Quantum spin chain as a potential realization of the Confederate Flag model
| Autor: | Balz, C., Lake, B., Luetkens, H., Baines, C., Guidi, T., Abdel-Hafiez, M., Wolter, A. U. B., Büchner, B., Morozov, I. V., Deeva, E. B., Volkova, O. S., Vasiliev, A. N. |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Phys. Rev. B Condens. Matter Mater. Phys. Physical Review B-Condensed Matter and Materials Physics |
| Popis: | It is well established that long-range magnetic order is suppressed in magnetic systems whose interactions are low dimensional. The prototypical example is the S-12 Heisenberg antiferromagnetic chain (S-12 HAFC) whose ground state is quantum critical. In real S-12 HAFC compounds interchain coupling induces long-range magnetic order although with a suppressed ordered moment and reduced Néel temperature compared to the Curie-Weiss temperature. Recently, it was suggested that order can also be suppressed if the interchain interactions are frustrated, as for the Confederate Flag model. Here, we study the new S-12 HAFC, (NO)[Cu(NO3)3]. This material shows extreme suppression of order which furthermore is incommensurate revealing the presence of frustration consistent with the Confederate Flag model. © 2014 American Physical Society. |
| Databáze: | OpenAIRE |
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