Specialized probes with nanowhisker structures for high resolution magnetic force microscopy

2nd International School and Conference Saint-Petersburg OPEN on Optoelectronics, Photonics, Engineering and Nanostructures

Zhukov, M.V.^1,3 ; Belousov, K.I.^1 ; Mozharov, A.M.^2 ; Mukhin, I.S.^1,2 ; Golubok, A.O.^1,3

Department of Material Science and Nanotechnology, ITMO University, Kronverkskiy pr., 49, Saint-Petersburg

197101, Russia^1

Laboratory of Renewable Energy Source, St Petersburg Academic University RAS, Khlopina, 8/3, Saint-Petersburg

194021, Russia^2

Nanotechnology Department, Institute for Analytical Instrumentation RAS, Ivan Chernykh, 31-33, Saint-Petersburg

198095, Russia^3

关键词: Hard disk drives;    High aspect ratio;    High resolution;    High-precision;    Magnetic coatings;    Magnetic probes;    Sample surface;    Spatial resolution;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/643/1/012095/pdf
DOI  :  10.1088/1742-6596/643/1/012095

来源: IOP

【 摘 要 】

Creation and study of specialized nanowhisker probes with magnetic coating are performed for high-precision imaging of various objects by means of atomic force and magnetic force microscopy. Thin layers of Ni and Co are deposited on the surface of nanowhisker structures to perform visualization of magnetic fields on the sample surface, in particular, structure of pits on a hard disk drive (HDD). It is revealed that probes with nanowhisker structures covered with magnetic coating due to their high aspect ratio demonstrate a higher spatial resolution and contrast of magnetic fields visualization in comparison with standard magnetic probes.