Effect of isoelectronic doping on the honeycomb-lattice iridate A 2 IrO 3

  title={Effect of isoelectronic doping on the honeycomb-lattice iridate A 2 IrO 3},
  author={Soham Manni and Sungkyun Choi and Igor I. Mazin and R Coldea and Michaela Altmeyer and Harald O. Jeschke and Roser Valent{\'i} and Philipp Gegenwart},
  journal={Physical Review B},
We have investigated experimentally and theoretically the series (Na$_{1-x}$Li$_{x}$)$_{2}$IrO$_{3}$. Contrary to what has been believed so far, only for $x\leq0.25$ the system forms uniform solid solutions. For larger Li content, as evidenced by powder X-ray diffraction, scanning electron microscopy and density functional theory calculations, the system shows a miscibility gap and a phase separation into an ordered Na$_{3}$LiIr$_2$O$_{6}$ phase with alternating Na$_3$ and LiIr$_2$O$_6$ planes… 

High-pressure versus isoelectronic doping effect on the honeycomb iridate Na 2 IrO 3

We study the effect of isoelectronic doping and external pressure in tuning the ground state of the honeycomb iridate Na$_2$IrO$_3$ by combining optical spectroscopy with synchrotron x-ray

Chemical and hydrostatic-pressure effects on the Kitaev honeycomb material Na2IrO3

The low-temperature magnetic properties of \tcr{polycrystalline} Na$_2$IrO$_3$, a candidate material for the realization of a quantum spin-liquid state, were investigated by means of muon-spin

Pressure-induced structural dimerization in the hyperhoneycomb iridate β−Li2IrO3 at low temperatures

A pressure-induced collapse of magnetic ordering in $\beta$-Li$_2$IrO$_3$ at $P_m\sim1.5- 2$ GPa has previously been interpreted as evidence for possible emergence of spin liquid states in this

Competition between spin-orbit coupling, magnetism, and dimerization in the honeycomb iridates: α -Li 2 IrO 3 under pressure

Single-crystal x-ray diffraction studies with synchrotron radiation on the honeycomb iridate $\alpha$-Li$_{2}$IrO$_{3}$ reveal a pressure-induced structural phase transition with symmetry lowering

Spin-orbital excitons and their potential condensation in pentavalent iridates

We investigate magnetic excitations in iridium insulators with pentavalent Ir$^{5+}$ ($5d^4$) ions with strong spin-orbit coupling. We obtain a microscopic model based on the local Ir$^{5+}$

Synthesis and investigation of frustrated Honeycomb lattice iridates and rhodates

Iridates have attracted considerable interest in the last few years due to their potential to host novel electronic and magnetic phases mediated by the combination of strong spin orbit coupling and

Cu2IrO3: A New Magnetically Frustrated Honeycomb Iridate.

The weak short-range magnetism combined with the nearly ideal honeycomb structure places Cu2IrO3 closer to a Kitaev spin liquid than its predecessors.

Strong tuning of magnetism and electronic structure by spin orientation

To efficiently manipulate magnetism is a key physical issue for modern condensed matter physics, which is also crucial for magnetic functional applications. Most previous relevant studies rely on the

Surface Conductivity of the Honeycomb Spin–Orbit Mott Insulator Na2IrO3

The search for materials with novel and unusual electronic properties is at the heart of condensed matter physics as well as the basis to develop conceptual new technologies. In this context, the




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