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Title: A study of the structural phase transformation in the shape memory alloy Co2NbSn
Authors: Neumann, K-U.
Kanomata, T.
Ouladdiaf, B.
Ziebeck, K.R.A.
Issue Date: 2002
Publisher: © Institute of Physics
Citation: 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. 1371-1380
Abstract: Resistivity, 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.
Description: 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.
URI: https://dspace.lboro.ac.uk/2134/1682
Appears in Collections:Closed Access (Physics)

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