Emergence of the spin polarized domains in the kagome lattice Heisenberg antiferromagnet Zn-barlowite (Zn0.95Cu0.05)Cu3(OD)6FBr
Abstract Kagome lattice Heisenberg antiferromagnets are known to be highly sensitive to perturbations caused by the structural disorder. NMR is a local probe ideally suited for investigating such disorder-induced effects, but in practice, large distributions in the conventional one-dimensional NMR d...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2022-12-01
|
| Series: | npj Quantum Materials |
| Online Access: | https://doi.org/10.1038/s41535-022-00531-w |
| _version_ | 1797973804015681536 |
|---|---|
| author | Weishi Yuan Jiaming Wang Philip M. Singer Rebecca W. Smaha Jiajia Wen Young S. Lee Takashi Imai |
| author_facet | Weishi Yuan Jiaming Wang Philip M. Singer Rebecca W. Smaha Jiajia Wen Young S. Lee Takashi Imai |
| author_sort | Weishi Yuan |
| collection | DOAJ |
| description | Abstract Kagome lattice Heisenberg antiferromagnets are known to be highly sensitive to perturbations caused by the structural disorder. NMR is a local probe ideally suited for investigating such disorder-induced effects, but in practice, large distributions in the conventional one-dimensional NMR data make it difficult to distinguish the intrinsic behavior expected for pristine kagome quantum spin liquids from disorder-induced effects. Here we report the development of a two-dimensional NMR data acquisition scheme applied to Zn-barlowite (Zn0.95Cu0.05)Cu3(OD)6FBr kagome lattice, and successfully correlate the distribution of the low energy spin excitations with that of the local spin susceptibility. We present evidence for the gradual growth of domains with a local spin polarization induced by 5% Cu2+ defect spins occupying the interlayer non-magnetic Zn2+ sites. These spin-polarized domains account for ~60% of the sample volume at 2 K, where gapless excitations induced by interlayer defects dominate the low-energy sector of spin excitations within the kagome planes. |
| first_indexed | 2024-04-11T04:10:02Z |
| format | Article |
| id | doaj.art-c564ac2435e444c6b74ea3aed7cdef7b |
| institution | Directory Open Access Journal |
| issn | 2397-4648 |
| language | English |
| last_indexed | 2024-04-11T04:10:02Z |
| publishDate | 2022-12-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Quantum Materials |
| spelling | doaj.art-c564ac2435e444c6b74ea3aed7cdef7b2023-01-01T12:12:24ZengNature Portfolionpj Quantum Materials2397-46482022-12-017111010.1038/s41535-022-00531-wEmergence of the spin polarized domains in the kagome lattice Heisenberg antiferromagnet Zn-barlowite (Zn0.95Cu0.05)Cu3(OD)6FBrWeishi Yuan0Jiaming Wang1Philip M. Singer2Rebecca W. Smaha3Jiajia Wen4Young S. Lee5Takashi Imai6Department of Physics and Astronomy, McMaster UniversityDepartment of Physics and Astronomy, McMaster UniversityDepartment of Chemical and Biomolecular Engineering, Rice UniversityStanford Institute for Materials and Energy Sciences, SLAC National Accelerator LaboratoryStanford Institute for Materials and Energy Sciences, SLAC National Accelerator LaboratoryStanford Institute for Materials and Energy Sciences, SLAC National Accelerator LaboratoryDepartment of Physics and Astronomy, McMaster UniversityAbstract Kagome lattice Heisenberg antiferromagnets are known to be highly sensitive to perturbations caused by the structural disorder. NMR is a local probe ideally suited for investigating such disorder-induced effects, but in practice, large distributions in the conventional one-dimensional NMR data make it difficult to distinguish the intrinsic behavior expected for pristine kagome quantum spin liquids from disorder-induced effects. Here we report the development of a two-dimensional NMR data acquisition scheme applied to Zn-barlowite (Zn0.95Cu0.05)Cu3(OD)6FBr kagome lattice, and successfully correlate the distribution of the low energy spin excitations with that of the local spin susceptibility. We present evidence for the gradual growth of domains with a local spin polarization induced by 5% Cu2+ defect spins occupying the interlayer non-magnetic Zn2+ sites. These spin-polarized domains account for ~60% of the sample volume at 2 K, where gapless excitations induced by interlayer defects dominate the low-energy sector of spin excitations within the kagome planes.https://doi.org/10.1038/s41535-022-00531-w |
| spellingShingle | Weishi Yuan Jiaming Wang Philip M. Singer Rebecca W. Smaha Jiajia Wen Young S. Lee Takashi Imai Emergence of the spin polarized domains in the kagome lattice Heisenberg antiferromagnet Zn-barlowite (Zn0.95Cu0.05)Cu3(OD)6FBr npj Quantum Materials |
| title | Emergence of the spin polarized domains in the kagome lattice Heisenberg antiferromagnet Zn-barlowite (Zn0.95Cu0.05)Cu3(OD)6FBr |
| title_full | Emergence of the spin polarized domains in the kagome lattice Heisenberg antiferromagnet Zn-barlowite (Zn0.95Cu0.05)Cu3(OD)6FBr |
| title_fullStr | Emergence of the spin polarized domains in the kagome lattice Heisenberg antiferromagnet Zn-barlowite (Zn0.95Cu0.05)Cu3(OD)6FBr |
| title_full_unstemmed | Emergence of the spin polarized domains in the kagome lattice Heisenberg antiferromagnet Zn-barlowite (Zn0.95Cu0.05)Cu3(OD)6FBr |
| title_short | Emergence of the spin polarized domains in the kagome lattice Heisenberg antiferromagnet Zn-barlowite (Zn0.95Cu0.05)Cu3(OD)6FBr |
| title_sort | emergence of the spin polarized domains in the kagome lattice heisenberg antiferromagnet zn barlowite zn0 95cu0 05 cu3 od 6fbr |
| url | https://doi.org/10.1038/s41535-022-00531-w |
| work_keys_str_mv | AT weishiyuan emergenceofthespinpolarizeddomainsinthekagomelatticeheisenbergantiferromagnetznbarlowitezn095cu005cu3od6fbr AT jiamingwang emergenceofthespinpolarizeddomainsinthekagomelatticeheisenbergantiferromagnetznbarlowitezn095cu005cu3od6fbr AT philipmsinger emergenceofthespinpolarizeddomainsinthekagomelatticeheisenbergantiferromagnetznbarlowitezn095cu005cu3od6fbr AT rebeccawsmaha emergenceofthespinpolarizeddomainsinthekagomelatticeheisenbergantiferromagnetznbarlowitezn095cu005cu3od6fbr AT jiajiawen emergenceofthespinpolarizeddomainsinthekagomelatticeheisenbergantiferromagnetznbarlowitezn095cu005cu3od6fbr AT youngslee emergenceofthespinpolarizeddomainsinthekagomelatticeheisenbergantiferromagnetznbarlowitezn095cu005cu3od6fbr AT takashiimai emergenceofthespinpolarizeddomainsinthekagomelatticeheisenbergantiferromagnetznbarlowitezn095cu005cu3od6fbr |