Magnetic properties of an Fe/Cu granular multilayer
نویسندگان
چکیده
A Cu/Fe granular film, formed from a multilayer film and composed of particles of Fe imbedded in Cu, has had several of its important properties investigated. Measurements include ferromagentic resonance, magnetoresistance, Miissbauer effect, magnetic viscosity, and magnetization. The two-phase behavior of these immiscible alloy systems, and the effect of multilayering on the shape of the magnetic precipitates, can explain some of these properties. An explanation of the ferromagnetic resonance line shape is proffered. An extraordinary macroscopic quantum tunneling effect is found to govern the magnetic relaxation at the lowest temperatures.
منابع مشابه
Magnetic Properties of Fe/Cu Multilayers Prepared Using Pulsed-Current Electrodeposition
[Fe (tFe) nm/Cu (tCu) nm]N multilayer films were prepared using pulsed-current electrodeposition method. The role of the pulsed-current deposition and Fe and Cu layer thicknesses on the magnetic properties was investigated. The microstructure of the multilayer films is dependent on the thicknesses of both the Fe and Cu layers. The saturation magnetization of the multilayers strongly correlated ...
متن کاملLow temperature ordering and high (001) orientation of [Fe/Pt/Cu]<sub>18</sub> multilayer films
Fe/Pt/Cu]18 multilayer films with different Cu thicknesses were prepared on thermally oxidized Si (111) substrates at room temperature using dcand rf-magnetron sputtering. The magnetic properties and microstructure of [Fe/Pt/Cu]18 multilayer films annealed at various temperatures have been investigated. Compared with pure [Fe/Pt]18 multilayer films low-temperature ordering and (001) orientation...
متن کاملCoFe Layers Thickness and Annealing Effect on the Magnetic Behavior of the CoFe/Cu Multilayer Nanowires
CoFe/Cu multilayer nanowires were electrodeposited into anodic aluminum oxide templates prepared by a two-step mild anodization method, using the single-bath technique. Nanowires with 30 nm diameter and the definite lengths were obtained. The effect of CoFe layers thickness and annealing on the magnetic behavior of the multilayer nanowires was investigated. The layers thickness was controlled t...
متن کاملFABRICATION AND SELECTED PROPERTIES OF MULTILAYER Fe/Cu SYSTEMS
M. Spilka, A. Kania, R. Nowosielski, Silesian University of Technology, Institute of Engineering Materials and Biomaterials, Gliwice, Poland. A. Maciej, Silesian University of Technology, Department of Inorganic, Analytical Chemistry and Electrochemistry, Gliwice, Poland. The paper presents investigation results of the structure and selected physical properties of multilayer systems obtained by...
متن کاملEffect of Cobalt Concentration on Structural and Magnetic Properties of Co-Fe Thin Films
Co-Fe films were electrodeposited on Cu substrate from electrolytes with different Co concentration levels. X-ray diffraction (XRD) was used to investigate the films crystal structures. The results indicate that if the Co concentration is less that the Fe concentration, the cubic structure appears in the films, while the hexagonal structure dominates when the C...
متن کامل