Emergence of a Fluctuating Ground State in Y-kapellasite under Pressure
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866912991135399936 |
|---|---|
| author | Chatterjee, Dipranjan Doležal, Petr Abbruciati, Federico Biesner, Tobias Zoch, Katharina M. Khasanov, Rustem Islam, Shams Sohel Kaur, Guratinder Roh, Seulki Capitani, Francesco Rodrigues, Joao Elias F. S. Garbarino, Gaston Krellner, Cornelius Mendels, Philippe Kermarrec, Edwin Dressel, Martin Wehinger, Björn Pustogow, Andrej Bert, Fabrice Puphal, Pascal |
| author_facet | Chatterjee, Dipranjan Doležal, Petr Abbruciati, Federico Biesner, Tobias Zoch, Katharina M. Khasanov, Rustem Islam, Shams Sohel Kaur, Guratinder Roh, Seulki Capitani, Francesco Rodrigues, Joao Elias F. S. Garbarino, Gaston Krellner, Cornelius Mendels, Philippe Kermarrec, Edwin Dressel, Martin Wehinger, Björn Pustogow, Andrej Bert, Fabrice Puphal, Pascal |
| contents | Y-kapellasite (Y$_3$Cu$_9$(OH)$_{19}$Cl$_8$), which hosts an original anisotropic kagome sublattice, is a promising candidate for studying elusive and complex correlated physics. It exhibits a theoretically predicted in-plane $(1/3, 1/3)$ magnetic order [1] but its magnetic interaction values place it close to a phase boundary to a spin liquid state [2]. Our $μ$SR measurements under hydrostatic pressure demonstrate the complete suppression of static magnetism in favor of a fully dynamical ground state at $2.3$~GPa. Complementary high-pressure x-ray and optical phonon measurements reveal a gradual reduction of the kagome anisotropy, enhancing magnetic frustration without structural transitions. Our results establish Y-kapellasite as a rare clean kagome model in which long-range order is suppressed by pressure-tuned frustration, the first fingerprint for the realization of a quantum spin liquid without strong disorder. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_09733 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Emergence of a Fluctuating Ground State in Y-kapellasite under Pressure Chatterjee, Dipranjan Doležal, Petr Abbruciati, Federico Biesner, Tobias Zoch, Katharina M. Khasanov, Rustem Islam, Shams Sohel Kaur, Guratinder Roh, Seulki Capitani, Francesco Rodrigues, Joao Elias F. S. Garbarino, Gaston Krellner, Cornelius Mendels, Philippe Kermarrec, Edwin Dressel, Martin Wehinger, Björn Pustogow, Andrej Bert, Fabrice Puphal, Pascal Strongly Correlated Electrons Y-kapellasite (Y$_3$Cu$_9$(OH)$_{19}$Cl$_8$), which hosts an original anisotropic kagome sublattice, is a promising candidate for studying elusive and complex correlated physics. It exhibits a theoretically predicted in-plane $(1/3, 1/3)$ magnetic order [1] but its magnetic interaction values place it close to a phase boundary to a spin liquid state [2]. Our $μ$SR measurements under hydrostatic pressure demonstrate the complete suppression of static magnetism in favor of a fully dynamical ground state at $2.3$~GPa. Complementary high-pressure x-ray and optical phonon measurements reveal a gradual reduction of the kagome anisotropy, enhancing magnetic frustration without structural transitions. Our results establish Y-kapellasite as a rare clean kagome model in which long-range order is suppressed by pressure-tuned frustration, the first fingerprint for the realization of a quantum spin liquid without strong disorder. |
| title | Emergence of a Fluctuating Ground State in Y-kapellasite under Pressure |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2502.09733 |