Heat capacity of CoCr2S4

Magnetic and acoustic properties of CoCr2S4

“…This is puzzling, since the acoustic properties are very sensitive to structural and magnetic transitions as shown in various spinels [2][3][4][5][6]. The specific heat results obtained in polycrystalline CoCr 2 S 4 do not show any anomaly at 28 K as well [24]. Note, that a pronounced anomaly in the The field dependence of the acoustic properties at 4 K is shown in Fig.…”