Variable temperature andex situspin-polarized low-energy electron microscope

Autor:	Gregor Witte, H. Poppa, E. D. Tober
Rok vydání:	2000
Předmět:	Diffraction Materials science Magnetic domain Analytical chemistry chemistry.chemical_element Surfaces and Interfaces Electron Condensed Matter Physics Polarization (waves) Surfaces Coatings and Films law.invention chemistry Ferromagnetism law Thin film Electron microscope Cobalt
Zdroj:	Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 18:1845-1847
ISSN:	1520-8559 0734-2101
DOI:	10.1116/1.582433
Popis:	The spin-polarized low-energy electron microscope (SPLEEM) at NCEM has been utilized to examine the magnetic domain formation in thin films of Co grown on Au(111) single-crystal surfaces. A new, low-temperature liquid nitrogen cooling system has been added to this instrument, achieving sample temperatures over a wide range (115–2300 K) and enabling the first SPLEEM images to be obtained at below room temperature. Furthermore, the deposition of protective, nonmagnetic capping layers on top of the Co/Au(111) surface is observed to have little effect on the domain shape except for decreasing magnetic contrast due to the attenuation of the diffracted electrons from the Co layer. The magnetic domain contrast is nearly completely restored upon thinning the capping layers by ion bombardment enabling the examination of ex situ prepared samples.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a434b16a9ee412c09e4d7a51e56b67bd https://doi.org/10.1116/1.582433 Zobrazit plný text záznamu