Describing Migdal effects in diamond crystal with atom-centered localized Wannier functions

Abstract

Recent studies have theoretically investigated the atomic excitation and ionization induced by the dark matter (DM)-nucleus scattering, and it is found that the suddenly recoiled atom is much more likely to excite or lose its electrons than expected. Such phenomenon is called the "Migdal effect". In this paper, we extend the established strategy to describe the Migdal effect in isolated atoms to the case in semiconductors under the framework of tight-binding (TB) approximation. Since the localized aspects of electrons are respected in form of the Wannier functions (WFs), the extension of the existing Migdal approach for isolated atoms is much more natural, while the extensive nature of electrons in solids is reflected in the hopping integrals. We take diamond target as a concrete proof of principle for the methodology, and calculate relevant energy spectra and projected sensitivity of such diamond detector. It turns out that our method as a preliminary attempt is practically effective.

arXiv commentlatest version

References in corpus (52)

• Quantum ESPRESSO: a modular and open-source software project for quantum simulations of materials
• Maximally-localized generalized Wannier functions for composite energy bands
• Maximally localized Wannier functions: Theory and applications
• Maximally-localized Wannier functions for entangled energy bands
• Dark Matter Search Results from a One Tonne$\times$Year Exposure of XENON1T
• Direct Detection of Sub-GeV Dark Matter
• Light Dark Matter Search with Ionization Signals in XENON1T
• First results from the CRESST-III low-mass dark matter program
• First Direct Detection Limits on sub-GeV Dark Matter from XENON10
• Low-Mass Dark Matter Search with the DarkSide-50 Experiment
• New Constraints and Prospects for sub-GeV Dark Matter Scattering off Electrons in Xenon
• Migdal Effect in Dark Matter Direct Detection Experiments
• Superconducting Detectors for Super Light Dark Matter
• Searching for low-mass dark matter particles with a massive Ge bolometer operated above-ground
• Low-Mass Dark Matter Search with CDMSlite
• Detection of sub-MeV Dark Matter with Three-Dimensional Dirac Materials
• Detecting Superlight Dark Matter with Fermi-Degenerate Materials
• Detection of Light Dark Matter With Optical Phonons in Polar Materials
• Semiconductor Probes of Light Dark Matter
• Absorption of light dark matter in semiconductors
• Direct Detection of Strongly Interacting Sub-GeV Dark Matter via Electron Recoils
• Directional Detection of Dark Matter with Two-Dimensional Targets
• On the Detectability of Light Dark Matter with Superfluid Helium
• Searching for Dark Absorption with Direct Detection Experiments
• Direct Detection of sub-GeV Dark Matter with Scintillating Targets
• Detecting Ultralight Bosonic Dark Matter via Absorption in Superconductors
• Results of a Search for Sub-GeV Dark Matter Using 2013 LUX Data
• On electromagnetic contributions in WIMP quests
• Directional Detection of Light Dark Matter with Polar Materials
• Directly detecting sub-GeV dark matter with electrons from nuclear scattering
• On the relation between Migdal effect and dark matter-electron scattering in isolated atoms and semiconductors
• Modulation Effects in Dark Matter-Electron Scattering Experiments
• Constraints on Spin-Independent Nucleus Scattering with sub-GeV Weakly Interacting Massive Particle Dark Matter from the CDEX-1B Experiment at the China Jin-Ping Laboratory
• Light Dark Matter in Superfluid Helium: Detection with Multi-excitation Production
• Diamond Detectors for Direct Detection of Sub-GeV Dark Matter
• Electron Ionization via Dark Matter-Electron Scattering and the Migdal Effect
• Multi-Channel Direct Detection of Light Dark Matter: Theoretical Framework
• Dirac Materials for Sub-MeV Dark Matter Detection: New Targets and Improved Formalism
• Direct Detection of Light Dark Matter and Solar Neutrinos via Color Center Production in Crystals
• The Migdal Effect and Photon Bremsstrahlung in effective field theories of dark matter direct detection and coherent elastic neutrino-nucleus scattering
• Sub-GeV Dark Matter Detection with Electron Recoils in Carbon Nanotubes
• Detecting Light Dark Matter with Magnons
• Resonant absorption of bosonic dark matter in molecules
• Detection of sub-GeV Dark Matter and Solar Neutrinos via Chemical-Bond Breaking
• Constraining Dark Matter Models with a Light Mediator from PandaX-II Experiment
• Multiphonon excitations from dark matter scattering in crystals
• Directional Sensitivity In Light-Mass Dark Matter Searches With Single-Electron Resolution Ionization Detectors
• Sub-MeV Dark Matter and the Goldstone Modes of Superfluid Helium
• Sub-GeV Dark Matter in Superfluid He-4: an Effective Theory Approach
• Dark Matter, Dark Photon and Superfluid He-4 from Effective Field Theory
• Velocity Dependent Dark Matter Interactions in Single-Electron Resolution Semiconductor Detectors with Directional Sensitivity
• The wavefunction reconstruction effects in calculation of DM-induced electronic transition in semiconductor targets

Cited by in corpus (16)

• The Migdal effect in semiconductors
• DarkELF: A python package for dark matter scattering in dielectric targets
• Searches for light dark matter using condensed matter systems
• Describing the Migdal effect with a bremsstrahlung-like process and many-body effects
• A Search for Low-mass Dark Matter via Bremsstrahlung Radiation and the Migdal Effect in SuperCDMS
• The MIGDAL experiment: Measuring a rare atomic process to aid the search for dark matter
• The Migdal Effect in Semiconductors for Dark Matter with Masses below $\sim$100 MeV
• The Molecular Migdal Effect
• Measuring the Migdal effect in semiconductors for dark matter detection
• Phonon-mediated Migdal effect in semiconductor detectors
• An Improved Bound on Accelerated Light Dark Matter
• Fuelling the search for light dark matter-electron scattering with spherical proportional counters
• Measuring the molecular Migdal effect with neutron scattering on diatomic gases
• Nuclear and electron scattering by neutrinos and dark matter in condensed systems
• The Migdal effect in solid crystals and the role of non-adiabaticity
• Comparison of the Migdal transition probabilities in electron-atom inelastic cross sections