Title

Magnetic and Structural Properties of Nd₂Fe₁₇₋ₓMnₓ Solid Solutions

Abstract

A series of Nd2Fe17-xMnx solid solutions with x values between 0 and and 6 were prepared and analyzed using magnetic measurements, neutron diffraction, and Mössbauer spectroscopy. All of the Nd2Fe17-xMnx samples crystallized in the Th2Zn17-x-type rhombohedral structure. The lattice parameters and unit cell volumes decrease with increasing manganese content up to ∼ x equal to 2, and then increase for higher manganese content. The magnetizations of Nd2Fe17-xMnx decrease with increasing manganese content and Nd2Fe17-xMnx is paramagnetic at room temperature for x greater than 3. The Curie temperature in Nd2Fe17-xMnx solid solutions is maximum for x equal to 0.5 and decreases at a rate of ∼ 10° per substituted manganese up to x equal to 3, after which it drops sharply. These results are discussed in terms of the manganese she occupancies in Nd2Fe17-xMnx. © 1997 American Institute of Physics.

Department(s)

Chemistry

Second Department

Physics

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1997 American Institute of Physics (AIP), All rights reserved.


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