title: Charge-orbital density wave and superconductivity in the strong spin-orbit coupled IrTe2:Pd.
abstract: Using transmission electron microscopy, the anomalies in resistivity and magnetic susceptibility at ~262 K in IrTe2 are found to accompany the superlattice peaks with q[over q=(1/5,0,-1/5). The wave vector is consistent with our theoretical calculation for the Fermi surface nesting vector, indicating that the ~262 K transition is of the charge-orbital density wave (DW) type. We also discovered that both Pd intercalation and substitution induce bulk superconductivity with T(c) up to ~3 K, which competes with DW in a quantum critical pointlike manner.
authors.affiliation: Laboratory for Pohang Emergent Materials, Pohang University of Science and Technology, Pohang, Korea.
authors.forename: J J
authors.initials: JJ
authors.lastname: Yang
authors.forename: Y J
authors.initials: YJ
authors.lastname: Choi
authors.forename: Y S
authors.initials: YS
authors.lastname: Oh
authors.forename: A
authors.initials: A
authors.lastname: Hogan
authors.forename: Y
authors.initials: Y
authors.lastname: Horibe
authors.forename: K
authors.initials: K
authors.lastname: Kim
authors.forename: B I
authors.initials: BI
authors.lastname: Min
authors.forename: S-W
authors.initials: SW
authors.lastname: Cheong