Activity Feed

  1. MAE model idea I

    post

    Core Idea: Train a GNN from scratch to predict MAE using CHGNet-derived features: Node features: CHGNet latent embeddings (structural context) + CHGNet magmom predictions (explicit magnetic state)

    3d
  2. RDF and coordination number plots of CuNi crystal after equilibration melt for 10ps at 1800 K

    Image file

    This asset shows two plots for a CuNi crystal after a 10 picosecond melt equilibration at 1800 K. The left plot is the total radial distribution function (RDF) versus distance, with a strong first peak near 2 Å and several smaller peaks up to about 8–9 Å, suggesting some remaining order from the original lattice. The right plot shows the coordination number (CN) as a function of distance, which increases gradually and reaches around 350 by 10 Å. The note indicates that even at about 9 Å away, there is still a signal of another atom, meaning remnants of the supercell lattice persist in the melted state.

    5d
  3. Welcome Home

    post

    I'm excited to share a new page I've been building out this week. You may have already seen it, as it's the first page you be redirected to after sign in.

    5d
  4. This post explores ideas about AI and how it might change human work and purpose. It mentions starting a small philosophy discussion group to talk about big questions like meaning, usefulness, and how technology affects society. The writer references the book Courage to Be Disliked and Adlerian psychology, noting a common claim that happiness comes from being useful to others. They also offer a personal take that this may not be the only source of happiness. The central question asks what could happen if people feel they are no longer useful to each other or cannot be. It’s a thoughtful look at consequences of automation and the search for meaning in a changing world. Keywords: AI, philosophy, Adlerian psychology, Courage to Be Disliked, usefulness, happiness, labor, future.

    post
    7d
  5. Simulating Metallic Glass Formation with Orb-v3

    post

    is a post about running molecular dynamics simulations to study how a Cu-Zr alloy forms a metallic glass. The author uses a 64% Cu and 36% Zr composition, an (10,10,10) supercell, and the orb-v3-direct-20-omat calculator to push speed and scale. The workflow includes equilibrating a melted alloy at high temperature, then rapid quenching from 2000 K to 300 K at various rates to compare glass formation versus crystallization. The write-up explains key concepts like what glass is in atomic terms, the difference between crystalline order and amorphous structure, and how RDF and coordination numbers help analyze results. It also notes the challenges of achieving crystallization in MD due to time scales and suggests exploring different cooling rates and compositions in future runs. The post includes example data and 3D visualization references to support the findings.

    8d
  6. Choosing the Right Orb-v3 Model for Your Research

    post

    explains how to pick from eight Orb-v3 models that balance accuracy, speed, and memory for atomistic simulations. The post breaks down model names (orb-v3-X-Y-Z), where X is how forces are computed, Y is neighbor limits, and Z is the training dataset (omat or mpa). It compares conservative vs direct force calculations, unlimited vs limited neighbors, and AIMD-based -omat versus MPTraj/Alexandria-based -mpa models. Readers gain practical guidance for phonon calculations, geometry optimization, and molecular dynamics, including which models excel at energy conservation, speed, or large-scale simulations. The piece also covers workflow tips, performance at scale, and licensing (Apache 2.0). Use this guide to choose the right Orb-v3 model for your system size and research goals.

    8d
  7. Figure 1 from "Orb-v3" paper

    Image file

    The Pareto frontier for a range of universal Machine Learning Interatomic Potentials. The 𝐾𝑆𝑅𝑀𝐸 metric assesses a model’s ability to predict thermal conductivity via the Wigner formulation of heat transport and requires accurate geometry optimizations as well as second and third order derivatives of the PES (computed via finite differences). The y-axis measure a model’s forward passes per second on a dense periodic system of 1000 atoms, disregarding graph construction time, measured on a NVIDIA H200. Point sizes represent max GPU memory usage. Y-axis jitter (+/- 5 steps/second) has been applied to allow visualization of overlapping points. Model families include a range of specific models with broadly the same architecture, but may be different sizes or trained on different datasets.

