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)

9258388

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2004 Elsevier, All rights reserved.

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