Experimental signatures of quantum and topological states in frustrated magnetism

J Khatua, B Sana, A Zorko, M Gomilšek, K Sethupathi… - Physics Reports, 2023 - Elsevier
Frustration in magnetic materials arising from competing exchange interactions can prevent
the system from adopting long-range magnetic order and can instead lead to a diverse …

Experimental Insights into Quantum Spin Ice Physics in Dipole–Octupole Pyrochlore Magnets

EM Smith, E Lhotel, S Petit… - Annual Review of …, 2024 - annualreviews.org
We review a key subset of the experimental studies that have recently focused on cubic
pyrochlore magnets whose pseudospin-1 2 degrees of freedom have mixed dipolar and …

Quantum spin ice response to a magnetic field in the dipole-octupole pyrochlore

EM Smith, J Dudemaine, B Placke, R Schäfer… - Physical Review B, 2023 - APS
The pyrochlore magnet Ce 2 Zr 2 O 7 has attracted much attention as a quantum spin ice
candidate whose novelty derives in part from the dipolar-octupolar nature of the Ce 3+ …

study of the dipole-octupole quantum spin ice candidate

J Beare, EM Smith, J Dudemaine, R Schäfer… - Physical Review B, 2023 - APS
The Ce 3+ pseudospin-1/2 degrees of freedom in Ce 2 Zr 2 O 7 possess both dipolar and
octupolar character which enables the possibility of novel quantum spin liquid ground states …

Spectroscopic signatures of fractionalization in octupolar quantum spin ice

F Desrochers, YB Kim - Physical Review Letters, 2024 - APS
Recent investigations on the dipolar-octupolar compounds Ce 2 Zr 2 O 7 and Ce 2 Sn 2 O 7
suggest that they may stabilize so-called π-flux octupolar quantum spin ice (π-O-QSI), a …

Finite-temperature dynamics in 0-flux and -flux quantum spin ice: Self-consistent exclusive boson approach

F Desrochers, YB Kim - Physical Review B, 2024 - APS
Quantum spin ice (QSI) is an emblematic three-dimensional U (1) quantum spin liquid (QSL)
on the pyrochlore lattice that hosts gapless photon-like modes and spinon excitations …

Exploiting polarization dependence in two-dimensional coherent spectroscopy: Examples of and

M Potts, R Moessner, O Benton - Physical Review B, 2024 - APS
Two-dimensional coherent spectroscopy (2DCS) probes the nonlinear optical response of
correlated systems. An interesting application is the study of fractionalized excitations, which …

Distinguishing thermodynamics and spectroscopy for octupolar U (1) spin liquid of Ce pyrochlores

G Chen - Physical Review Research, 2023 - APS
Inspired by the progress on the spin liquid candidates Ce 2 Sn 2 O 7 and Ce 2 Zr 2 O 7
where the Ce ions carry the dipole-octupole doublets, we analyze the distinction between …

Pseudofermion functional renormalization group study of dipolar-octupolar pyrochlore magnets

LE Chern, F Desrochers, YB Kim, C Castelnovo - Physical Review B, 2024 - APS
Motivated by recent experiments on Ce 2 Zr 2 O 7 that reveal a dynamic, liquidlike ground
state, we study the nearest-neighbor XYZ Hamiltonian of dipolar-octupolar pyrochlore …

CrysFieldExplorer: rapid optimization of the crystal field Hamiltonian

Q Ma, X Bai, E Feng, G Zhang… - Journal of Applied …, 2023 - journals.iucr.org
A new approach to the fast optimization of crystal electric field (CEF) parameters to fit
experimental data is presented. This approach is implemented in a lightweight Python …