    9d
  8. Meso-scale All-atom Simulations

    post

    Meso-scale all-atom simulations with Orb-v3 open a new frontier in materials science and chemistry. This post discusses using ASE for molecular dynamics on GPUs (A100, H100, H200) via Modal, enabling larger, more affordable simulations than traditional DFT. It highlights metallic glass formation, crystallization, annealing, and emergent phenomena that arise from thousands of atoms. The focus is on a breakthrough in non-conservative architectures that balance memory use and speed, making complex systems feasible to study.

    9d
  9. Orb-v3 paper

    PDF file

    The authors introduce Orb-v3, the next generation of the Orb family of universal interatomic potentials. Models in this family expand the performance-speed-memory Pareto frontier, offering near SoTA performance across a range of evaluations with a ≥ 10× reduction in latency and ≥ 8× reduction in memory. Their experiments systematically traverse this frontier, charting the trade-off induced by roto-equivariance, conservatism and graph sparsity. Contrary to recent literature, they find that non-equivariant, non-conservative architectures can accurately model physical properties, including those which require higher-order derivatives of the potential energy surface.

    10d
  10. The Bitter Lesson

    PDF file

    Paper by Rich Sutton

    11d
  11. Building a Physically Comparable Magnetic Hysteresis Simulation Framework

    post

    Overview of the current work and future enhancements for magnetic hysteresis simulations

    13d
  12. MAE predictor failure

    post

    A post about trying to use HamGNN with TB2J to forecast magnetocrystalline anisotropy energy, only to find the pre-trained model lacks the needed physics. The main gap is the absence of spin-polarization in H0, making the model better suited for SOC in non-magnetic materials, not for magnetic predictions. Potential outputs still relevant to SOC include band structure corrections, topological invariants, spin textures in k-space, orbital angular momentum, spin Hall conductivity, g-factors, effective masses, and optical properties. The use case focuses on non-magnetic materials and topological insulators without magnetism. Next steps involve exploring new Hamiltonian models like DeepH-pack and MACE-H, noting they lack pre-trained models. The plan is to gather consistent data, ensure SOC and spin-polarization, and align data sources from the same DFT software. Links: https://github.com/mzjb/DeepH-pack, https://github.com/maurergroup/MACE-H.

    17d
  13. Mn8Al8C phase diagram 4

    .html file

    Phase diagram of Mn8Al8C; e_above_hull: 0.315834 eV/atom; predicted_stable: False

    23d
  14. agent-iteration-2-v02.cif - relaxed

    .cif file

    Cell + Ionic relaxation with Orb v3; 0.03 eV/Å threshold; final energy = -111.2538 eV; energy change = -38.8208 eV; symmetry: P4/m → P1

    23d
  15. agent-iteration-2-v02.cif

    .cif file

    Crystal structure generated by GEPA optimization (iteration 2)

    23d
  16. Mn8Al8C phase diagram 3

    .html file

    Phase diagram of Mn8Al8C; e_above_hull: 1.072304 eV/atom; predicted_stable: False

    23d
  17. agent-iteration-1-v02.cif - relaxed

    .cif file

    Cell + Ionic relaxation with Orb v3; 0.03 eV/Å threshold; final energy = -85.6817 eV; energy change = -99.9416 eV; symmetry: P4/mmm → P1

    23d
  18. agent-iteration-1-v02.cif

    .cif file

    Crystal structure generated by GEPA optimization (iteration 1)

    23d
  19. agent-iteration-12-v01.cif - relaxed

    .cif file

    Cell + Ionic relaxation with Orb v3; 0.03 eV/Å threshold; final energy = -7.2183 eV; energy change = 2.4552 eV; symmetry: P4/mmm → P4/mmm

    24d
  20. agent-iteration-12-v01.cif

    .cif file

    Crystal structure generated by GEPA optimization (iteration 12)

    24d
  21. Fe4CoSiB2 phase diagram 10

    .html file

    Phase diagram of Fe4CoSiB2; e_above_hull: 0.173824 eV/atom; predicted_stable: False

