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The necessary correction concerns Eq. ͑2͒ for the transverse magnetoelectric ͑ME͒ coefficient for a bilayer of magnetostrictive and piezoelectric phases. The exact expression given below takes into account the in-plane piezomagnetic coupling q 12 m measured perpendicular to the static magnetic field:The expression reduces to Eq. ͑2͒ for q 11 m ϭq 12 m . Such a condition, however, is not satisfied in nickel ferrite. Our estimation of q 12 m from data on magnetostriction for the ferrite indicates a small positive value for q 12 m ͑compared to a large negative value for q 11 m ͒. The corrected theoretical values of ␣ E,31 are thus a factor of 2 smaller than the estimates in Figs. 6 and 7. The overall good agreement between data and theory claimed in the work, however, is not affected by the correction to calculated values.

Articles you may be interested inCommunication: A new ab initio potential energy surface for HCl-H2O, diffusion Monte Carlo calculations of D 0 and a delocalized zero-point wavefunction J. Chem. Phys. 138, 121102 (2013); 10.1063/1.4799231 Modeling of the three-body effects in the Ar 2 O − trimer from ab initio calculations The structure and energetics of the Ar n O Ϫ clusters for nϭ1,...,13 have been modeled in the framework of Diffusion Monte Carlo ͑DMC͒, using two-and three-body ab initio determined potentials derived previously by Buchachenko et al. ͓J. Chem. Phys. 112, 5852 ͑2000͔͒, and Jakowski et al. ͓preceding paper, J. Chem. Phys. 118, 2731 ͑2003͔͒, respectively.The anion cluster structures are largely determined by the two-body potential since the dominant contribution to the stabilization energy is due to pair interactions. However, the three-body effects are important since their role grows with n, from a few percent for nϭ2 to ca. 30% for nϭ12. The three-body effects are well approximated by the induction component only. The exchange and dispersion three-body and the induction many-body effects were found to be much less important. The effect of the spin-orbit coupling on the stabilization energies is small and almost independent of the size of a cluster. Specifically, it amounts to about 5% for ArO Ϫ , and to 0.1% for Ar 12 O Ϫ . The ab initio cluster stabilization energies are compared with those derived from the experimental measurements of electron detachment energies. The agreement is qualitatively good, and the origins of quantitative discrepancies are discussed.