Superconductivity in titanium-based pnictide oxide compounds

Bernd Lorenz, Arnold M. Guloy, Paul C.W. Chu

研究成果: Article同行評審

7 引文 斯高帕斯(Scopus)

摘要

Superconductivity in a novel class of layered materials, Ti-based pnictide oxides, was recently discovered. These compounds have attracted interest since they combine features of copper oxide and iron pnictide superconductors. Here the transition metal (titanium) forms two-dimensional Ti2O layers (anti structure to the CuO2 planes), capped by pnictogen ions (similar to Fe2As2 layers). The pnictide oxide compounds show a spin or charge density wave phase which coexists with superconductivity in some members of the family. Unlike the cuprates, but similar to iron pnictides, the parent compounds of pnictide oxides are metals with specific nesting properties of the Fermi surface which leads to the density wave instability. The nature of the superconductivity, coexisting with the density wave order, and the possible competition or mutual interaction between both states is one of the central questions of recent studies. This short review summarizes the current knowledge from an experimental as well as theoretical point of view and discusses some of the open questions and possible future developments.

原文English
文章編號1430011
期刊International Journal of Modern Physics B
28
發行號19
DOIs
出版狀態Published - 2014 七月 30

All Science Journal Classification (ASJC) codes

  • 統計與非線性物理學
  • 凝聚態物理學

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