Abstract
The structural and magnetic properties of mixed compounds Tb1−xYxFe11Mo with x = 0–1.0 have been investigated by means of x-ray diffraction and magnetic measurements. The compounds crystallize in the tetragonal ThMn12-type structure with space group I4/mmm. The lattice parameters a, c and the unit-cell volume V vary slightly with the Y content, since the atomic radius of Y is close to that of Tb. The Curie temperature of the compounds increases for x ⩽ 0.1, then decreases with the increase in the Y concentration. Spin reorientation phenomena in the Tb1−xYxFe11Mo compounds have been studied in detail. The room temperature easy-magnetization direction of Tb1−xYxFe11Mo compounds changes from planar to the c-axial with increasing Y concentration. Variation of the anisotropy constants of the Fe-sublattice K1(Fe) (T) with temperature is determined experimentally. By minimizing the magnetocrystalline anisotropy energy, the derived spin reorientation temperature for the Tb1−xYxFe11Mo system shows reasonable agreement with the observations.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
