Title

A Magnetic and Mössbauer Spectral Study of PrFe₁₁Ti and PrFe₁₁TiH

Abstract

The lattice parameters, magnetic and Mössbauer spectral properties of PrFe11Ti and PrFe11TiH have been measured between 4.2 and 295K. Both compounds crystallize in the ThMn12-type structure. The insertion of hydrogen in PrFe11Ti anisotropically expands the unit-cell volume by 0.4%. Both compounds are ferromagnetically ordered with Curie temperatures of 547 and 604K, respectively. Between 4.2 and 295K, the easy magnetization direction is within the basal plane along the [100] direction as indicated by the Mössbauer spectra which have been fit with a model taking into account both the binomial distribution of titanium near neighbors of the iron atoms and the basal orientation of the magnetic moments.

Department(s)

Chemistry

Keywords and Phrases

Crystallization; Hydrides; Magnetic Anisotropy; Magnetic Moments; Magnetization; Mössbauer Spectroscopy; Phase Diagrams; Gas-solid Reactions; Hydrogen Absorbing Materials; Magnetic Measurements; Praseodymium Alloys; Metal Hydrides; Rare Earth Compounds; Transition Metal Compounds

International Standard Serial Number (ISSN)

0925-8388

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2004 Elsevier, All rights reserved.

Publication Date

01 Sep 2004

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