    24d
  22. agent-iteration-11-v01.cif - relaxed

    .cif file

    Cell + Ionic relaxation with Orb v3; 0.03 eV/Å threshold; final energy = -245.7428 eV; energy change = -455.6124 eV; symmetry: I4/mcm → P1

    24d
  23. agent-iteration-11-v01.cif

    .cif file

    Crystal structure generated by GEPA optimization (iteration 11)

    24d
  24. agent-iteration-10-v01.cif - relaxed

    .cif file

    Cell + Ionic relaxation with Orb v3; 0.03 eV/Å threshold; final energy = -24.1489 eV; energy change = -0.9037 eV; symmetry: P4/mmm → P1

    24d
  25. agent-iteration-10-v01.cif

    .cif file

    Crystal structure generated by GEPA optimization (iteration 10)

    24d
  26. Fe2B phase diagram 7

    .html file

    Phase diagram of Fe2B; e_above_hull: 0.000062 eV/atom; predicted_stable: True

    24d
  27. agent-iteration-9-v01.cif - relaxed

    .cif file

    Cell + Ionic relaxation with Orb v3; 0.03 eV/Å threshold; final energy = -98.1390 eV; energy change = -9.9987 eV; symmetry: I4/mcm → I4/mcm

    24d
  28. agent-iteration-9-v01.cif

    .cif file

    Crystal structure generated by GEPA optimization (iteration 9)

    24d
  29. yfinance-btc-usd-musing-wescoff

    dataset

    Dataset BTC-USD downloaded from yfinance: 2020-01-01 to present

    25d
  30. yfinance-btc-usd-vigilant-chatterjee

    dataset

    Dataset BTC-USD downloaded from yfinance: 2020-01-01 to present

    25d
  31. yfinance-btc-usd-epic-elbakyan

    dataset

    Dataset BTC-USD downloaded from yfinance: 2020-01-01 to present

    25d
  32. Revisiting MAE datasets and model building

    post

    Once again we're at a stopping point because of our inability to effectively predict MAE. Our AI discovery agents have discovered materials that have all the properties we can currently predict. This

    26d
  33. Gen Z and the Rise of Social Gambling: Online Casinos as a Digital Barkada Spot

    post
    26d
  34. Notes as I read the LLMatDesign paper

    post

    A clear look at using LLMs for materials discovery. This post summarizes how Victor from Lila Sciences and the author compare their AI workflows, focusing on mutations in crystal structures, machine learning force fields (MLFF), and machine learning property predictors (MLPP). It explains why data limits push researchers toward direct reasoning with AI, the role of modification history and self-reflection, and how prompts influence performance. Key takeaways include constraints in rare-earth-free magnet design, the balance between control and relaxation, and the impact of self-reflection on speeding up convergence to target properties like band gap and formation energy. The notes also touch on challenges with crystal symmetry, CIF generation, and future work in MLIP/MLPP accuracy. A practical read for anyone exploring automated materials discovery and AI-driven design.

    28d
  35. Thinking about if view count should be number of unique users, or if it should be total number of viewport views. Total VPVs overcounts things a lot. Basically one person could just keep refreshing th

    post
    1mo
  36. Finding adjacent crystals in Matra-Genoa's latent space

    post

    This post explores ideas for finding adjacent crystals in Matra-Genoa’s latent space to discover materials with targeted properties. The author describes challenges when mutating crystals, where small input changes can lead to large, different outputs after relaxation. Three approaches are considered: conditioned generation with token hints (fixing some inputs while mutating others), decoding from a modified latent space (using predictors and SHAP to steer latent directions before decoding), and a hybrid approach that combines fixed tokens with latent-space moves. The goal is faster exploration and smarter guidance from an AI research agent and a language model, reducing the cost of property evaluation. The notes also touch on fine-tuning and property-focused training to improve material design workflows. Keywords: adjacent crystals, latent space, Matra-Genoa, crystal generation, materials AI, property optimization.

