| Title: |
Fluctuating magnetism in Zn-doped averievite with well-separated kagome layers |
| Authors: |
Simutis, G; Suarez-Garcia, L; Zeroual, H; Villa, I; Georgopoulou, M; Boldrin, D; Chatterjee, D; Wang, CN; Baines, C; Shiroka, T; Khasanov, R; Luetkens, H; Fak, B; Sassa, Y; Bartkowiak, M; Wills, AS; Kermarrec, E; Bert, F; Mendels, P |
| Source: |
Physical Review Materials , 9 (7) , Article 074003. (2025) |
| Publisher Information: |
AMER PHYSICAL SOC |
| Publication Year: |
2025 |
| Collection: |
University College London: UCL Discovery |
| Subject Terms: |
Science & Technology; Technology; Materials Science; Multidisciplinary; SPIN LIQUIDS; GROUND-STATE; PRESSURE; EXCITATIONS |
| Description: |
Kagome lattice decorated with S=1/2 spins is one of the most discussed ways to realize a quantum spin liquid. However, all previous material realizations of this model have suffered from additional complications, ranging from additional interactions to impurity effects. Recently, a new quantum kagome system has been identified in the form of averievite Cu 5−x Zn x V 2 O 10 (CsCl), featuring a unique double-layer spacing between the kagome planes. Using muon spin spectroscopy we show that only a complete substitution (i.e., x=2) of interplanar copper ions leads to a quantum-disordered ground state. In contrast, the parent compound (x=0) exhibits long-range magnetic order, with a phase transition around 24 K. Experiments performed on the partially substituted material (x=1) show that the transformation proceeds through an intermediate disordered, partially frozen ground state, unaffected by pressures up to 23 kbar. Our study provides a microscopic view of the magnetism of the decoupling of the kagome layers and establishes the averievite as a new material platform for the experimental study of the fully-decoupled kagome layers. |
| Document Type: |
article in journal/newspaper |
| File Description: |
text |
| Language: |
English |
| Relation: |
https://discovery.ucl.ac.uk/id/eprint/10220631/ |
| Availability: |
https://discovery.ucl.ac.uk/id/eprint/10220631/7/Wills_l7gq-cc96.pdf; https://discovery.ucl.ac.uk/id/eprint/10220631/ |
| Rights: |
open |
| Accession Number: |
edsbas.31725A27 |
| Database: |
BASE |