Kavli Affiliate: Kinfai Mak | First 5 Authors: Yichi Zhang, Yichi Zhang, , , | Summary: Tunable Kondo lattice and heavy fermion physics have been recently reported in moiré materials, but most of the studies have focused on the electrical and magnetic properties. Quantitative thermoelectric measurements, which can reveal entropic information of the heavy fermions, […]
Kavli Affiliate: Brad Ramshaw| First 5 Authors: B. J. Ramshaw, B. J. Ramshaw, , , | Summary:We summarize key experimental studies of the low energy properties of overdoped cuprate high temperature superconductors and conclude that a theoretical understanding of the "essential physics" is achievable in terms of a conventional Fermi-liquid treatment of the normal state, […]
Kavli Affiliate: Brad Ramshaw | Summary:We summarize key experimental studies of the low energy properties of overdoped cuprate high temperature superconductors and conclude that a theoretical understanding of the “essential physics” is achievable in terms of a conventional Fermi-liquid treatment of the normal state, and a BCS mean-field treatment of the ($d$-wave) superconducting state. For […]
Kavli Affiliate: Brad Ramshaw | Summary:We summarize key experimental studies of the low energy properties of overdoped cuprate high temperature superconductors and conclude that a theoretical understanding of the “essential physics" is achievable in terms of a conventional Fermi-liquid treatment of the normal state, and a BCS mean-field treatment of the (d-wave) superconducting state. For […]
Kavli Affiliate: Brad Ramshaw | Summary:Cuprates are the paradigmatic `unconventional’ superconductors: their critical temperature is much higher than can be expected from phonon-mediated pairing; the superconducting gap has $d$-wave symmetry; and the normal-metallic state appears to be far from a conventional Fermi liquid. These and numerous other experimental facts have led to a consensus that […]
Kavli Affiliate: Kyle Shen | First 5 Authors: Wei Shen, Wei Shen, , , | Summary: We study bilevel optimization problems where the lower-level problems are strongly convex and have coupled linear constraints. To overcome the potential non-smoothness of the hyper-objective and the computational challenges associated with the Hessian matrix, we utilize penalty and augmented […]
Kavli Affiliate: David Muller | Summary:The ability to tune electronic structure in twisted stacks of two-dimensional (2D) materials has motivated the exploration of similar moiré physics with twisted oxide membranes. Due to the intrinsic three-dimensional nature of bonding in many oxides, achieving atomic-level coupling is significantly more challenging than with van der Waals materials. Although […]
Kavli Affiliate: Debanjan Chowdhury | Summary:Skyrmions are emergent many-body excitations that lie at the heart of both multi-component quantum Hall-like systems and deconfined quantum criticality. In a companion article (X. Wang et al., arXiv:2507.22971), we studied a microscopic time-reversal symmetric model of tunable interacting Chern bands using numerically exact determinant quantum Monte Carlo calculations, and […]
Kavli Affiliate: Kinfai Mak | First 5 Authors: Zijian Feng, Zijian Feng, , , | Summary: Pruning is a widely used technique to reduce the size and inference cost of large language models (LLMs), but it often causes performance degradation. To mitigate this, existing restoration methods typically employ parameter-efficient fine-tuning (PEFT), such as LoRA, to […]
Kavli Affiliate: Daniel C. Ralph | First 5 Authors: Xiaoxi Huang, Xiaoxi Huang, , , | Summary: To achieve efficient anti-damping switching of nanoscale magnetic memories with perpendicular magnetic anisotropy using spin-orbit torque requires that the anti-damping spin-orbit torque have a strong out-of-plane component. The spin anomalous Hall effect and the planar Hall effect spin […]