Superconductivity in Hf5Sb3-xRux: Are Ru and Sb a Critical Charge-Transfer Pair for Superconductivity?

Weiwei Xie, Huixia Luo, Elizabeth M. Seibel, Morten B. Nielsen, Robert J. Cava

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


Sperconductivity remains unpredictable for new compounds because, from the physics perspective, it results from instabilities in a compound's electronic system that are delicately balanced with other factors such as electron-lattice coupling or magnetism. In contrast to the quantitative k space or Fermi surface view often employed in the hunt for superconductivity, the concept of critical charge transfer pairs is clearly a qualitative, real space view of what can give rise to superconductivity. However, this can be an equally important and productive viewpoint, especially from the perspective of the synthetic chemistry. Specific heat measurements are a reliable indication of the presence of bulk superconductivity when combined with resistivity and susceptibility measurements due to the change in bulk thermodynamic properties at the superconducting transition.

Original languageAmerican English
Pages (from-to)4511-4514
Number of pages4
JournalChemistry of Materials
Issue number13
StatePublished - Jul 14 2015

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering
  • Materials Chemistry

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