    1mo
  37. Notes as I read about Matra-Genoa, a new crystal generation model

    post

    Check out the paper here. It's a short read. I recommend checking it out. Although not very technical (just machine learning concepts that have been explored elsewhere), the creativity and simplicity

    1mo
  38. dear 'X" : the Partial, this time's, is back in-game

    post
    1mo
  39. photo-sonic sequencing in tandem with material-Fq. synchronization - magically, its conjurable

    post
    1mo
  40. sorry for all the spam! I'll make the AI scientist make stuff private by default and only publish the really good stuff.

    post
    1mo
  41. AI Scientist: Mn2CrFe4Co4N SG #1 (score 0.740)

    post

    AI-discovered magnetic material: Mn2CrFe4Co4N (performance score: 0.740) | Space group: 1 (resolved from structure) | Key properties: Tc: 612K, Ms: 0.14T, Cost: $13/kg, E_hull: 0.235eV/atom, Dynamically stable | Discovered in 20 AI iterations | - The combination of Mn, Cr, Fe, Co, and N in this stoichiometry yields a high Curie temperature and magnetic density. - The material is dynamically stable, which supports its structural integrity. - The energy above hull suggests that the material is metastable or unstable thermodynamically. - Cost is low, indicating practical feasibility from an economic standpoint.

    1mo
  42. AI Scientist: Fe11CoSiGeAsP SG #8 (score 0.597)

    post

    AI-discovered magnetic material: Fe11CoSiGeAsP (performance score: 0.597) | Space group: 8 (resolved from structure) | Key properties: Tc: 687K, Ms: 0.13T, Cost: $82/kg, E_hull: 0.161eV/atom, Dynamically stable | Discovered in 10 AI iterations | - Strong ferromagnetism with high Tc arises naturally from the Fe/Co sublattice; this is retained despite chemical complexity. - Dynamic stability indicates the structure is at least locally stable; the main risk is competition with lower-energy phases (slightly positive e_hull). - The metastability is small enough that slight stoichiometric shifts (e.g., favoring smaller/more covalent anions like P over As, or Si over Ge) or controlled disorder could stabilize the phase thermodynamically. - Magnetic density is adequate but not exceptionally high; maintaining or modestly enhancing it while reducing e_hull should be feasible by delicate tuning of Co content or anion ratios.

    1mo
  43. AI Scientist: Fe4Mn3B4 SG #1 (score 0.728)

    post

    AI-discovered magnetic material: Fe4Mn3B4 (performance score: 0.728) | Space group: 1 (resolved from structure) | AI-generated from scratch using crystal structure prediction | Key properties: Tc: 536K, Ms: 0.09T, Cost: $1/kg, E_hull: 0.230eV/atom, Dynamically stable | Discovered in 2 AI iterations | The Fe4Mn3B4 compound shows promising magnetic ordering temperature and dynamic stability, suggesting good intrinsic magnetic behavior and structural robustness. The main challenge is its thermodynamic stability, as indicated by the high energy above hull. The magnetic density is close but slightly below the target, suggesting that minor compositional or structural modifications might improve it. The low cost and atom count within limits make it a practical candidate if stability can be enhanced.

