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Specific Heat Study of anS=1/2Alternating Heisenberg Chain System:F5PNNin a Magnetic Field
2005
Physical Review Letters
We have measured the specific heat of an S=1/2 antiferromagnetic alternating Heisenberg chain pentafulorophenyl nitronyl nitroxide under magnetic fields up to H>H_C2. This compound has the field-induced magnetic ordered (FIMO) phase between H_C1 and H_C2. Characteristic behaviors are observed depending on the magnetic field up to above H_C2 outside of the H-T boundary for the FIMO. Temperature and field dependence of the specific heat are qualitatively in good agreement with the theoretical
doi:10.1103/physrevlett.94.037203
pmid:15698316
fatcat:qhsacmg2ufaw3oqhzzoeq4zudy