Ce-substitution effects in GdBaCo2O5+delta

作者：Yasodha P; Gayathri N; Bharathi A^*; Premila A; Sundar C S; Hariharan Y

来源：Solid State Communications, 2007, 144(5-6): 215-219.

DOI：10.1016/j.ssc.2007.08.033

• magnetically ordered materials
• chemical synthesis
• electronic transport
• magnetoresistance

Resistivity, thermopower, magnetoresi stance and magnetic susceptibility investigations of Ce-substituted GdBaCo2O5+delta have been carried out in the temperature range 4.2-300 K. Cc substitution affects the magnetism of the parent compound, decreasing its ferromagnetic and antiferromagnetic transition temperatures T-C and T-N respectively. Thermopower measurements carried out in the temperature range 77-300 K indicate an increase with Cc substitution which remains positive. The magnetoresi stance observed in the anti-ferromagnetic region seems to increase with Cc substitution.

• 出版日期2007-11