Spin-engineering of magnetic sensor structures

• Main Author: Yeo, Michelle Min Xue
• Other Authors: Lew Wen Siang
• Format: Final Year Project
• Language: English
• Published: 2015
• Subjects: DRNTU::Science::Physics
• Online Access: http://hdl.handle.net/10356/63801
• Institution: Nanyang Technological University

Vast resources are being devoted to the optimization of data recording and storage, this project aims to take a peak into this huge area of growth and advancement of research and is only just a fraction of the magnitude of this area of research. Spin-engineering of magnetic sensor structures is the focus of this report. The procedures that were carried out from fabrication of sample holder, deposition ,Magneto Optical Kerr Effect measurement and Current-In-Plane measurement, aided in the understanding and measurement of the magnitude of exchange bias, coercivity and also GMR ratio. It is regrettable that a GMR ratio of only 4.9% was achieved within the course of this project, and further optimization would be needed to note the achievement of a common ratio of 5 to 10 %. However, the exchange bias noted is with the common range and reported to be in the range of 200 Oe.