What controls the superconducting dome of electron-doped FeSe?

Posted by klaurent Cornell

Kavli Affiliate: Darrell Schlom | Summary:Superconducting domes are conspicuous features of the phase diagrams of most unconventional and high-temperature superconductors. The superconducting transition temperature ($T_c$) of FeSe can be dramatically enhanced with electron doping, but unlike all other high-temperature and unconventional superconductors, its full phase diagram and superconducting dome have yet to be fully explored. […]


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Defect-engineered scaling of lead-free ferroelectrics with ultralow-voltage switching

Posted by klaurent Cornell

Kavli Affiliate: David Muller | Summary:Scaling ferroelectrics to nanometer thicknesses remains a central challenge for low-power, nonvolatile electronics, as leakage currents increasingly dominate with reduced dimensions. Alkali-based, lead-free ferroelectrics offer an environmentally sustainable alternative to lead-based systems, yet their scaling is severely limited by leakage arising from volatile alkali constituents. Here, we show that this […]


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Magneto-Optical Detection of Anisotropic Spin Currents in Altermagnetic RuO2

Posted by klaurent Cornell

Kavli Affiliate: Farhan Rana | Summary:Altermagnets are a recently identified class of collinear antiferromagnets that host large spin-split electronic bands, offering a promising platform for efficient spin-current generation. Among proposed candidates, the metallic oxide RuO2 is predicted to exhibit strong altermagnetic spin splitting; however, whether it sustains robust magnetic order beyond the ultrathin thickness limit […]


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Examining the Challenges of Intellectual Property in AI-Generated Productions

Posted by klaurent Delft

Kavli Affiliate: Mazhar Ali | Summary: With the advancement of artificial intelligence systems capable of autonomously generating artistic, literary, musical works, and even inventions without direct human intervention, the intellectual property (IP) regime faces unprecedented questions and challenges. The most critical issue concerns the ownership of moral and economic rights in the absence of a […]


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Finite Temperature Stacking Fault Stability in Random and Locally Ordered CoCrNi beyond the Harmonic Approximation

Posted by klaurent Caltech

Kavli Affiliate: Wei Gao| Summary:Previous density functional theory (DFT) calculations for random solid solution (RSS) CoCrNi predict negative intrinsic stacking-fault energy (ISFE) at 0 K, contrary to experimental observations of finite stacking-fault widths. Two explanations have been proposed: finite-temperature stabilization of the RSS state, suggested by harmonic approximations showing increasing ISFE with temperature, and local […]


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DisagFusion: Asynchronous Pipeline Parallelism and Elastic Scheduling for Disaggregated Diffusion Serving

Posted by klaurent Caltech

Kavli Affiliate: Wei Gao| Summary:Diffusion-based generation is increasingly powering production content pipelines; however, deploying these models at scale remains a significant challenge. Model weights frequently exceed the memory capacity of commodity GPUs, while the encoder, diffusion transformer (DiT), and decoder stages exhibit highly imbalanced computational and memory footprints. A natural remedy is disaggregated serving-running stages […]


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Non-local low energy neutral excitations in a strongly disordered triangular Mott magnet Cr$_3$Se$_2$Br$_5$

Posted by klaurent Berkeley

Kavli Affiliate: James Analytis| Summary:Understanding if low-energy excitations can remain itinerant in the presence of strong disorder remains a central challenge in frustrated quantum magnets, where disorder is generally expected to localize excitations through Anderson-like mechanisms. Here we report the emergence of charge-neutral itinerant excitations in a van der Waals compound Cr$_3$Se$_2$Br$_5$, a strongly disordered […]


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Nonlinear Wave Propagation in 1D Polycatenated Ring Chains

Posted by klaurent Caltech

Kavli Affiliate: Chiara Daraio | Summary:We study the nonlinear wave dynamics of one-dimensional chains of polycatenated rings. These interlocked structures support amplitude-dependent nonlinear wave propagation driven by tensile activation and internal structural flexibility, unlike traditional granular crystals. Through dynamic impact experiments, finite-element modeling, and discrete-particle simulations of vertical chains pretensioned by gravity, we observe and […]


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Unlocking Proactivity in Task-Oriented Dialogue

Posted by klaurent Caltech

Kavli Affiliate: Wei Gao| Summary:Proactive task-oriented dialogue (TOD), such as outbound sales, demands a persuasive agent that actively probes the user’s concerns and steers the conversation toward acceptance within a bounded number of turns. Yet post-trained LLMs are inherently conservative, and reward-shaping RL (e.g., GRPO) struggles since it only re-weights what an already passive policy […]


Continue.. Unlocking Proactivity in Task-Oriented Dialogue

Unlocking Proactivity in Task-Oriented Dialogue

Posted by klaurent Caltech

Kavli Affiliate: Wei Gao| Summary:Proactive task-oriented dialogue (TOD), such as outbound sales, demands a persuasive agent that actively probes the user’s concerns and steers the conversation toward acceptance within a bounded number of turns. Yet post-trained LLMs are inherently conservative, and reward-shaping RL (e.g., GRPO) struggles since it only re-weights what an already passive policy […]


Continue.. Unlocking Proactivity in Task-Oriented Dialogue