Electronic structure and Curie temperature of YFe[sub 12[minus][ital x]]Mo[sub [ital x]]N[sub [ital y]] compounds

Journal Article · Sun May 15 04:00:00 EDT 1994 · Journal of Applied Physics; (United States)

DOI:https://doi.org/10.1063/1.355380· OSTI ID:7207524

Fernando, A S; Woods, J P; Jaswal, S S; Welipitiya, D; Patterson, B M; Sellmyer, D J ^[1]

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1. Behlen Laboratory of Physics and Center for Materials Research and Analysis, University of Nebraska, Lincoln, Nebraska 68588-0111 (United States)

The electronic structures of YFe[sub 12[minus][ital x]]Mo[sub [ital x]]N[sub [ital y]] , where [ital x]=1.0, 2.0 and [ital y]=0, 0.7, have been studied with photoemission and spin-polarized calculations. The peak near the Fermi level in the energy distribution curves (EDC) becomes successively broader with larger Mo concentration. The features in the calculated density of state at 1.3 and 2.7 eV are not readily seen in the EDC, and this may be due to lifetime effects in these compounds. Finally, changes in Curie temperature ([ital T][sub [ital c]]) with the change of N or Mo concentration are compared with prediction of the theory of Mohn and Wohlfarth. Reasonable agreement is obtained in the N case but not in the Mo case, the latter most likely due to hybridization of Fe and Mo [ital d] bands.

• OSTI ID: 7207524
• Journal Information: Journal of Applied Physics; (United States), Journal Name: Journal of Applied Physics; (United States) Vol. 75:10; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
CURIE POINT
ELECTRONIC STRUCTURE
EMISSION
IRON COMPOUNDS
MAGNETIC PROPERTIES
MOLYBDENUM COMPOUNDS
NITRIDES
NITROGEN COMPOUNDS
PHOTOEMISSION
PHYSICAL PROPERTIES
PNICTIDES
REFRACTORY METAL COMPOUNDS
SECONDARY EMISSION
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM COMPOUNDS