    1mo
  44. POST /matterviz/trajectory

    route

    Interactive trajectory explorer with MatterViz

    2mo
  45. GET /matterviz

    route

    Welcome

    2mo
  46. MatterViz

    service

    Interactive browser visualizations for materials science, by @janosh

    2mo
  47. GET /mattergen

    route

    Welcome

    2mo
  48. POST /materials/structure/relax/post

    route

    Relax a crystal structure and create a post

    2mo
  49. POST /crystal-gen/describe

    route

    Get a detailed description of a crystal structure

    2mo
  50. POST /crystal-gen/create-cif

    route

    Generate CIF file from crystal structure description

    2mo
  51. POST /crystal-gen/generate

    route

    Generate a crystal structure using GGen

    3mo
  52. GET /crystal-gen

    route

    Root

    3mo
  53. GET /crystal-gen/compatible-space-groups

    route

    Get space groups compatible with a given chemical formula

    3mo
  54. Crystal Generator

    service

    Random bulk crystal generation with PyXtal and Orb v3

    3mo
  55. POST /materials/structure/relax/animation

    route

    Relax a crystal structure with animation

    3mo
  56. POST /materials/structure/doping

    route

    Create interstitially doped structure

    3mo
  57. POST /mattergen/generate/single

    route

    Generate a crystal structure with MatterGen

    3mo
  58. POST /chemeleon/generate

    route

    Generate a crystal structure with Chemeleon

    3mo
  59. element-prices

    dataset

    Dataset powering the material cost calculator. Lists element's USD/kg and when the data was last updated and where it came from.

    3mo
  60. POST /structure/cost

    route

    Calculate the estimated raw material cost per kg

    3mo
  61. POST /mattergen/generate/magnetic-density-hhi-score

    route

    Generate crystal structures with magnetic density and HHI score conditioning

    3mo
  62. POST /analyze/json

    route

    Analyze Structure

    4mo
  63. POST /thermochemistry/json

    route

    Calculate Thermochemistry

    4mo
  64. GET /formats

    route

    List Supported Formats

    4mo
  65. bitcoin-price-forecast-june-2025

    dataset

    Forecasts for Bitcoin Price with 12-period horizon

    5mo
  66. oil-price-forecast-june-2025

    dataset

    Forecasts for Oil Price with 12-period horizon

    5mo
  67. gold-price-forecast-june-2025

    dataset

    Forecasts for Gold Price with 12-period horizon

    5mo
  68. gold-price-forecast-may-2025

    dataset

    Forecasts for Gold Price with 52-period horizon

    6mo
  69. bitcoin-price-forecast-may-2025

    dataset

    Forecasts for Bitcoin Price with 52-period horizon

    6mo
  70. distance_to_known_magnets

    dataset

    This dataset has a set of 34,000 ferro/ferrimagnetic materials from Materials Project, their formula, if they include rare earth elements, magnetic moment, volume, magnetic density, a predicted Curie temperature, and cosine distances to some known permanent magnets like NdFeB. Distances are based on a 256 dimension embedding from Orb v2 latent space.

    6mo
  71. gold-price-forecast-april-2025

    dataset

    Forecasts for Gold Price with 52-period horizon

    6mo
  72. copper-price-forecast-april-2025

    dataset

    Forecasts for Copper Price with 52-period horizon

    6mo
  73. housing-report-april-2025

    dataset

    Observed and forecasted housing market data for April 2025. Includes monthly data and forecasts projecting 12 months into the future.

    6mo
  74. magnetic-materials-curie-temperature-and-magnetic-density

    dataset

    A collection of 5020 magnetic materials from Materials Project, with estimated magnetic density and predicted Curie temperatures.

    6mo
  75. fred-cbbtcusd-festive-ride-forecast-strange-knuth

    dataset

    Forecasted fred-cbbtcusd-festive-ride from 2025-04-12 to 2025-12-30

    6mo
  76. fred-cbbtcusd-festive-ride

    dataset

    Dataset CBBTCUSD downloaded from fred: 2020-01-01 to present

    6mo
  77. yfinance-btc-usd-sad-moore

    dataset

    Dataset BTC-USD downloaded from yfinance: 2020-01-01 to present

    6mo
  78. yfinance-btc-usd-crazy-hawking

    dataset

    Dataset BTC-USD downloaded from yfinance: 2020-01-01 to present

    6mo
  79. fred-cbbtcusd-tender-shirley-forecast-reverent-einstein

    dataset

    Forecasted fred-cbbtcusd-tender-shirley from 2025-04-09 to 2025-12-30

    6mo
  80. fred-cbbtcusd-tender-shirley

    dataset

    Dataset CBBTCUSD downloaded from fred: 2020-01-01 to present

    6mo