Magnetoresistance behaviour and thermoelectric transport properties of Gd7T3 (T = Pd, Rh) single crystals

The thermoelectric power and magnetoresistivity behaviour of the Gd7Rh3 and Gd7Pd3 single crystals, ordering magnetically at TN = 140 K, and TC = 334 K, respectively, have been investigated. Gd7Rh3 exhibits giant magnetoresistance behaviour (with a negative sign) at rather high temperatures along the c direction. The thermoelectric power of Gd7T3 shows a strongly anisotropic behaviour.