Abstract
The heat capacity of polycrystalline R2Ti3Ge4 (R=Gd, Tb, and Er) compounds (orthorhombic, Sm5Ge4-type, space group Pnma) has been studied in the temperature range of 1.8–300K in various applied magnetic fields. The compounds with magnetic lanthanide elements show interesting low field magnetism intrigued by the possible presence of competing antiferromagnetic and ferromagnetic interactions. The magnetocaloric effect in these compounds is estimated from the field dependent heat capacity data. The magnetic entropy change and the adiabatic temperature change in the vicinity of the magnetic transition are found to be significant.
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