Magnetic properties of RNi2Si2 compounds (R= rre earth)

The magnetic properties of the orthorhombic compounds GdNi1-xCux have been studied by means of magnetization, resistivity and neutron diffraction measurements. GdNi and GdNi0.7Cu0.3 show ferromagnetic structures while for GdNi0.4Cu0.6 the authors propose a helimagnetic structure. The link between the macroscopic magnetic properties in the ordered phase and the magnetic structures is also stressed. Comparison with other RNi1-xCux compounds with strong magnetocrystalline anisotropy allows one to clarify the role of the magnetic interactions as well as the importance of the magnetocrystalline anisotropy in all these pseudo-binary compounds.

http://iopscience.iop.org/article/10.1088/0953-8984/4/42/012/pdf

Magnetic and electrical properties of GdNi1-xCux compounds

Publisher Summary This chapter discusses the magnetic properties of intermetallic compounds involving rare earth metals. Three different concepts are discussed—namely, magnetism, intermetallic compounds, and rare earth metals. The chapter describes the basic concepts and the central ideas that are connected with the magnetic properties of RnBm intermetallic compounds of rare earth metals R with other metals B. The chapter is concerned with intermetallic compounds where the second component has a moment that is distinctly non-zero. Typical compounds are for instance iron or cobalt compounds. It is concerned with boundary cases that do not fit into the two preceding sections. A typical boundary case will be for instance a system based on YCo 2 , in which a 3D moment appears when a third component is substituted. It also covers some striking phenomena that can be summarized by the term “time dependence.” Some specific hard magnetic materials that are of great technical significance are discussed. The leading compound is SmCo 5 and a general discussion of the significance of this compound with respect to technical applications is presented in the chapter.

J.C. Gomez-sal

Papers

Temperature dependence of the incommensurate magnetic structure of the ErNi0.6Cu0.4 compound