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Mossbauer study of Fe0.01Ni0.99Cr2S4

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4 Author(s)
Kim, Chul Sung ; Dept. of Phys., Kookmin Univ., Seoul, South Korea ; Ko, Heung Moon ; Ha, Min Yong ; Park, Jae Yun

Fe0.01Ni0.99Cr2S4 has been studied by Mossbauer spectroscopy and X-ray diffraction. The crystal structure is found to be monoclinic with the lattice parameters a=5.910 Å, b=3.410 Å, c=11.11 Å and β=91.50°. Magnetic hyperfine and quadrupole interactions in the antiferromagnetic state at 81 K have been studied, yielding the following results: H=156 kOe, 1/2eqQ(1+1/3 η2)1/2=-2.15 mm/s, θ=59°, φ=90°, and η=0.9. Electronic energy levels of Fe0.01Ni0.99Cr2S4 can be explained in terms of a Hamiltonian involving crystal field energy, spin-orbit couplings, and exchange interactions

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Magnetics, IEEE Transactions on  (Volume:27 ,  Issue: 6 )