Theoretical explanations of magnetocrystalline anisotropy behaviors in R TiFe sub 11 N sub x compounds

Journal Article · Fri Nov 15 04:00:00 EST 1991 · Journal of Applied Physics; (United States)

DOI:https://doi.org/10.1063/1.349861· OSTI ID:5191592

Yang, Y; Pei, X; Li, H; Zhang, X; Kong, L; Pan, Q; Zhang, M ^[1]

---

1. Department of Physics, Peking University, Beijing 100871 (People's Republic of China)

The {ital R}TiFe{sub 11}N{sub {ital x}} compounds have higher Curie temperatures, larger saturation magnetization, and entirely different magnetocrystalline anisotropy behavior as compared with the {ital R}TiFe{sub 11} compounds. In contrast to {ital R}TiFe{sub 11}, the {ital c} axis becomes the easy magnetization direction of {ital R}TiFe{sub 11}N{sub {ital x}} when {ital R}=Nd, Tb, Dy, and Ho, while SmTiFe{sub 11}N{sub {ital x}} has an easy plane and ErTiFe{sub 11}N{sub {ital x}} presents a spin reorientation at about 45 K. Theoretical calculations were made to explain those anisotropy behaviors. The calculation results show that the changes in anisotropy behaviors could be attributed to the large positive contribution of nitrogen atoms located at 2{ital b} interstitial sites to the second-order crystal-field coefficient {ital A}{sub 20}.

• OSTI ID: 5191592
• Journal Information: Journal of Applied Physics; (United States), Journal Name: Journal of Applied Physics; (United States) Vol. 70:10; ISSN 0021-8979; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
CRYSTAL DEFECTS
CRYSTAL FIELD
CRYSTAL STRUCTURE
CURIE POINT
DYSPROSIUM COMPOUNDS
DYSPROSIUM NITRIDES
HOLMIUM COMPOUNDS
HOLMIUM NITRIDES
INTERSTITIALS
IRON COMPOUNDS
IRON NITRIDES
MAGNETIC PROPERTIES
NEODYMIUM COMPOUNDS
NEODYMIUM NITRIDES
NITRIDES
NITROGEN COMPOUNDS
PHYSICAL PROPERTIES
PNICTIDES
POINT DEFECTS
RARE EARTH COMPOUNDS
TERBIUM COMPOUNDS
TERBIUM NITRIDES
THERMODYNAMIC PROPERTIES
TITANIUM COMPOUNDS
TITANIUM NITRIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE