Quantum phases driven by strong correlations

S Paschen, Q Si - Nature Reviews Physics, 2021 - nature.com
It has long been thought that strongly correlated systems are adiabatically connected to their
non-interacting counterpart. Recent developments have highlighted the fallacy of this …

Heavy fermions and quantum phase transitions

Q Si, F Steglich - Science, 2010 - science.org
Quantum phase transitions arise in many-body systems because of competing interactions
that promote rivaling ground states. Recent years have seen the identification of continuous …

Flat bands, strange metals and the Kondo effect

JG Checkelsky, BA Bernevig, P Coleman, Q Si… - Nature Reviews …, 2024 - nature.com
Flat-band materials such as the kagome metals or moiré superlattices are of intense current
interest. Flat bands can result from the electron motion on numerous (special) lattices and …

Superconductivity in an extreme strange metal

DH Nguyen, A Sidorenko, M Taupin, G Knebel… - Nature …, 2021 - nature.com
Some of the highest-transition-temperature superconductors across various materials
classes exhibit linear-in-temperature 'strange metal'or 'Planckian'electrical resistivities in …

Colloquium: Heavy-electron quantum criticality and single-particle spectroscopy

S Kirchner, S Paschen, Q Chen, S Wirth, D Feng… - Reviews of Modern …, 2020 - APS
Angle-resolved photoemission spectroscopy (ARPES) and scanning tunneling microscopy
(STM) have become indispensable tools in the study of correlated quantum materials. Both …

Direct observation of how the heavy-fermion state develops in

QY Chen, DF Xu, XH Niu, J Jiang, R Peng, HC Xu… - Physical Review B, 2017 - APS
Heavy-fermion systems share some of the strange metal phenomenology seen in other
unconventional superconductors, providing a unique opportunity to set strange metals in a …

Exploring heavy fermions from macroscopic to microscopic length scales

S Wirth, F Steglich - Nature Reviews Materials, 2016 - nature.com
Strongly correlated systems present fundamental challenges, especially in materials in
which electronic correlations cause a strong increase of the effective mass of the charge …

Quantum-critical phase from frustrated magnetism in a strongly correlated metal

H Zhao, J Zhang, M Lyu, S Bachus, Y Tokiwa… - Nature Physics, 2019 - nature.com
Strange-metal phenomena often develop at the border of antiferromagnetic order in strongly
correlated metals. Previous work established that they can originate from the fluctuations …

Singular charge fluctuations at a magnetic quantum critical point

L Prochaska, X Li, DC MacFarland, AM Andrews… - Science, 2020 - science.org
Strange metal behavior is ubiquitous in correlated materials, ranging from cuprate
superconductors to bilayer graphene, and may arise from physics beyond the quantum …

Chiral Kondo lattice in doped MoTe2/WSe2 bilayers

D Guerci, J Wang, J Zang, J Cano, JH Pixley… - Science …, 2023 - science.org
We theoretically study the interplay between magnetism and a heavy Fermi liquid in the AB-
stacked transition metal dichalcogenide bilayer system, MoTe2/WSe2, in the regime in …