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Development of a scanning Hall probe microscope for simultaneous magnetic and topographic imaging |
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| Authors: | T. Fukumura H. Sugawara K. Kitazawa T. Hasegawa Y. Nagamune T. Noda H. Sakaki |
| Affiliation: | a Department of Applied Chemistry, University of Tokyo, Tokyo, Japan b Department of Superconductivity, University of Tokyo, Tokyo, Japan c CREST, Japan Science and Technology Corporation, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan d Center for Materials Design, Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuda-cho, Midori-ku, Yokohama 226, Japan e Research Center for Advanced Science and Technology, University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153, Japan f Quantum Transition Project, Research Development Corporation of Japan, Park Building, 4-7-6, Komaba, Meguro-ku, Tokyo 153, Japan |
| Abstract: | A scanning Hall probe microscope that is capable of observing both topographic and magnetic images simultaneously has been developed by constructing a conducting needle, used for the scanning tunneling microscope (STM) measurements, adjacent to the Hall junction of 0.6 μm square. The needle also enables the Hall probe to approach the sample without contact and to scan just above it with close proximity. Morphologies and local magnetic distributions on the surfaces of magnetic recording media, observed by our microscope, indicates that lateral spatial resolution is better than 1 μm for both STM and magnetic measurements. |
| Keywords: | Hall probe Tunneling Microscope Magnetism Surface |
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