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Chapter 6 Amorphous ferromagnets

1980; Elsevier BV; Linguagem: Inglês

10.1016/s1574-9304(05)80121-x

1875-5836

F. E. Luborsky,

Mineralogy and Gemology Studies

This chapter discusses amorphous ferromagnets. The terms "amorphous solid" and "amorphous glass" are generally accepted to mean not crystalline on any significant scale. Simple amorphous solids have random structures but with differing degrees of short-range order depending on the nature of their atomic bonding. Amorphous metals in which nearest neighbor central forces dominate, form structures similar to the random packing of hard spheres. The principal order present is imposed by the roughly constant separation of nearest neighbors. In the past few years, there has been a literary explosion of both theoretical and experimental results on amorphous magnetic alloys. Many series of alloys have now been reported composed of the transition metal alloys with a wide variety of metalloids. The chapter describes the preparation of amorphous metallic solids, the resultant atomic structures, and the experimental methods, which are used to obtain structural information. The chapter also discusses the magnetic properties and their origin.