Quantum-critical spin dynamics in a Tomonaga-Luttinger liquid studied with muon-spin relaxation
We demonstrate that quantum-critical spin dynamics can be probed in high magnetic fields using muon-spin relaxation (μ+SR). Our model system is the strong-leg spin ladder bis(2,3-dimethylpyridinium) tetrabromocuprate (DIMPY). In the gapless Tomonaga-Luttinger liquid phase we observe finite-temperatu...
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Journal article |
| Published: |
American Physical Society
2017
|
| _version_ | 1826256525353549824 |
|---|---|
| author | Möller, J Lancaster, T Blundell, S Pratt, F Baker, P Xiao, F Williams, R Hayes, W Turnbull, M Landee, C |
| author_facet | Möller, J Lancaster, T Blundell, S Pratt, F Baker, P Xiao, F Williams, R Hayes, W Turnbull, M Landee, C |
| author_sort | Möller, J |
| collection | OXFORD |
| description | We demonstrate that quantum-critical spin dynamics can be probed in high magnetic fields using muon-spin relaxation (μ+SR). Our model system is the strong-leg spin ladder bis(2,3-dimethylpyridinium) tetrabromocuprate (DIMPY). In the gapless Tomonaga-Luttinger liquid phase we observe finite-temperature scaling of the μ+SR 1/T1 relaxation rate which allows us to determine the Luttinger parameter K. We discuss the benefits and limitations of local probes compared with inelastic neutron scattering. |
| first_indexed | 2024-03-06T18:03:36Z |
| format | Journal article |
| id | oxford-uuid:00a7a2cb-ab40-4833-a2d3-f356460fb8c1 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T18:03:36Z |
| publishDate | 2017 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:00a7a2cb-ab40-4833-a2d3-f356460fb8c12022-03-26T08:30:41ZQuantum-critical spin dynamics in a Tomonaga-Luttinger liquid studied with muon-spin relaxationJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:00a7a2cb-ab40-4833-a2d3-f356460fb8c1Symplectic Elements at OxfordAmerican Physical Society2017Möller, JLancaster, TBlundell, SPratt, FBaker, PXiao, FWilliams, RHayes, WTurnbull, MLandee, CWe demonstrate that quantum-critical spin dynamics can be probed in high magnetic fields using muon-spin relaxation (μ+SR). Our model system is the strong-leg spin ladder bis(2,3-dimethylpyridinium) tetrabromocuprate (DIMPY). In the gapless Tomonaga-Luttinger liquid phase we observe finite-temperature scaling of the μ+SR 1/T1 relaxation rate which allows us to determine the Luttinger parameter K. We discuss the benefits and limitations of local probes compared with inelastic neutron scattering. |
| spellingShingle | Möller, J Lancaster, T Blundell, S Pratt, F Baker, P Xiao, F Williams, R Hayes, W Turnbull, M Landee, C Quantum-critical spin dynamics in a Tomonaga-Luttinger liquid studied with muon-spin relaxation |
| title | Quantum-critical spin dynamics in a Tomonaga-Luttinger liquid studied with muon-spin relaxation |
| title_full | Quantum-critical spin dynamics in a Tomonaga-Luttinger liquid studied with muon-spin relaxation |
| title_fullStr | Quantum-critical spin dynamics in a Tomonaga-Luttinger liquid studied with muon-spin relaxation |
| title_full_unstemmed | Quantum-critical spin dynamics in a Tomonaga-Luttinger liquid studied with muon-spin relaxation |
| title_short | Quantum-critical spin dynamics in a Tomonaga-Luttinger liquid studied with muon-spin relaxation |
| title_sort | quantum critical spin dynamics in a tomonaga luttinger liquid studied with muon spin relaxation |
| work_keys_str_mv | AT mollerj quantumcriticalspindynamicsinatomonagaluttingerliquidstudiedwithmuonspinrelaxation AT lancastert quantumcriticalspindynamicsinatomonagaluttingerliquidstudiedwithmuonspinrelaxation AT blundells quantumcriticalspindynamicsinatomonagaluttingerliquidstudiedwithmuonspinrelaxation AT prattf quantumcriticalspindynamicsinatomonagaluttingerliquidstudiedwithmuonspinrelaxation AT bakerp quantumcriticalspindynamicsinatomonagaluttingerliquidstudiedwithmuonspinrelaxation AT xiaof quantumcriticalspindynamicsinatomonagaluttingerliquidstudiedwithmuonspinrelaxation AT williamsr quantumcriticalspindynamicsinatomonagaluttingerliquidstudiedwithmuonspinrelaxation AT hayesw quantumcriticalspindynamicsinatomonagaluttingerliquidstudiedwithmuonspinrelaxation AT turnbullm quantumcriticalspindynamicsinatomonagaluttingerliquidstudiedwithmuonspinrelaxation AT landeec quantumcriticalspindynamicsinatomonagaluttingerliquidstudiedwithmuonspinrelaxation |