Charge-Stripe Order and Superconductivity in $\mathrm{I}{\mathrm{r}}_{1-\mathrm{x}}\mathrm{P}{\mathrm{t}}_{\mathrm{x}}\mathrm{T}{\mathrm{e}}_2$

Abstract

A combined resistivity and hard x-ray diffraction study of superconductivity and charge ordering in $\mathrm{I}{\mathrm{r}}_{1-\mathrm{x}}\mathrm{P}{\mathrm{t}}_{\mathrm{x}}\mathrm{T}{\mathrm{e}}_2$, as a function of Pt substitution and externally applied hydrostatic pressure, is presented. Experiments are focused on samples near the critical composition $x_c\sim 0.045$ where competition and switching between charge order and superconductivity is established. We show that charge order as a function of pressure in $\mathrm{I}{\mathrm{r}}_{0.95}\mathrm{P}{\mathrm{t}}_{0.05}\mathrm{T}{\mathrm{e}}_2$ is preempted - and hence triggered - by a structural transition. Charge ordering appears uniaxially along the short crystallographic (1,0,1) domain axis with a $(\frac{1}{5},0,\frac{1}{5})$ modulation. Based on these results we draw a charge-order phase diagram and discuss the relation between stripe ordering and superconductivity.

8 pages, 4 figures: Accepted in Scientific Reports

References in corpus (12)

• Novel Jeff = 1/2 Mott State Induced by Relativistic Spin-Orbit Coupling in Sr2IrO4
• Direct observation of competition between superconductivity and charge density wave order in YBa2Cu3Oy
• Two-Dimensional Superconducting Fluctuations in Stripe-Ordered La(1.875)Ba(0.125)CuO(4)
• X-ray diffraction observation of charge density wave order at zero magnetic field in ortho-II YBa${}_2$Cu${}_3$O${}_{6.54}$
• Tuning the Charge Density Wave and Superconductivity in CuxTaS2
• Superconductivity Induced by Bond Breaking in the Triangular Lattice of IrTe2
• Direct observation of lattice symmetry breaking at the hidden-order transition in URu2Si2
• Hierarchical stripe phases in IrTe2 driven by competition between Ir dimerization and Te bonding
• Dimerization-Induced Fermi-Surface Reconstruction in IrTe2
• Bond-Order and the Role of Ligand States in Stripe-Modulated IrTe2
• Structural versus electronic distortions of symmetry-broken IrTe${}_2$
• Fermi surface of IrTe2 in the valence-bond state as determined by quantum oscillations

Cited by in corpus (5)

• Pressure-Induced Rotational Symmetry Breaking in URu${}_2$Si${}_2$
• Charge order above room-temperature in a prototypical kagome superconductor La(Ru${}_{1-x}$Fe${}_x$)${}_3$Si${}_2$
• Absence of a bulk charge density wave signature in x-ray measurements of UTe${}_2$
• Evidence of unconventional pairing in the quasi two-dimensional CuIr${}_2$Te${}_4$ superconductor
• Umklapp-driven first-order transition into a charge-density wave phase