Anisotropy in the magnetic interaction and lattice-orbital coupling of single crystal Ni₃TeO₆.

ABSTRACT: This investigation reports on anisotropy in the magnetic interaction, lattice-orbital coupling and degree of phonon softening in single crystal Ni₃TeO₆ (NTO) using temperature- and polarization-dependent X-ray absorption spectroscopic techniques. The magnetic field-cooled and zero-field-cooled measurements and temperature-dependent Ni L_3,2-edge X-ray magnetic circular dichroism spectra of NTO reveal a weak Ni-Ni ferromagnetic interaction close to ~60 K (T_SO: temperature of the onset of spin ordering) with a net alignment of Ni spins (the uncompensated components of the Ni moments) along the crystallographic c-axis, which is absent from the ab-plane. Below the Néel temperature, T_N~ 52 K, NTO is stable in the antiferromagnetic state with

SUBMITTER: Ghosh A 

PROVIDER: S-EPMC6202349 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature