Magnetostriction of the itinerant uniaxial ferromagnet Y2Fe14B

Abstract

Magnetostriction measurements have been performed on a tetragonal Y2Fe14B single crystal along all the major symmetry directions at temperatures ranging from 10 to 400 K and applied magnetic fields up to 14 T. The standard irreducible magnetostrictive modes for tetragonal symmetry, εα,1(c), εα,2(c), εα,1(a), εα,2(a), ε1γ(a), and εε(d), have been obtained from the measurements. Their thermal and applied magnetic-field dependence are discussed. The isotropic volume striction modes have been observed to be one order of magnitude higher than the anisotropic ones.

Influence of Co substitution on magnetoelastic properties of Er2Fe14−xCoxB (x=1, 3 and 5) intermetallic compounds

“…Although some reports are available on the magnetoelastic properties of the RE 2 Fe 14 B compounds [9][10][11], there is no real information on the magnetostriction of the RE 2 Fe 14−x Co x B compounds. In this work, we study the magnetoelastic properties of Er 2 Fe 14−x Co x B compounds, from 77 K up to above their spin reorientation temperatures.…”

Pure crystal field -mode magnetostriction of the itinerant ferromagnet

“…To our knowledge such an isolation has not been ever reported to the degree of accuracy here attained. A preliminary report about our magnetostriction experiments in Y 2 Fe 14 B was presented elsewhere [9].…”