In:
Applied Physics Letters, AIP Publishing, Vol. 91, No. 19 ( 2007-11-05)
Abstract:
We have studied the influence of the Mn content on the elastic properties of Fe–Mn random alloys (space group of Fm3¯m) using ab initio calculations. The magnetic effects in Fe–Mn alloys have a strong influence on the elastic properties, even above the Néel temperature. As the Mn content is increased from 5to40at.%, the C44 elastic constant is unaffected, while C11 and C12 decrease. This behavior can be understood based on the magnetovolume effect which softens the lattice. Since the amplitude of local magnetic moments is less sensitive to volume conserving distortions, the softening is not present during shearing.
Type of Medium:
Online Resource
ISSN:
0003-6951
,
1077-3118
Language:
English
Publisher:
AIP Publishing
Publication Date:
2007
detail.hit.zdb_id:
211245-0
detail.hit.zdb_id:
1469436-0
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