Published January 8, 2026 | Version v1
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Lithium Intercalation in the Anisotropic Van Der Waals Semiconductor CrSBr

Authors/Creators

  • 1. University of Chemistry and Technology Prague, Czech Republic
  • 2. Institute of Physics of the Czech Academy of Sciences, Czech Republic
  • 3. Technical University of Munich, Germany
  • 4. Université catholique de Louvain, Belgium
  • 5. EPFL, Switzerland
  • 6. Université catholique de Louvain, Belgium; WEL Research Institute, Belgium
  • 7. University of Chemistry and Technology Prague, Czech Republic; Institute of Physics, Zagreb, Croatia

Contributors

  • 1. University of Chemistry and Technology Prague, Czech Republic

Description

Alkali metal intercalation is an important strategy for doping van der Waals materials. In this work, lithium intercalation between layers of the anisotropic magnetic semiconductor CrSBr is investigated using exfoliated crystals, enabling real-time monitoring of intercalation dynamics through optical and electrical characterization. The measurements reveal highly anisotropic lithium migration with diffusion coefficients differing by more than one order of magnitude along the a- and b-directions, consistent with molecular dynamics simulations showing lithium trajectories primarily following Br chains along the a-direction. Partial or complete hBN encapsulation significantly affects the intercalation process, and lithium enhances electrical conductivity along the a-axis. The approach provides a platform for lithium diffusion studies and the fabrication of lithium-doped devices.

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Additional details

Related works

Is described by
Journal article: 10.1002/adfm.202523178 (DOI)
Is identical to
Journal article: 10.1002/adfm.202523178 (DOI)

Funding

Ministry of Education Youth and Sports
Advanced Multiscale Materials for Key Enabling Technologies CZ.02.01.01/00/22_008/0004558