Multiple nearest-neighbor exchange model for the frustrated magnetic molecules {Mo72Fe30} and {Mo72Cr30}

  title={Multiple nearest-neighbor exchange model for the frustrated magnetic molecules \{Mo72Fe30\} and \{Mo72Cr30\}},
  author={C. Schroder and R. Prozorov and P. Kogerler and M. Vannette and X. Fang and M. Luban and A. Matsuo and K. Kindo and A. Muller and A. Todea},
  journal={Physical Review B},
Our measurements of the differential susceptibility $\ensuremath{\partial}M/\ensuremath{\partial}H$ of the frustrated magnetic molecules ${{\text{Mo}}_{72}{\text{Fe}}_{30}}$ and ${{\text{Mo}}_{72}{\text{Cr}}_{30}}$ reveal a pronounced dependence on magnetic field $(H)$ and temperature $(T)$ in the low $H$\char21{}low $T$ regime, contrary to the predictions of the existing models. Excellent agreement with experiment is achieved upon formulating a nearest-neighbor classical Heisenberg model where… Expand

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