Influence of electron do** on the ground state of

X Chen, T Hogan, D Walkup, W Zhou, M Pokharel… - Physical Review B, 2015 - APS
The evolution of the electronic properties of electron-doped (Sr 1− x La x) 2 IrO 4 is
experimentally explored as the do** limit of La is approached. As electrons are …

Neutron scattering study of correlated phase behavior in SrIrO

C Dhital, T Hogan, Z Yamani, C De La Cruz… - Physical Review B …, 2013 - APS
Neutron diffraction measurements exploring the magnetic and structural phase behaviors of
the candidate J eff= 1/2 Mott insulating iridate Sr 2 IrO 4 are presented. Comparisons are …

Crossover of conduction mechanism in Sr2IrO4 epitaxial thin films

C Lu, A Quindeau, H Deniz, D Preziosi… - Applied Physics …, 2014 - pubs.aip.org
High quality epitaxial Sr 2 IrO 4 thin films with various thicknesses (9–300 nm) have been
grown on SrTiO 3 (001) substrates and their electric transport properties have been …

Imaging the evolution of metallic states in a correlated iridate

Y Okada, D Walkup, H Lin, C Dhital, TR Chang… - Nature materials, 2013 - nature.com
Abstract The Ruddlesden–Popper series of iridates (Sr n+ 1Ir n O3 n+ 1) have been the
subject of much recent attention due to the anticipation of emergent phenomena arising from …

Evidence of quantum dimer excitations in

M Moretti Sala, V Schnells, S Boseggia, L Simonelli… - Physical Review B, 2015 - APS
The magnetic excitation spectrum in the bilayer iridate Sr 3 Ir 2 O 7 has been investigated
using high-resolution resonant inelastic x-ray scattering (RIXS) performed at the iridium L 3 …

Weak antiferromagnetism of band in bilayer iridate SrIrO

S Fujiyama, K Ohashi, H Ohsumi, K Sugimoto… - Physical Review B …, 2012 - APS
The antiferromagnetic structure of Sr 3 Ir 2 O 7, the bilayer analog of a spin-orbital Mott
insulator Sr 2 IrO 4, was revealed by resonant magnetic x-ray diffraction. Contrasting …

Tuning the insulating state via electron do** and pressure in the double-layered iridate SrIrO

L Li, PP Kong, TF Qi, CQ **, SJ Yuan, LE DeLong… - Physical Review B …, 2013 - APS
Sr 3 Ir 2 O 7 exhibits a novel J eff= 1 2 insulating state that features a splitting between J eff=
1 2 and 3 2 bands due to spin-orbit interaction. We report a metal-insulator transition in Sr 3 …

Phonon density of states and anharmonicity of

JWL Pang, A Chernatynskiy, BC Larson, WJL Buyers… - Physical Review B, 2014 - APS
Phonon density of states (PDOS) measurements have been performed on polycrystalline
UO 2 at 295 and 1200 K using time-of-flight inelastic neutron scattering to investigate the …

Spectroscopic evidence for negative electronic compressibility in a quasi-three-dimensional spin–orbit correlated metal

J He, T Hogan, TR Mion, H Hafiz, Y He, JD Denlinger… - Nature materials, 2015 - nature.com
Negative compressibility is a sign of thermodynamic instability of open,, or non-equilibrium,
systems. In quantum materials consisting of multiple mutually coupled subsystems, the …

First-order melting of a weak spin-orbit Mott insulator into a correlated metal

T Hogan, Z Yamani, D Walkup, X Chen, R Dally… - Physical review …, 2015 - APS
The electronic phase diagram of the weak spin-orbit Mott insulator (Sr 1-x La x) 3 Ir 2 O 7 is
determined via an exhaustive experimental study. Upon do** electrons via La substitution …