24-spin clusters in the mineral boleite KPb<subscript>26</subscript>Ag<subscript>9</subscript>Cu<subscript>24</subscript>Cl<subscript>62</subscript>(OH)<subscript>48</subscript>.
In: Physical Review B, Jg. 97 (2018), Heft 1, S. 1-1
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Zugriff:
The crystal structure of the mineral boleite contains clusters of 24 S=1/2Cu2+ ions that have the shape of a truncated cube formed of eight trimers connected by edges. Susceptibility measurements and exact diagonalization calculations suggest that there are strong antiferromagnetic intratrimer interactions, such that effective S=1/2 degrees of freedom emerge on the trimers below T≲100 K. Weaker intertrimer interactions lead to the formation of a singlet ground state for these effective spins at T≲5 K. The clusters in boleite offer a situation similar to single molecule magnetism, accessible to both experiment and numerics, in which the interplay of quantum spins, geometric frustration, spin entanglement, and mesoscopic system size can be studied. [ABSTRACT FROM AUTHOR]
Titel: |
24-spin clusters in the mineral boleite KPb<subscript>26</subscript>Ag<subscript>9</subscript>Cu<subscript>24</subscript>Cl<subscript>62</subscript>(OH)<subscript>48</subscript>.
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Autor/in / Beteiligte Person: | Dreier, E. S. ; Holm, S. L. ; Lønbæk, K. ; Hansen, U. B. ; Medarde, M. ; Živković, I. ; Babkevich, P. ; Ruminy, M. ; Casati, N. ; Piovano, A. ; Rols, S. ; Nilsen, G. J. ; Boehm, M. ; Skoulatos, M. ; Schefer, J. ; Rønnow, H. M. ; Fennell, T. ; Lefmann, K. |
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Zeitschrift: | Physical Review B, Jg. 97 (2018), Heft 1, S. 1-1 |
Veröffentlichung: | 2018 |
Medientyp: | academicJournal |
ISSN: | 2469-9950 (print) |
DOI: | 10.1103/PhysRevB.97.014416 |
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