Magnetoelastic coupling in intercalated transition metal dichalcogenides

Fuente: arXiv
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Main Authors: Kar, A., Basak, R., Li, Xue, Korshunov, A., Subires, D., Phillips, J., Lim, C. -Y., Zhou, Feng, Song, Linxuan, Wang, Wenhong, Lau, Yong-Chang, Garbarino, G., Gargiani, P., Zhao, Y., Plueckthun, C., Francoual, S., Jana, A., Vobornik, I., Valla, T., Rajapitamahuni, A., Analytis, James G., Birgeneau, Robert J., Vescovo, E., Bosak, A., Dai, J., Tallarida, M., Frano, A., Pardo, V., Wu, S., Blanco-Canosa, S.
Format: Preprint
Published: 2025
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author Kar, A.
Basak, R.
Li, Xue
Korshunov, A.
Subires, D.
Phillips, J.
Lim, C. -Y.
Zhou, Feng
Song, Linxuan
Wang, Wenhong
Lau, Yong-Chang
Garbarino, G.
Gargiani, P.
Zhao, Y.
Plueckthun, C.
Francoual, S.
Jana, A.
Vobornik, I.
Valla, T.
Rajapitamahuni, A.
Analytis, James G.
Birgeneau, Robert J.
Vescovo, E.
Bosak, A.
Dai, J.
Tallarida, M.
Frano, A.
Pardo, V.
Wu, S.
Blanco-Canosa, S.
author_facet Kar, A.
Basak, R.
Li, Xue
Korshunov, A.
Subires, D.
Phillips, J.
Lim, C. -Y.
Zhou, Feng
Song, Linxuan
Wang, Wenhong
Lau, Yong-Chang
Garbarino, G.
Gargiani, P.
Zhao, Y.
Plueckthun, C.
Francoual, S.
Jana, A.
Vobornik, I.
Valla, T.
Rajapitamahuni, A.
Analytis, James G.
Birgeneau, Robert J.
Vescovo, E.
Bosak, A.
Dai, J.
Tallarida, M.
Frano, A.
Pardo, V.
Wu, S.
Blanco-Canosa, S.
contents The large van der Waals gap in transition metal dichalcogenides (TMDs) offers an avenue to host external metal atoms that modify the ground state of these 2D materials. Here, we experimentally and theoretically address the charge correlations in a family of intercalated TMDs. While short-range charge fluctuations develop in Co$_{1/3}$TaS$_{2}$ and Fe$_{1/3}$TaS$_{2}$, long-range charge order switches-on in Fe$_{1/3}$NbS$_{2}$ driven by the interplay of magnetic order and lattice degrees of freedom. The magnetoelastic coupling is demonstrated in Fe$_{1/3}$NbS$_{2}$ by the enhancement of the charge modulations upon magnetic field below T$_\mathrm{N}$, although Density Functional Perturbation Theory (DFPT) calculations predict negligible electron(spin)-phonon coupling. Furthermore, we show that Co-intercalated TaS$_2$ displays a kagome-like Fermi surface, hence opening the path to engineer electronic band structures and study the entanglement of spin, charge, and spin-phonon mechanisms in the large family of intercalated TMDs.
format Preprint
id arxiv_https___arxiv_org_abs_2503_14444
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Magnetoelastic coupling in intercalated transition metal dichalcogenides
Kar, A.
Basak, R.
Li, Xue
Korshunov, A.
Subires, D.
Phillips, J.
Lim, C. -Y.
Zhou, Feng
Song, Linxuan
Wang, Wenhong
Lau, Yong-Chang
Garbarino, G.
Gargiani, P.
Zhao, Y.
Plueckthun, C.
Francoual, S.
Jana, A.
Vobornik, I.
Valla, T.
Rajapitamahuni, A.
Analytis, James G.
Birgeneau, Robert J.
Vescovo, E.
Bosak, A.
Dai, J.
Tallarida, M.
Frano, A.
Pardo, V.
Wu, S.
Blanco-Canosa, S.
Strongly Correlated Electrons
Materials Science
The large van der Waals gap in transition metal dichalcogenides (TMDs) offers an avenue to host external metal atoms that modify the ground state of these 2D materials. Here, we experimentally and theoretically address the charge correlations in a family of intercalated TMDs. While short-range charge fluctuations develop in Co$_{1/3}$TaS$_{2}$ and Fe$_{1/3}$TaS$_{2}$, long-range charge order switches-on in Fe$_{1/3}$NbS$_{2}$ driven by the interplay of magnetic order and lattice degrees of freedom. The magnetoelastic coupling is demonstrated in Fe$_{1/3}$NbS$_{2}$ by the enhancement of the charge modulations upon magnetic field below T$_\mathrm{N}$, although Density Functional Perturbation Theory (DFPT) calculations predict negligible electron(spin)-phonon coupling. Furthermore, we show that Co-intercalated TaS$_2$ displays a kagome-like Fermi surface, hence opening the path to engineer electronic band structures and study the entanglement of spin, charge, and spin-phonon mechanisms in the large family of intercalated TMDs.
title Magnetoelastic coupling in intercalated transition metal dichalcogenides
topic Strongly Correlated Electrons
Materials Science
url https://arxiv.org/abs/2503.14444