Abstract

A study on the magnetocaloric effect (MCE) has been carried out on the HoCo 5 single crystal using a direct method in the temperature range 78–300 K and in a magnetic field of 1.3 T at various orientations of the single crystal with respect to the direction of external magnetic field. Our research has shown that magnetic anisotropy strongly affects magnitude and sign of the MCE in the regions of spin-reorientation phase transitions. In addition, the magnetic domain structure of the HoCo 5 single crystal in (0 0 1) plane in the temperature range from room temperature down to 4.2 K was investigated.

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