Correlated insulating states in twisted double bilayer graphene on CrOCl enhanced by interfacial charge transfer effect
Ning Ma, Zekang Zhou, Chiara Cocchi, Maurice Bal, Maarten van Delft, Kenji Watanabe, Takashi Taniguchi, Steffen Wiedmann, Jian-Hao Chen, and Mitali Banerjee
Phys. Rev. B 114, L291101 (2026) - Published 4 November, 2026
Here, the authors investigate electrical transport in twisted double bilayer graphene (TDBG) on the antiferromagnetic material CrOCl (COC). At ultrahigh magnetic fields, an enhanced correlated insulating state is observed at half-filling of TDBG, which is attributed to the charge transfer effect between TDBG and COC. The authors further characterize the behavior of the correlated state by systematic temperature- and magnetic-field dependent measurements. Their results highlight the interfacial charge-related effect as a promising approach to manipulating the correlated states in moiré systems.
Electronic many-body effects in aqueous redox potentials of transition metal ions
Ryosuke Jinnouchi, Merzuk Kaltak, Ferenc Karsai, and Georg Kresse
Phys. Rev. B 114, L291102 (2026) - Published 9 November, 2026
Conductivity of a non-Galilean-invariant Fermi liquid: Exact solution of the kinetic equation
Tatia Kiliptari, Vladimir I. Yudson, and Dmitrii L. Maslov
Phys. Rev. B 114, L291103 (2026) - Published 12 November, 2026
In a Fermi liquid, the quasiparticle scattering rate scales as , whereas the low-temperature correction to the residual resistivity can scale as , seemingly implying a strongly suppressed current-relaxation rate. The authors resolve this paradox here by solving the kinetic equation exactly for a disordered, non-Galilean-invariant Fermi liquid. They show that electron–electron collisions enter the conductivity through the quasiparticle scattering time itself, which controls the crossover between collisionless and hydrodynamic transport. The extra factor arises because momentum conservation makes the change in the total velocity of two colliding electrons vanish on the Fermi surface, so current relaxation comes only from thermally excited states away from it. The electron–electron contribution to the dc conductivity nevertheless remains parametrically small throughout the Fermi-liquid regime. By extrapolating the result toward a quantum critical point, the authors further show that the renormalized quasiparticle scattering rate saturates the Planckian bound.
Pressure-tuned competing electronic states in layered tellurides
Mahmoud Abdel-Hafiez, Govindaraj Lingannan, D. A. Chareev, A. N. Vasiliev, Anas Abutaha, Chia Nung Kuo, Chin Shan Lue, Kadir Can Dogan, Mehmet Yagmurcukardes, Mehmet Egilmez, Hasan Sahin, and Sami El-Khatib
Phys. Rev. B 114, L291104 (2026) - Published 12 November, 2026
Probing tensor monopoles and gerbe invariants in three-dimensional topological matter
Wojciech J. Jankowski, Robert-Jan Slager, and Giandomenico Palumbo
Phys. Rev. B 114, L291105 (2026) - Published 12 November, 2026



