Magnetic Phase Diagram and Spin Glass Behavior of Fe₁₋ₓMnₓCl₂·2H₂O

Author

Gary C. DeFotis
Christoph Pohl
Spencer A. Pugh
Ekkehard Sinn, Missouri University of Science and TechnologyFollow

Abstract

The magnetic phase diagram of Fe_1-xMn_xCl₂·2H₂O has been determined. A tetracritical point appears to be present at x ≊ 0.74 and T≊2.8 K. The upper paramagnetic-antiferromagnetic phase boundaries exhibit an unusually rapid descent, and the mixed ordered region below the tetracritical point is quite small. Moreover, regions exhibiting spin glass character also occur in the diagram. The unusually complex behavior is presumably due to the unique constitution of this system: A mixture of two antiferromagnets with different periodicities, competing orthogonal spin anisotropics, competing ferromagnetic and antiferromagnetic near neighbor intrachain exchange interactions, and substantial next nearest neighbor antiferromagnetic interchain exchange interactions.

Recommended Citation

G. C. DeFotis et al., "Magnetic Phase Diagram and Spin Glass Behavior of Fe₁₋ₓMnₓCl₂·2H₂O," Journal of Chemical Physics, vol. 80, no. 5, pp. 2079 - 2086, American Institute of Physics (AIP), Mar 1984.

The definitive version is available at https://doi.org/10.1063/1.446973

Department(s)

Chemistry

International Standard Serial Number (ISSN)

0021-9606

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 1984 American Institute of Physics (AIP), All rights reserved.

Publication Date

01 Mar 1984