al. (2003), Rev. Sci. Instrum. 74, 4048-4051] at the BESSY II synchrotron at the Helmholtz-Zentrum Berlin. A magnetic-field pulse serves as excitation, and the magnetization precession is probed by element-selective X-ray resonant magnetic scattering. With the use of single-bunch-generated X-rays a temporal resolution well below 100 ps is reached. The ALICE diffractometer environment enables investigations of thin films, described here, multilayers and laterally structured samples in reflection or diffuse scattering geometry. The combination of the time-resolved set-up with a cryostat in the ALICE chamber will allow temperature-dependent studies of precessional magnetization dynamics and of damping constants to be conducted over a large temperature range and for a large variety of systems in reflection geometry.
本文提出了一种新的装置，用于使用 BESSY II 同步加速器上的 ALICE 室[Grabis 等人，（2003），Rev. Sci. Instrum. 74, 4048-4051]测量元素选择性磁化动力学。磁场脉冲用作激发，元素选择性 X 射线共振磁散射探测磁化进动。使用单束产生的 X 射线，可达到低于 100 ps 的时间分辨率。ALICE 衍射仪环境可用于研究薄膜、这里描述的多层和横向结构样品，采用反射或漫散射几何。将时间分辨装置与 ALICE 室中的低温恒温器相结合，将能够在反射几何中对大温度范围和各种系统进行与进动磁化动力学和阻尼常数相关的温度依赖性研究。
