Anisotropy of magnetoelastic phenomena in Lu2Fe17 intermetallics

Abstract The anisotropy of magnetoelastic phenomena that accompanies changes of magnetic structures in the Lu2Fe17 intermetallics was studied under pressure. A huge anisotropy in compression ( d ln c/ d p≅2 d l n a/ d p) and thermal expansion ( d ln c/ d T≅−5 d ln a/ d T) of the Lu2Fe17 crystal lattice has been observed under hydrostatic pressure, using micro-strain gauges fixed on the single crystal along principal axes. The dominant role of the lattice c-parameter in the pressure effects is discussed.