Third-party data and source notices¶

This notice covers data files distributed in the SpinForge repository. The BSD 3-Clause License applies to SpinForge source code; third-party data retain the terms stated below.

Materials Project fixtures¶

The following test fixtures under src/spinforge/testing/assets/ were obtained from the Materials Project and are distributed under the Creative Commons Attribution 4.0 International license:

Please cite:

A. Jain, S. P. Ong, G. Hautier, W. Chen, W. D. Richards, S. Dacek, S. Cholia, D. Gunter, D. Skinner, G. Ceder, and K. A. Persson, “The Materials Project: A materials genome approach to accelerating materials innovation,” APL Materials 1, 011002 (2013). doi:10.1063/1.4812323

MnTe structural model¶

src/spinforge/testing/assets/MnTe.cif and examples/paper/collinear_MnTe/MnTe.cif are identical to the documentation copy at docs/paper/MnTe.cif. They are locally serialized pymatgen CIFs for the NiAs-type MnTe structure. The lattice constants a = b = 4.17349018 Å and c = 6.75345133 Å follow the supplemental material to:

N. Heinsdorf, “Altermagnetic Instabilities from Quantum Geometry,” Physical Review B 111, 174407 (2025). doi:10.1103/PhysRevB.111.174407

The files were generated within the SpinForge project; they are not copied MAGNDATA records.

Mn3Sn structural model¶

src/spinforge/testing/assets/Mn3Sn.cif is a locally serialized pymatgen P1 expansion of the hexagonal D0₁₉ Mn3Sn model. Its structural parameters (a = b = 5.677 Å, c = 4.534 Å, and Mn coordinate x ≈ 0.833) follow the crystallographic compilation:

P. Villars and L. D. Calvert (eds.), Pearson's Handbook of Crystallographic Data for Intermetallic Phases, Vol. 4, ASM International (1991).

For an open record of the closely corresponding structure and its primary literature source, see Crystallography Open Database entry 1522909, which cites U. P. Singh, A. K. Pal, L. Chandrasekaran, and K. P. Gupta, “Study of the manganese-rich end of the Mn-Sn system,” Transactions of the Metallurgical Society of AIME 242, 1661–1663 (1968).

The SpinForge fixture is not a byte-for-byte COD or MAGNDATA record.

Other locally generated fixture¶

src/spinforge/testing/assets/NiS2.cif is a pymatgen serialization created within the SpinForge project. Repository history records no external database file as its source, so no third-party dataset license is asserted for this file.

Article example figures¶

The following PNG schematics under docs/assets/paper/ illustrate examples from the associated article:

• fig_example_collinear.png
• fig_example_coplanar.png
• fig_example_noncoplanar.png

The figures were created for:

T. Nomoto, K. Shinohara, H. Watanabe, and R. Arita, “Systematic magnetic structure generation based on oriented spin space groups: Formulation, applications, and high-throughput first-principles calculations,” Physical Review X (accepted 2026). doi:10.1103/8n3w-h2t1

They are included with permission from their copyright holder, granted on September 6, 2026. This notice records that permission without asserting a Creative Commons license before the article's Version of Record is published.