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Regular version of the site

Article

Realization of the Nersesyan-Tsvelik model in (NO)[Cu(NO3)3]

Shutov V. V., Volkova O., Morozov I., Lapsheva E., Shinzingre P., Cépas O., Yehia M., Kataev V., Büchner B., Vasiliev A.

The topology of the magnetic interactions of the copper spins in the nitrosonium nitratocuprate (NO)[Cu(NO3)3])[Cu(NOsuggests that it could be a realization of the Nersesyan-Tsvelik model [A. A. Nersesyan and A. M. Tsvelik, Phys. Rev. B 67, 024422 (2003)], whose ground state was argued to be either a resonating valence-bond state or a valence-bond crystal. The measurement of thermodynamic and magnetic resonance properties reveals a behavior inherent to low-dimensional spin S=12 systems and provides indeed no evidence for the formation of long-range magnetic order down to 1.8 K.