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Selected Works of Paul C. Canfield
Article
Magnetic and crystallographic order in α‐manganese
Journal of Applied Physics (1994)
  • A. C. Lawson, Los Alamos National Laboratory
  • Allen C. Larson, Los Alamos National Laboratory
  • M. C. Aronson, Los Alamos National Laboratory
  • S. Johnson, Los Alamos National Laboratory
  • Z. Fisk, Los Alamos National Laboratory
  • Paul C. Canfield, Los Alamos National Laboratory
  • J. D. Thompson, Los Alamos National Laboratory
  • R. B. Von Dreele, Los Alamos National Laboratory
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Abstract
We have made time‐of‐flight neutron diffractionmeasurements on α‐manganese metal. Powder diffraction measurements were made at 14 temperatures between 15 and 305 K, and single crystalmeasurements were made at 15 and 300 K. We found that the crystal structure of α‐Mn is tetragonal below its Néel point of 100 K, with crystal symmetryI4̄2m and magnetic (Shubnikov) symmetry P I 4̄21 c. In agreement with the earlier results of Yamada et al., there are six independent magnetic atoms, and we found that their moments are weakly temperature dependent. The onset of magnetic order causes slight changes in the atomic positions and in the average atomic elastic constant.
Keywords
  • Crystal structure,
  • Crystal symmetry,
  • Elasticity,
  • Neutron diffraction,
  • Powders
Disciplines
Publication Date
1994
DOI
10.1063/1.358024
Publisher Statement
This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Lawson, A. C., Allen C. Larson, M. C. Aronson, S. Johnson, Z. Fisk, P. C. Canfield, J. D. Thompson, and R. B. Von Dreele. "Magnetic and crystallographic order in α‐manganese." Journal of Applied Physics 76, no. 10 (1994): 7049-7051 and may be found at DOI: 10.1063/1.358024. Posted with permission.


Citation Information
A. C. Lawson, Allen C. Larson, M. C. Aronson, S. Johnson, et al.. "Magnetic and crystallographic order in α‐manganese" Journal of Applied Physics Vol. 76 Iss. 10 (1994)
Available at: http://works.bepress.com/paul_canfield/43/