Charge correlations and magnetoelastic coupling in intercalated transition metal dichalcogenides
Intercalating magnetic atoms into layered transition metal dichalcogenides provides a powerful route to engineer intertwined electronic and magnetic states. Using angle-resolved photoemission, X-ray scattering, magnetometry, and first-principles calculations, we uncover the origin of charge correlations in Fe- and Co-intercalated TaS₂ and NbS₂. While Ta-based compounds exhibit only short-range charge fluctuations, Fe₀.₃₅NbS₂ develops long-range charge order concomitant with antiferromagnetism and enhanced by magnetic field. By ruling out Fermi-surface nesting and conventional electron--phonon coupling, we show that this charge order is stabilized by strong magnetoelastic coupling, establishing magnetic intercalation as a route to tune spin-lattice-charge entanglement in van der Waals materials.
Authors
- Massimo Tallarida (ORCID: https://orcid.org/0000-0002-1438-3466)
- Jan Phillips (ORCID: https://orcid.org/0000-0003-1736-1243)
- David Subires
- Linxuan Song (ORCID: https://orcid.org/0000-0002-8549-0357)
- Pierluigi Gargiani (ORCID: https://orcid.org/0000-0002-6649-0538)
- Anupam Jana (ORCID: https://orcid.org/0000-0002-2967-9315)
- Fei Zhou (ORCID: https://orcid.org/0000-0002-9687-1382)
- Sonia Francoual (ORCID: https://orcid.org/0000-0002-5788-595X)
- Wenhong Wang
- T. Valla (ORCID: https://orcid.org/0000-0002-3237-9102)
- Víctor Pardo (ORCID: https://orcid.org/0000-0002-4713-3519)
- I. Vobornik (ORCID: https://orcid.org/0000-0001-9957-3535)
- A. N. Korshunov (ORCID: https://orcid.org/0000-0001-5929-6473)
- Christian Plueckthun
- S. Blanco-Canosa (ORCID: https://orcid.org/0000-0002-4437-5846)
- Yong‐Chang Lau (ORCID: https://orcid.org/0000-0001-6057-4733)
- Anil Rajapitamahuni (ORCID: https://orcid.org/0000-0003-3092-4258)
- S. Wu
- A. Kar
- Robert J. Birgeneau
- A. Bosak
- E. Vescovo
- C. Lim
- Xue Li
- G. Garbarino
- R. Basak
- James G. Analytis
- J. Dai
Institutions
- Lawrence Berkeley National Laboratory (US)
- Santa Clara University (US)
- University of the Basque Country (ES)
- Tiangong University (CN)
- Chinese Academy of Sciences (CN)
- Universidade de Santiago de Compostela (ES)
- Brookhaven National Laboratory (US)
- ALBA Synchrotron (Spain) (ES)
- Deutsches Elektronen-Synchrotron DESY (DE)
- European Synchrotron Radiation Facility (FR)
- Center for Theoretical Physics (PL)
- University of California San Diego (US)
- Quantum (Australia) (AU)
- Istituto Officina dei Materiali (IT)
- Institute of Physics (HR)
- University of Chinese Academy of Sciences (CN)
- Donostia International Physics Center (ES)
- University of California, Berkeley (US)
Publication Details
- Journal
- Physical Review Materials
- Published
- 2026-03-23
- DOI
- https://doi.org/10.1103/gyfq-2c26
- Primary Topic
- 2D Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00