Magnetic properties, Mössbauer effect and first principle
calculations study of laves phase HfFe2 |
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| Authors: | J Belošević-Čavor V Koteski N Novaković G Concas F Congiu G Spano |
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| Institution: | (1) Institute of Nuclear Sciences Vinca, P.O. Box 522, 11001 Belgrade, Serbia and Montenegro;(2) Dipartimento di Fisica, Università di Cagliari and CNISM, S. P. Monserrato-Sestu km 0.700, Monserrato CA, 09042, Italy |
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| Abstract: | The magnetic properties and hyperfine interaction parameters for Laves phase
HfFe2 with C14 type structure are studied using SQUID magnetometer and
M?ssbauer measurement. The saturation magnetization, remanent
magnetization, coercive field, magnetic moment per unit formula and the
hyperfine magnetic field at Fe site are reported. In addition, a detailed
theoretical study of the electronic structure and hyperfine magnetic fields
of the two possible HfFe2 structures, C15 and C14, is presented. Using
the full-potential linearized augmented plane wave (FP-LAPW) method as
implemented in the WIEN 97 package, the equilibrium volume, bulk moduli,
magnetic moments and hyperfine magnetic fields for the two structures are
calculated. The obtained results are compared with the measured data. |
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| Keywords: | 71 15 Ap Basis sets 71 20 Lp Intermetallic compounds 71 20 Be Transition metals and alloys 75 50 Bb Fe and its alloys |
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