Pressure Evolution of Magnetic Structure and Quasiparticle Excitations in Anisotropic Frustrated Zigzag Chains
Fuente:
arXiv
Guardado en:
| Autores principales: | , , , , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2024
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866917877408333824 |
|---|---|
| author | Hori, Fumiya Matsudaira, Hiroyasu Kitagawa, Shunsaku Ishida, Kenji Suzuki, Hiroto Onimaru, Takahiro |
| author_facet | Hori, Fumiya Matsudaira, Hiroyasu Kitagawa, Shunsaku Ishida, Kenji Suzuki, Hiroto Onimaru, Takahiro |
| contents | Frustrated magnetic systems with anisotropic exchange interactions have been recognized as key platforms for discovering exotic quantum states and quasiparticles. In this study, we report the pressure evolution of magnetic structures and quasiparticle excitations in the frustrated semiconductor YbCuS2, characterized by Yb3+ zigzag chains with competing exchange interactions. At ambient pressure, YbCuS2 exhibits a magnetic transition at TN ~ 0.95 K, forming an incommensurate helical magnetic order. Under hydrostatic pressure of 1.6 GPa, TN increases to 1.17 K, and the magnetic structure changes to a commensurate one, which can be regarded as an odd-parity magnetic multipole order. Remarkably, pressure suppresses the gapless quasiparticle excitations. These findings suggest that pressure alters the exchange interactions between the Yb ions, affecting both the magnetic ground state and the quasiparticle excitations. Our results highlight the pivotal role of anisotropic interactions in one-dimensionality to stabilize the complex quantum phases, offering insights into the interplay among frustration, dimensionality, multipoles and emergent quasiparticles. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_17575 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Pressure Evolution of Magnetic Structure and Quasiparticle Excitations in Anisotropic Frustrated Zigzag Chains Hori, Fumiya Matsudaira, Hiroyasu Kitagawa, Shunsaku Ishida, Kenji Suzuki, Hiroto Onimaru, Takahiro Strongly Correlated Electrons Frustrated magnetic systems with anisotropic exchange interactions have been recognized as key platforms for discovering exotic quantum states and quasiparticles. In this study, we report the pressure evolution of magnetic structures and quasiparticle excitations in the frustrated semiconductor YbCuS2, characterized by Yb3+ zigzag chains with competing exchange interactions. At ambient pressure, YbCuS2 exhibits a magnetic transition at TN ~ 0.95 K, forming an incommensurate helical magnetic order. Under hydrostatic pressure of 1.6 GPa, TN increases to 1.17 K, and the magnetic structure changes to a commensurate one, which can be regarded as an odd-parity magnetic multipole order. Remarkably, pressure suppresses the gapless quasiparticle excitations. These findings suggest that pressure alters the exchange interactions between the Yb ions, affecting both the magnetic ground state and the quasiparticle excitations. Our results highlight the pivotal role of anisotropic interactions in one-dimensionality to stabilize the complex quantum phases, offering insights into the interplay among frustration, dimensionality, multipoles and emergent quasiparticles. |
| title | Pressure Evolution of Magnetic Structure and Quasiparticle Excitations in Anisotropic Frustrated Zigzag Chains |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2412.17575 |