Multilayer magnetic properties

Of the many properties of films in their successive stages, those most commonly studied nowadays are the magnetic, electrical and mechanical ones. The magnetic properties and uses of thin films, especially multilayers, have been outlined in Section 7.4 and need not be repeated here however, it is worth pointing out an excellent survey of magnetic multilayers (Grunberg 2000). Electrical properties have been covered by Coutts (1974). 

Wang, Z. J., "Microstructure and Magnetic Properties of Fe-N/TiN Nano-Multilayer, Ph.D. Thesis, University of Science and Technology Beijing, 1996. 

Z.S. Shan and D.J. Sellmyer, Nanoscale rare earth-transition metal multilayers magnetic structure and properties 81... 

On the other hand, for multilayers with 7V>10 (3-D limit) and the same (p) the x shifts clearly to higher temperatures (Fig. 10), a clear indication that the capping modifies the magnetic properties of the Co particles. 

After an introduction to methods of electronic structure calculations, we review how recent trends translate into the description of magnetic nanostructures. Among the considered structures are nanowires, small particles, surfaces and interfaces, and multilayers, and emphasis is on magnetic properties such as moment and magnetization, interatomic exchange, and anisotropy. 

Understanding the magnetic properties of a collection of well-isolated clusters is of great interest for exploring FePt clusters as a media for EHDR beyond 1 Tera bit/in. Dilute FePt C cluster films were prepared by the multilayer method as described earlier. Thus Stoner-Wohlfarth-like behavior has been observed in a FePt C cluster film with FePt volume fraction of 5 %, [45], Figure 27 shows the zero-field-cooled (ZFC) and field-cooled (FC) magnetization curves for as-deposited and annealed FePt C cluster film with 5 vol. % FePt. 

Exchange coupled behaviour was found in bilayer films of SmCo/CoFe, nanocomposites [97, 98], Liu et al. [99] reported high magnetic properties in Sm-Co/Co and Pr-Co/Co sputtered multilayers (juqHc = 4.5 T). Adjusting the fraction of the soft phase was realised by varying the Co-layer thickness. 

Kawaji J et al (2003) Effect of the preparation conditions of a Pd/Si dual seedlayer on the magnetic properties of Co/Pd multilayered perpendicular magnetic recording media. Trans Magn Soc Jpn 13 1-7... 

Kawaji J et al (2004) Micrositructure and magnetic properties of a Co/Pd multilayer on a controlled Pd/Si seed layer for double-layered perpendicular magnetic recording media. J Appl Phys 95 8023-8029... 

Kawaji J et al (2004) Formation of Pd nanocluster seeds by electrochemical process for control of magnetic properties in Co/Pd multilayered film. IEEE Trans Magn 40 2473-2475... 

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