Nonreciprocal transport and optical phenomena in quantum materials

N Nagaosa, Y Yanase - Annual Review of Condensed Matter …, 2024 - annualreviews.org
In noncentrosymmetric materials, the responses (for example, electrical and optical)
generally depend on the direction of the external stimuli, called nonreciprocal phenomena …

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 …

Single thermodynamic transition at 2 K in superconducting UTe2 single crystals

PFS Rosa, A Weiland, SS Fender, BL Scott… - Communications …, 2022 - nature.com
UTe2 is a newly-discovered unconventional superconductor wherein multicomponent
topological superconductivity is anticipated based on the presence of two superconducting …

Detection of a pair density wave state in UTe2

Q Gu, JP Carroll, S Wang, S Ran, C Broyles… - Nature, 2023 - nature.com
Spin-triplet topological superconductors should exhibit many unprecedented electronic
properties, including fractionalized electronic states relevant to quantum information …

Field-induced compensation of magnetic exchange as the possible origin of reentrant superconductivity in UTe2

T Helm, M Kimata, K Sudo, A Miyata, J Stirnat… - Nature …, 2024 - nature.com
The potential spin-triplet heavy-fermion superconductor UTe2 exhibits signatures of multiple
distinct superconducting phases. For field aligned along the b axis, a metamagnetic …

First Observation of the de Haas–van Alphen Effect and Fermi Surfaces in the Unconventional Superconductor UTe2

D Aoki, H Sakai, P Opletal, Y Tokiwa… - Journal of the Physical …, 2022 - journals.jps.jp
We report the first observation of the de Haas–van Alphen (dHvA) effect in the novel spin-
triplet superconductor UTe2 using high quality single crystals with a high residual resistivity …

Field-induced tuning of the pairing state in a superconductor

A Rosuel, C Marcenat, G Knebel, T Klein, A Pourret… - Physical Review X, 2023 - APS
The recently discovered superconductor UTe 2, with a superconducting transition
temperature T c between 1.5 and 2 K, is attracting much attention due to strong suspicion of …

Superconductivity and local inversion-symmetry breaking

MH Fischer, M Sigrist, DF Agterberg… - Annual Review of …, 2023 - annualreviews.org
Inversion and time reversal are essential symmetries for the structure of Cooper pairs in
superconductors. The loss of one or both leads to modifications to this structure and can …

Quasi-2D Fermi surface in the anomalous superconductor UTe2

AG Eaton, TI Weinberger, NJM Popiel, Z Wu… - Nature …, 2024 - nature.com
The heavy fermion paramagnet UTe2 exhibits numerous characteristics of spin-triplet
superconductivity. Efforts to understand the microscopic details of this exotic …

Fate of Time-Reversal Symmetry Breaking in

MO Ajeesh, M Bordelon, C Girod, S Mishra, F Ronning… - Physical Review X, 2023 - APS
Topological superconductivity is a long-sought state of matter in bulk materials, and the odd-
parity superconductor UTe 2 is a prime candidate. The recent observation of a field-trainable …