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Antiferromagnetic ordering in MnF(salen)
Erik Čižmár1, Olivia N Risset2, Tong Wang3
1Department of Condensed Matter Physics, P. J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovakia.
Abstract:
Antiferromagnetic order at [Formula: see text] K has been identified in Mn(III)F(salen), salen = H14C16N2O2, an S = 2 linear-chain system. Using single crystals, specific heat studies performed in magnetic fields up to 9 T revealed the presence of a field-independent cusp at the same temperature where (1)H NMR studies conducted at 42 MHz observed dramatic changes in the spin-lattice relaxation time, T 1, and in the linewidths. Low-field (less than 0.1 T) magnetic susceptibility studies of single crystals and randomly-arranged microcrystalline samples reveal subtle features associated with the transition.
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