%0 Journal Article
%T Superconductivity Induced by Bond Breaking in the Triangular Lattice of IrTe2
%A Sunseng Pyon
%A Kazutaka Kudo
%A Minoru Nohara
%J Physics
%D 2012
%I arXiv
%R 10.1143/JPSJ.81.053701
%X IrTe2, a layered compound with a triangular iridium lattice, exhibits a structural phase transition at approximately 250 K. This transition is characterized by the formation of Ir-Ir bonds along the b-axis. We found that the breaking of Ir-Ir bonds that occurs in Ir1-xPtxTe2 results in the appearance of a structural critical point in the T = 0 limit at xc = 0.035. Although both IrTe2 and PtTe2 are paramagnetic metals, superconductivity at Tc = 3.1 K is induced by the bond breaking in a narrow range of x > xc in Ir1-xPtxTe2. This result indicates that structural fluctuations can be involved in the emergence of superconductivity.
%U http://arxiv.org/abs/1204.1421v1