Angle-resolved photoemission studies of quantum materials

JA Sobota, Y He, ZX Shen - Reviews of Modern Physics, 2021 - APS
The physics of quantum materials is dictated by many-body interactions and mathematical
concepts such as symmetry and topology that have transformed our understanding of matter …

High-Resolution Photoemission on Reveals Correlation-Enhanced Effective Spin-Orbit Coupling and Dominantly Local Self-Energies

A Tamai, M Zingl, E Rozbicki, E Cappelli, S Riccò… - Physical Review X, 2019 - APS
We explore the interplay of electron-electron correlations and spin-orbit coupling in the
model Fermi liquid Sr 2 RuO 4 using laser-based angle-resolved photoemission …

Knight Shift and Leading Superconducting Instability from Spin Fluctuations in

AT Rømer, DD Scherer, IM Eremin, PJ Hirschfeld… - Physical review …, 2019 - APS
Recent nuclear magnetic resonance studies [A. Pustogow et al., Nature 574, 72 (2019)]
have challenged the prevalent chiral triplet pairing scenario proposed for Sr 2 RuO 4. To …

Designing light-element materials with large effective spin-orbit coupling

J Li, Q Yao, L Wu, Z Hu, B Gao, X Wan, Q Liu - Nature Communications, 2022 - nature.com
Abstract Spin-orbit coupling (SOC), which is the core of many condensed-matter
phenomena such as nontrivial band gap and magnetocrystalline anisotropy, is generally …

Momentum-resolved superconducting energy gaps of Sr2RuO4 from quasiparticle interference imaging

R Sharma, SD Edkins, Z Wang… - Proceedings of the …, 2020 - National Acad Sciences
Sr2RuO4 has long been the focus of intense research interest because of conjectures that it
is a correlated topological superconductor. It is the momentum space (k-space) structure of …

Fate of Quasiparticles at High Temperature in the Correlated Metal

A Hunter, S Beck, E Cappelli, F Margot, M Straub… - Physical Review Letters, 2023 - APS
We study the temperature evolution of quasiparticles in the correlated metal Sr 2 RuO 4. Our
angle resolved photoemission data show that quasiparticles persist up to temperatures …

Strongly Correlated Materials from a Numerical Renormalization Group Perspective: How the Fermi-Liquid State of Emerges

FB Kugler, M Zingl, HUR Strand, SSB Lee, J von Delft… - Physical Review Letters, 2020 - APS
The crossover from fluctuating atomic constituents to a collective state as one lowers
temperature or energy is at the heart of the dynamical mean-field theory description of the …

Reduction of the Spin Susceptibility in the Superconducting State of Observed by Polarized Neutron Scattering

AN Petsch, M Zhu, M Enderle, ZQ Mao, Y Maeno… - Physical review …, 2020 - APS
Recent observations [A. Pustogow, Nature (London) 574, 72 (2019). NATUAS 0028-0836
10.1038/s41586-019-1596-2] of a drop of the O 17 nuclear magnetic resonance (NMR) …

In situ strain tuning of the metal-insulator-transition of Ca2RuO4 in angle-resolved photoemission experiments

S Ricco, M Kim, A Tamai, S McKeown Walker… - Nature …, 2018 - nature.com
Pressure plays a key role in the study of quantum materials. Its application in angle resolved
photoemission (ARPES) studies, however, has so far been limited. Here, we report the …

Relativistic self-consistent : Exact two-component formalism with one-electron approximation for solids

CN Yeh, A Shee, Q Sun, E Gull, D Zgid - Physical Review B, 2022 - APS
We present a formulation of relativistic self-consistent GW for solids based on the exact two-
component formalism with one-electron approximation (X2C1e) and nonrelativistic Coulomb …