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Suppression of the martensitic phase transition and the effect on superconductivity in HfV2
journal contributionposted on 11.05.2006, 13:48 by Sebastian Dressler, Jonathan W. Taylor, B. Ouladdiaf, Klaus-Ulrich Neumann, K.R.A. Ziebeck
HfV2 has been classified as a heavy Fermion system with a superconducting ground state characteristic of strong electron phonon coupling. An instability of the lattice at 117 K is believed to significantly influence the onset of superconductivity below ,9 K. Neutron diffraction and magnetisation measurements carried out on a specimen in which the structural phase transition has been suppressed reveal that the superconducting transition is only slightly reduced to 8:1 ^ 0:1 K: