| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Neutron and X-ray Scattering in Materials Science and Engineering
|
| Presentation Title |
Anomalous Neutron Nuclear-Magnetic Interference Spectroscopy |
| Author(s) |
Chuliang Fu, Phum Siriviboon, Artittaya Boonkird, Michael Landry, Chen Li, Weiwei Xie, Mingda Li |
| On-Site Speaker (Planned) |
Chuliang Fu |
| Abstract Scope |
The electron-phonon interaction plays a critical role in materials’ electrical, thermal, optical, and superconducting properties. However, measuring the phonon mode-resolved electron-phonon interaction has been challenging. Here we propose neutron-scattering-based Anomalous Neutron
nUclear-Magnetic Interference Spectroscopy (ANUBIS), where the co-existence of neutron nuclear scattering and magnetic scattering leads to anomalous dynamical structure factor under the presence of the electron-phonon interaction. Such anomalous structure factor is linear in electron-phonon
coupling constant at the phonon wavevector, and is directly proportional to the momentum and energy-resolved dielectric function. The experimental configuration can be achieved using existing polarized inelastic neutron scattering setup, and an order-of-magnitude estimate shows the viability
to observe the anomalous scattering signal is around 10−4 to 10−3 relative to phonon scattering, which is achievable at emerging neutron facilities. Our proposal offers an alternative neutron-based metrology to probe the crucial electronic properties. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, |