Interplay between structural, magnetic, and electronic states in the pyrochlore iridate

M Das, S Bhowal, J Sannigrahi, A Bandyopadhyay… - Physical Review B, 2022 - APS
We address the concomitant metal-insulator transition (MIT) and antiferromagnetic ordering
in the novel pyrochlore iridate Eu 2 Ir 2 O 7 by combining x-ray absorption spectroscopy, x …

Conductive properties of heavy-rare-earth A2Ir2O7 iridates synthesized by the CsCl-flux method

D Staško, K Vlášková, P Proschek… - Journal of Physics and …, 2023 - Elsevier
Abstract The A 2 Ir 2 O 7 pyrochlores with A= rare-earth element have been the subject of
intense scientific interest for their complex magnetic and conductive properties. The previous …

Spin chirality induced large topological Hall effect in magnetic Weyl semimetallic (111) thin films

M Ghosh, D Samal, PS Anil Kumar - Physical Review B, 2022 - APS
Antiferromagnetic (AFM) pyrochlore iridates are a fertile ground to hunt for a Weyl
semimetallic state characterized by a linear crossing of two nondegenerate bands near the …

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 …

Entropic topography associated with field-induced quantum criticality in a magnetic insulator DyVO4

D Ranaut, K Mukherjee - Scientific Reports, 2022 - nature.com
Exploration of low temperature phase transitions associated with quantum critical point is
one of the most mystifying fields of research which is under intensive focus in recent times. In …

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 …

Evolution of electronic and magnetic properties in a series of iridate double perovskites

A Bandyopadhyay, I Carlomagno, L Simonelli… - Physical Review B, 2019 - APS
Spin-orbit coupling (SOC) plays a crucial role in magnetic and electronic properties of 5 d
iridates. In this paper we have experimentally investigated the structural and physical …

First-principles studies of spin-orbital physics in pyrochlore oxides

H Shinaoka, Y Motome, T Miyake… - Journal of Physics …, 2019 - new.iopscience.iop.org
The pyrochlore oxides O 7 exhibit a complex interplay between geometrical frustration,
electronic correlations, and spin–orbit coupling (SOC), due to the lattice structure and active …

Strain and modified spin configuration driven spontaneous and topological-like Hall effect in Weyl semimetallic (111) epitaxial thin films

A Kar, M Ghosh, S Elizabeth, PS Anil Kumar - Physical Review B, 2024 - APS
All-In-All-Out/All-Out-All-In (AIAO/AOAI) ordering in pyrochlore iridates provides an intriguing
platform for investigating exotic phenomena such as the topological Hall effect, Berry …

Tuning the semimetallic charge transport in the Weyl semimetal candidate Eu2Ir2O7 (111) epitaxial thin film with an all-in-all-out spin structure

M Ghosh, SG Bhat, A Pal… - Journal of Physics …, 2022 - iopscience.iop.org
We report the stoichiometric epitaxial growth of the Eu 2 Ir 2 O 7 (111) thin film on YSZ
substrate by a two-step solid phase epitaxy (SPE) method. An optimized post-annealing …