Breakdown of semiclassical description of thermoelectricity in near-magic angle twisted bilayer graphene

B Ghawri, PS Mahapatra, M Garg, S Mandal… - Nature …, 2022 - nature.com
The planar assembly of twisted bilayer graphene (tBLG) hosts multitude of interaction-driven
phases when the relative rotation is close to the magic angle (θ m= 1.1∘). This includes …

Anomalous enhancement of the Nernst effect at the crossover between a Fermi liquid and a strange metal

Y Yang, Q Tao, Y Fang, G Tang, C Yao, X Yan… - Nature Physics, 2023 - nature.com
A strange-metal state appears in many strongly correlated materials, so understanding its
nature is a crucial problem in condensed matter physics. This knowledge could provide …

-linear resistivity, optical conductivity, and Planckian transport for a holographic local quantum critical metal in a periodic potential

F Balm, N Chagnet, S Arend, J Aretz, K Grosvenor… - Physical Review B, 2023 - APS
High-T c cuprate strange metals are characterized by a DC resistivity that scales linearly with
T from the onset of superconductivity to the crystal melting temperature, characterized by a …

Multiband transport in

F Pawula, A Fakih, R Daou, S Hébert, N Mordvinova… - Physical Review B, 2024 - APS
We present electrical and thermal transport measurements in single crystals of the metallic
oxide RuO 2. The resistivity and Seebeck coefficient measured up to 970 K confirm the …

Planckian metal at a doping-induced quantum critical point

PT Dumitrescu, N Wentzell, A Georges, O Parcollet - Physical Review B, 2022 - APS
We numerically study a model of interacting spin-1/2 electrons with random exchange
coupling on a fully connected lattice. This model hosts a quantum critical point separating …

Effects of strong electronic interactions on the thermopower properties of the repulsive Hubbard model

WCF Silva, MV Araujo, S Roy, A Samanta, NC Costa… - Physical Review B, 2023 - APS
We obtain the Seebeck coefficient or thermopower S, which determines the conversion
efficiency from thermal to electrical energy, for the two-dimensional Hubbard model on …

Critical metallic phase in the overdoped random t-J model

M Christos, DG Joshi, S Sachdev… - Proceedings of the …, 2022 - National Acad Sciences
We investigate a model of electrons with random and all-to-all hopping and spin exchange
interactions, with a constraint of no double occupancy. The model is studied in a Sachdev …

Anisotropic Seebeck coefficient of in the incoherent regime

R Daou, S Hébert, G Grissonnanche, E Hassinger… - Physical Review B, 2023 - APS
Intuitive entropic interpretations of the thermoelectric effect in metals predict an isotropic
Seebeck coefficient at high temperatures in the incoherent regime even in anisotropic …

Magnetic Field as an Important Tool in Exploring the Strongly Correlated Fermi Systems and Their Particle–Hole and Time-Reversal Asymmetries

VR Shaginyan, AZ Msezane, SA Artamonov - Magnetism, 2023 - mdpi.com
In this review, we consider the impact of magnetic field on the properties of strongly
correlated heavy-fermion compounds such as heavy-fermion metals and frustrated …

Reconciling scaling of the optical conductivity of cuprate superconductors with Planckian resistivity and specific heat

B Michon, C Berthod, CW Rischau, A Ataei… - Nature …, 2023 - nature.com
Materials tuned to a quantum critical point display universal scaling properties as a function
of temperature T and frequency ω. A long-standing puzzle regarding cuprate …