Robust pinned magnetisation in A2Ir2O7 iridates, the case of Er2Ir2O7 and Lu2Ir2O7 flux-grown single crystals

D Staško, F Hájek, K Vlášková, J Kaštil, M Henriques… - Scientific Reports, 2024 - nature.com
In addition to complex spin-ice and spin-liquid states of rare-earth pyrochlore oxides,
A2Ir2O7 iridates have been recently proposed to host a cooling-field-controllable …

Non-Fermi-liquid signatures of quadratic band touching and phonon anomalies in metallic

M Rosalin, P Telang, S Singh, DVS Muthu, AK Sood - Physical Review B, 2023 - APS
A single Fermi node in Pr 2 Ir 2 O 7 protected by time reversal and inversion symmetry
resulting from an interplay between strong electronic correlations and spin-orbit coupling …

Magnon excitation and spin-phonon coupling in

M Rosalin, P Telang, S Singh, DVS Muthu, AK Sood - Physical Review B, 2024 - APS
We present a comparative study of the temperature-dependent Raman scattering of
pyrochlore iridates A 2 Ir 2 O 7, where A= Gd, Dy, and Er, spanning the temperature range …

Synthesis of Er2Ir2O7 pyrochlore iridate by solid-state-reaction and CsCl flux method

K Vlášková, RH Colman, M Klicpera - Materials Chemistry and Physics, 2021 - Elsevier
The solid-state reaction, hydrothermal synthesis and CsCl flux methods were employed
preparing Er 2 Ir 2 O 7 pyrochlore iridate. A mixture of initial Er 2 O 3 and IrO 2 oxides was …

Spin dynamics and possible topological magnons in the nonstoichiometric pyrochlore iridate studied by RIXS

Q Faure, A Toschi, JR Soh, E Lhotel, B Detlefs… - Physical Review B, 2024 - APS
We report on a resonant inelastic x-ray scattering study on a single crystal of a
nonstoichiometric pyrochlore iridate Tb 2+ x Ir 2− x O 7− y (x≃ 0.25) that magnetically orders …

Anomalous pressure dependence of phonon line widths in metallic pyrochlore iridates (EuBi)IrO: crossover from incoherent to coherent metal

A Thomas, P Telang, D Rout, K Mishra, A Pal… - Pramana, 2023 - Springer
Abstract Pyrochlore iridate (Eu 2 Ir 2 O 7) shows an interesting metallic phase, termed as
incoherent metal, above the metal–insulator transition temperature, with high resistivity and …

Large spontaneous Hall effect in magnetic Weyl semimetallic (111) epitaxial thin films

M Ghosh, PS Anil Kumar - Physical Review B, 2023 - APS
Here, we present magnetotransport properties of Sm 2 Ir 2 O 7 (111) single-crystalline
epitaxial thin films grown with different strengths of compressive strain. A long-range …

Anomalous lattice contraction and emergent electronic phases in Bi-doped

P Telang, K Mishra, G Prando, AK Sood, S Singh - Physical Review B, 2019 - APS
We study the pyrochlore series (Eu 1− x Bi x) 2 Ir 2 O 7 for 0≤ x≤ 1. We show that for small
x, the lattice undergoes an anomalous contraction but the time reversal symmetry breaking …

Iso-structural phase transition in pyrochlore iridates (SmBix)2Ir2O7 (x = 0, 0.02, and 0.10): high-pressure Raman and x-ray diffraction studies

M Rosalin, KA Irshad, B Joseph, P Telang… - Journal of Physics …, 2024 - iopscience.iop.org
The pyrochlore iridates, A 2 Ir 2 O 7, show a wide variety of structural, electronic, and
magnetic properties controlled by the interplay of different exchange interactions, which can …

Asymmetric Magnetization Reversal Behaviors Driven by Exchange Coupling between All-in-All-out Magnetic Domains and Domain Walls in a Eu2Ir2O7 Single …

L Xu, G Gong, C Zhao, X Song, S Yuan… - The Journal of Physical …, 2020 - ACS Publications
In pyrochlore iridates, nontrivial magnetic domain walls (DWs) carrying ferromagnetic (FM)
moments were recently uncovered despite their bulk all-in-all-out (AIAO) antiferromagnetic …