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A study of the structural phase transformation in the shape memory alloy Co2NbSn
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posted on 2006-05-10, 17:15 authored by Klaus-Ulrich Neumann, T. Kanomata, B. Ouladdiaf, K.R.A. ZiebeckResistivity, specific heat and magnetization measurements on the shape memory
compound Co2NbSn corroborate the presence of ferromagnetic order below
119 K and a structural phase transition at 235 K. High-resolution neutron
powder diffraction measurements confirmed that the high-temperature cubic
phase has the Heusler L21 structure and established that the low-temperature
phase is orthorhombic with space group Pmma. The thermal variation of the
specific heat at low temperatures indicates a high density of states consistent
with electronic structure calculations and a band Jahn–Teller mechanism for
the transformation.
History
School
- Science
Department
- Physics
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113865 bytesCitation
NEUMANN, KANOMATA, OULADDIAF and ZIEBECK, 2002. A study of the structural phase transformation in the shape memory alloy Co2NbSn. Journal of Physics: Condensed Matter, 14(6), pp. 1371-1380Publisher
© Institute of PhysicsPublication date
2002Notes
This is Restricted Access. This article has been published in the journal, Journal of Physics: Condensed Matter [© Institute of Physics]. It is also available at: http://www.iop.org/EJ/journal/JPhysCM.Language
- en