Abstract
Abstract We have carried out specific heat measurements on EuIn2P2 at high magnetic fields perpendicular to the c -axis in the hexagonal crystal structure in order to understand its thermal properties. The temperature dependence of the specific heat exhibits a clear λ -type anomaly due to a magnetic transition at T C = 24 K , indicating that the magnetic transition is of second-order. The λ -type anomaly becomes markedly broader with increasing the magnetic field. This remarkable field-dependence is consistent with the results of previous magnetization measurements which suggest that Eu 2 + magnetic moments align ferromagnetically perpendicular to the c -axis below T C . In addition, a hump in the specific heat is observed around 7 K, which can be ascribed to the Zeeman splitting of the Eu 2 + multiplet by internal magnetic fields.
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