高磁場表面磁光效應系統及其關鍵技術之探討

To Explore a High Magnetic Field Surface Magneto-Optic Effect System and Its Related Key Technology

蘇炯武(Chiung-Wu Su) ； 張硯筑(Yen-Chu Chang) ； 黃銘祥(Ming-Siang Huang) ； 蔡宗軒(Tsung-Hsuan Tsai)

《科儀新知》 167期 (2008/12) Pp. 73-86

https://doi.org/10.29662/IT.200812.0009

摘要

本文將詳細介紹筆者實驗室如何自行開發表面磁光效應探測技術，並將其應用在超高真空系統環境，成功量測出高達正負3200 Oe磁場強度之磁滯迴圈曲線，以進行基礎磁性質之探討。此外，亦討論一般自行架設儀器系統可能面臨的問題，例如電流源自動控制、光感測器接收、樣品座與真空環境零件選用及光路校準等。本文同時也展示以此技術成功地量測出鐵／矽(Fe/Si)薄膜樣品及氧化鋅晶體ZnO(002)表面上沉積金屬鈷薄膜過程之磁滯曲線變化。

並列摘要

The paper will introduce the development of surface magneto-optic effect technique and how to apply in the ultrahigh vacuum system of author's lab. The magnetic properties such as typical magnetic hysteresis loops can be measured successfully under the field strength reaching as high as ±3200 Oe. We will also discuss the realistic problems about the automatic control of current source, the detection of photo signals, the selection of sample holder and other vacuum components, and photo alignments for the home-made users who want to setup their own device. Besides, authors will show the successful results from the hysteresis loop measurements of Fe/Si samples and observations of the loop variation from the deposition of Co ultrathin films on ZnO (002) crystal surface.