Experimental exploration of the origin of magnetostriction in single crystalline iron

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2010-08-19
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Xing, Qingfeng
Lograsso, Thomas
Ruffoni, M.
Azimonte, C.
Pascarelli, S.
Miller, D.
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Lograsso, Thomas
Ames Laboratory Division Director
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Ames National Laboratory
Abstract

The magnetostrictive atomic strain in a pure Fe single crystal was measured by differential x-ray absorption spectroscopy. The obtained tetragonal magnetostriction constant, (3/2)λ100, was determined to be 45 ppm, consistent with the previously reported theoretical value calculated from a spin-orbit coupling theory. These results provide a foundation for understanding the origin of magnetostriction in pure Fe as well as Fe-based binary alloys.

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The following article appeared in Applied Physics Letters 97 (2010): 072508 and may be found at http://dx.doi.org/10.1063/1.3481083.

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Fri Jan 01 00:00:00 UTC 2010
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