Title :
Mossbauer study of Fe0.01Ni0.99Cr2S4
Author :
Kim, Chul Sung ; Ko, Heung Moon ; Ha, Min Yong ; Park, Jae Yun
Author_Institution :
Dept. of Phys., Kookmin Univ., Seoul, South Korea
fDate :
11/1/1991 12:00:00 AM
Abstract :
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
Keywords :
Mossbauer effect; antiferromagnetic properties of substances; chromium compounds; crystal atomic structure of inorganic compounds; crystal hyperfine field interactions; iron compounds; nickel compounds; spin Hamiltonians; Fe0.01Ni0.99Cr2S4; Mossbauer spectroscopy; X-ray diffraction; antiferromagnetic state; crystal field energy; crystal structure; electronic energy levels; exchange interactions; lattice parameters; magnetic hyperfine interactions; quadrupole interactions; spin Hamiltonian; spin-orbit couplings; Chromium; Electrons; Identity-based encryption; Iron; Lattices; Magnetic analysis; Polarization; Solids; Tensile stress;
Journal_Title :
Magnetics, IEEE Transactions on
