Axial anisotropy of ${Co}^{2 +}$ in CdS from magnetization-step and high-frequency EPR

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1 December 1994

journal article
research article
Published by American Physical Society (APS) in Physical Review B

Vol. 50 (22) , 16464-16467
https://doi.org/10.1103/physrevb.50.16464

Abstract

A magnetization step due to isolated

{Co}^{2 +}

spins in

{Cd}_{1 - x}

{Co}_{x}

S was observed at 30 mK. The magnetic field at this step gave 2D=1.32±0.04

{cm}^{- 1}

for the single-ion axial anisotropy constant of

{Co}^{2 +}

. This value is close to those obtained by other methods. EPR experiments at 96 GHz gave 2D=1.28±0.04

{cm}^{- 1}

. The EPR data suggest the existence of a Koster-Statz term in the spin Hamiltonian.

Keywords

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