Loughborough University

File(s) under permanent embargo

Reason: This item is currently closed access.

A study of the structural phase transformation and superconductivity in HfV2

journal contribution
posted on 2006-05-11, 13:41 authored by Mark J. Parsons, P Brown, J. Crangle, Klaus-Ulrich Neumann, B. Ouladdiaf, T.J. Smith, Nadhum K. Zayer, K.R.A. Ziebeck
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.



  • Science


  • Physics


502434 bytes


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


© Institute of Physics

Publication date



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.




  • en