Breakdown of linear spin-wave theory and existence of spinon bound states in the frustrated kagome-lattice antiferromagnet
The spin dynamics of the spin-1/2 kagome-lattice antiferromagnet Cs2Cu3SnF12 is studied using high-resolution, time-of-flight inelastic neutron scattering. The flat mode, a characteristic of the frustrated kagome antiferromagnet, and the low-energy dispersive mode, which is dominated by magnons, can...
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th-mahidol.850902023-06-19T00:26:51Z Breakdown of linear spin-wave theory and existence of spinon bound states in the frustrated kagome-lattice antiferromagnet Matan K. Mahidol University Materials Science The spin dynamics of the spin-1/2 kagome-lattice antiferromagnet Cs2Cu3SnF12 is studied using high-resolution, time-of-flight inelastic neutron scattering. The flat mode, a characteristic of the frustrated kagome antiferromagnet, and the low-energy dispersive mode, which is dominated by magnons, can be well described by the linear spin-wave theory. However, the theory fails to describe three weakly dispersive modes between 9 and 14 meV. These modes could be attributed to two-spinon bound states, which decay into free spinons away from the zone center and at a high temperature, giving rise to continuum scattering. 2023-06-18T17:26:51Z 2023-06-18T17:26:51Z 2022-04-01 Article Physical Review B Vol.105 No.13 (2022) 10.1103/PhysRevB.105.134403 24699969 24699950 2-s2.0-85128419211 https://repository.li.mahidol.ac.th/handle/123456789/85090 SCOPUS |
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Materials Science Matan K. Breakdown of linear spin-wave theory and existence of spinon bound states in the frustrated kagome-lattice antiferromagnet |
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The spin dynamics of the spin-1/2 kagome-lattice antiferromagnet Cs2Cu3SnF12 is studied using high-resolution, time-of-flight inelastic neutron scattering. The flat mode, a characteristic of the frustrated kagome antiferromagnet, and the low-energy dispersive mode, which is dominated by magnons, can be well described by the linear spin-wave theory. However, the theory fails to describe three weakly dispersive modes between 9 and 14 meV. These modes could be attributed to two-spinon bound states, which decay into free spinons away from the zone center and at a high temperature, giving rise to continuum scattering. |
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Mahidol University |
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Mahidol University Matan K. |
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Article |
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Matan K. |
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Matan K. |
| title |
Breakdown of linear spin-wave theory and existence of spinon bound states in the frustrated kagome-lattice antiferromagnet |
| title_short |
Breakdown of linear spin-wave theory and existence of spinon bound states in the frustrated kagome-lattice antiferromagnet |
| title_full |
Breakdown of linear spin-wave theory and existence of spinon bound states in the frustrated kagome-lattice antiferromagnet |
| title_fullStr |
Breakdown of linear spin-wave theory and existence of spinon bound states in the frustrated kagome-lattice antiferromagnet |
| title_full_unstemmed |
Breakdown of linear spin-wave theory and existence of spinon bound states in the frustrated kagome-lattice antiferromagnet |
| title_sort |
breakdown of linear spin-wave theory and existence of spinon bound states in the frustrated kagome-lattice antiferromagnet |
| publishDate |
2023 |
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https://repository.li.mahidol.ac.th/handle/123456789/85090 |
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