Ultrahigh Coercivity Magnetic Force Microscopy Probes to Analyze High-Moment Magnetic Structures and Devices

Autor:	Meir H. Shachar, Nissim Amos, Jeongmin Hong, Dmtri Litvinov, Robert Fernandez, Beomseop Lee, Sakhrat Khizroev, R. Ikkawi
Rok vydání:	2010
Předmět:	Materials science Magnetic moment Condensed matter physics Remanence Electromagnetic shielding Magnetic separation Magnetic force microscope Coercivity Saturation (magnetic) Excitation Electronic Optical and Magnetic Materials
Zdroj:	IEEE Magnetics Letters. 1:6500104-6500104
ISSN:	1949-3088 1949-307X
DOI:	10.1109/lmag.2010.2050679
Popis:	This letter addresses the fabrication and exploitation of ultrahigh coercivity magnetic force microscopy (MFM) probes to characterize high-magnetic moment nanostructures and devices. The L10 phase of FePt alloys together with CrRu and MgO seed layers are investigated as a method of increasing the coercivity of MFM probes to prevent their behavior as soft magnetic probes when used to image energized magnetic devices. The newly developed MFM probes, with coercivity higher than 11 kOe, are utilized to successfully analyze a modern perpendicular magnetic recording write head under various excitation conditions in order to perform writer saturation and remanence tests. The results include MFM micrographs of a fully energized magnetic writer, obtained with a probe-sample separation of only 10 nm.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bd41418f019ca35529da5d5f8bba1f4f https://doi.org/10.1109/lmag.2010.2050679 Zobrazit plný text záznamu