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Title: A study of the structural phase transformation and superconductivity in HfV2
Authors: Parsons, M.J.
Brown, P.J.
Crangle, J.
Neumann, K-U.
Ouladdiaf, B.
Smith, T.J.
Zayer, N.K.
Ziebeck, K.R.A.
Issue Date: 1998
Publisher: © Institute of Physics
Citation: PARSONS et al, 1998. A study of the structural phase transformation and superconductivity in HfV2. Journal of Physics: Condensed Matter, 10(38), pp. 8523-8534
Abstract: Specific heat and magnetization measurements on the hard superconductor HfV2 confirm the presence of a structural phase transformation at 117 K and a superconducting transition temperature of 9 K. Above 117 K the compound has the cubic Laves phase C15 structure. High-resolution neutron powder diffraction measurements reveal that below 117 K there is a mixed phase structure consisting predominantly of an orthorhombic component together with a cubic untransformed part. Both of these phases superconduct and their critical temperatures are similar, if not identical. In the normal state the magnetic properties are consistent with those expected for a Pauli paramagnet in which the Fermi level lies just below a high peak in the density of states. These conclusions are supported by band-structure calculations carried out using the linear muffin-tin orbital (LMTO) approximation.
Description: This article was published in the journal, Journal of Physics: Condensed Matter [© Institute of Physics]. It is available at: http://www.iop.org/EJ/journal/JPhysCM.
URI: https://dspace.lboro.ac.uk/2134/1700
ISSN: 0953-8984
Appears in Collections:Closed Access (Physics)

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