Michael Ray, Yves C. Martin
Proceedings of SPIE - The International Society for Optical Engineering
Preliminary STM experiments have been performed on a Fe polycrystal using a CoCr magnetic tip. With the usual W-tip, the Fe topography reveals a typical polycrystalline corrugation. The CoCr tip was obtained by cleaving a Si wafer covered with a CoCr film. Its operation was verified to be normal on a Cu single-crystal surface. The combination of Fe sample and CoCr tip leads to a strongly enhanced corrugation as compared to the normal topography. A preliminary explanation, in terms of force enhancement, is based on the interaction of the tip magnetic moment with the field gradient near the sample surface. © 1987 Springer-Verlag.
Michael Ray, Yves C. Martin
Proceedings of SPIE - The International Society for Optical Engineering
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