Exerting chemical pressure on the kagome lattice as frustration control in the kapellasite family ACu_{3}(OH)_{6+x}(Cl,Br)_{3−x}
The kapellasite family ACu_{3}(OH)_{6+x}(Cl,Br)_{3−x} forms a series of compounds, wherein the chemical pressure realized by the A−site cation tunes the spin exchange in the frustrated distorted kagome lattice. Via hydrothermal synthesis we have grown single crystals of the whole series for A= rare-...
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| Format: | Article |
| Language: | English |
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American Physical Society
2025-07-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/mgyp-pcpl |
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| author | Jonas Andreas Krieger Thomas James Hicken Hubertus Luetkens Reinhard K. Kremer Pascal Puphal |
| author_facet | Jonas Andreas Krieger Thomas James Hicken Hubertus Luetkens Reinhard K. Kremer Pascal Puphal |
| author_sort | Jonas Andreas Krieger |
| collection | DOAJ |
| description | The kapellasite family ACu_{3}(OH)_{6+x}(Cl,Br)_{3−x} forms a series of compounds, wherein the chemical pressure realized by the A−site cation tunes the spin exchange in the frustrated distorted kagome lattice. Via hydrothermal synthesis we have grown single crystals of the whole series for A= rare-earths and found a clear structural transition to a superstructure variant at a specific chemical pressure level exerted by A=Dy. Phases with crystal structures in the vicinity of this superstructure transition realize a distorted kagome lattice of the Cu^{2+} cations with characteristic features of a spin liquid. Here, subtle structural disorder as well as controlled chemical pressure can stabilize the spin-liquid phase. We study the crystal structure and the magnetic ground state of these phases via single-crystal x-ray diffraction, magnetic susceptibility, specific-heat, and muon spin spectroscopy measurements. |
| format | Article |
| id | doaj-art-29fdecc2c2484e21bb58129e37f0ad3f |
| institution | DOAJ |
| issn | 2643-1564 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj-art-29fdecc2c2484e21bb58129e37f0ad3f2025-08-20T02:43:05ZengAmerican Physical SocietyPhysical Review Research2643-15642025-07-017303302110.1103/mgyp-pcplExerting chemical pressure on the kagome lattice as frustration control in the kapellasite family ACu_{3}(OH)_{6+x}(Cl,Br)_{3−x}Jonas Andreas KriegerThomas James HickenHubertus LuetkensReinhard K. KremerPascal PuphalThe kapellasite family ACu_{3}(OH)_{6+x}(Cl,Br)_{3−x} forms a series of compounds, wherein the chemical pressure realized by the A−site cation tunes the spin exchange in the frustrated distorted kagome lattice. Via hydrothermal synthesis we have grown single crystals of the whole series for A= rare-earths and found a clear structural transition to a superstructure variant at a specific chemical pressure level exerted by A=Dy. Phases with crystal structures in the vicinity of this superstructure transition realize a distorted kagome lattice of the Cu^{2+} cations with characteristic features of a spin liquid. Here, subtle structural disorder as well as controlled chemical pressure can stabilize the spin-liquid phase. We study the crystal structure and the magnetic ground state of these phases via single-crystal x-ray diffraction, magnetic susceptibility, specific-heat, and muon spin spectroscopy measurements.http://doi.org/10.1103/mgyp-pcpl |
| spellingShingle | Jonas Andreas Krieger Thomas James Hicken Hubertus Luetkens Reinhard K. Kremer Pascal Puphal Exerting chemical pressure on the kagome lattice as frustration control in the kapellasite family ACu_{3}(OH)_{6+x}(Cl,Br)_{3−x} Physical Review Research |
| title | Exerting chemical pressure on the kagome lattice as frustration control in the kapellasite family ACu_{3}(OH)_{6+x}(Cl,Br)_{3−x} |
| title_full | Exerting chemical pressure on the kagome lattice as frustration control in the kapellasite family ACu_{3}(OH)_{6+x}(Cl,Br)_{3−x} |
| title_fullStr | Exerting chemical pressure on the kagome lattice as frustration control in the kapellasite family ACu_{3}(OH)_{6+x}(Cl,Br)_{3−x} |
| title_full_unstemmed | Exerting chemical pressure on the kagome lattice as frustration control in the kapellasite family ACu_{3}(OH)_{6+x}(Cl,Br)_{3−x} |
| title_short | Exerting chemical pressure on the kagome lattice as frustration control in the kapellasite family ACu_{3}(OH)_{6+x}(Cl,Br)_{3−x} |
| title_sort | exerting chemical pressure on the kagome lattice as frustration control in the kapellasite family acu 3 oh 6 x cl br 3 x |
| url | http://doi.org/10.1103/mgyp-pcpl |
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