Accurate simulations of magnetic excitations in the neutron simulation package McStas
Fuente:
arXiv
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866908679440171008 |
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| author | Schack, Silas B. Krighaar, Kristine M. L. Lenander, Emma Y. Lefmann, Kim |
| author_facet | Schack, Silas B. Krighaar, Kristine M. L. Lenander, Emma Y. Lefmann, Kim |
| contents | A new component for the accurate simulation of neutron scattering from magnetic excitations has been developed for the neutron ray-tracing software McStas. The component SpinWave_BCO simulates inelastic neutron scattering from ferro-, antiferro-, and altermagnetic excitations in a body-centered orthorhombic crystal structure, where the dispersion relation and scattered neutron intensities are derived using linear spin wave theory.
Data from a simulated Triple-Axis Spectrometer with an extremely high resolution have been verified by direct comparison with theory and by comparison to data simulated using the package SpinW. The component serves as a proof-of-concept for the implementation of a more general linear spin wave component in McStas. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_22516 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Accurate simulations of magnetic excitations in the neutron simulation package McStas Schack, Silas B. Krighaar, Kristine M. L. Lenander, Emma Y. Lefmann, Kim Instrumentation and Detectors Materials Science A new component for the accurate simulation of neutron scattering from magnetic excitations has been developed for the neutron ray-tracing software McStas. The component SpinWave_BCO simulates inelastic neutron scattering from ferro-, antiferro-, and altermagnetic excitations in a body-centered orthorhombic crystal structure, where the dispersion relation and scattered neutron intensities are derived using linear spin wave theory. Data from a simulated Triple-Axis Spectrometer with an extremely high resolution have been verified by direct comparison with theory and by comparison to data simulated using the package SpinW. The component serves as a proof-of-concept for the implementation of a more general linear spin wave component in McStas. |
| title | Accurate simulations of magnetic excitations in the neutron simulation package McStas |
| topic | Instrumentation and Detectors Materials Science |
| url | https://arxiv.org/abs/2511.22516 |