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Suppression of Structural Phase Transition in IrTe2by Isovalent Rh Doping

“…MðT Þ exhibits a hysteretic jump at the first-order structural/ electronic phase transition from which we determined the transition temperature T s , as reported previously. [1][2][3][4] T s decreases with increasing x and disappears at x > 0:10. Superconductivity emerges simultaneously.…”

“…In each layer, Ir atoms are connected to form a regular triangular lattice. This compound undergoes a first-order structural phase transition at approximately 250 K. 4) Matsumoto et al proposed the average structure below 250 K to be a monoclinic one with the space group C2=m (No. 12), in which the Ir-Ir bond length along the b-axis is uniformly reduced 4) so that the regular triangular lattice is deformed into an isosceles triangular one.…”

“…This compound undergoes a first-order structural phase transition at approximately 250 K. 4) Matsumoto et al proposed the average structure below 250 K to be a monoclinic one with the space group C2=m (No. 12), in which the Ir-Ir bond length along the b-axis is uniformly reduced 4) so that the regular triangular lattice is deformed into an isosceles triangular one. Recently, Yang et al 2) revealed through transmission electron microscopy (TEM) measurements that the low-temperature structure is modulated with a wave vector of q ¼ ð1=5; 0; À1=5Þ.…”

Optical evidence for bonding-antibonding splitting inIrTe2

“…IrTe 2 has received significant attention due to its intriguing structural transition at 280 K to a high resistance phase characterized by a wave vector q=(1/5, 0, 1/5) [1][2][3] . This transition has been hard to classify.…”

Electronic Structure Reconstruction by Orbital Symmetry Breaking in IrTe2

“…7) IrTe 2 exhibits a structural phase transition at $270 K from the trigonal (P 3m1) to the monoclinic (C2=m) structure accompanied by anomalies of electrical resistivity and magnetic susceptibility. 8) When the lattice distortion is suppressed by chemical substitution of Pt or Pd for Ir or intercalation of Pd, IrTe 2 becomes superconductors. 6,7) An electron diffraction study by Yang et al 7) observed the superlattice peaks with wave vector of q ¼ ð1=5; 0; À1=5Þ below the structural transition temperature.…”