Impact of Gd-site Doping on Magnetic, Transport and Specific Heat Behavior of Multi-Ferroic Gd2CuO4

          @misc{ scivideos_PIRSA:11070074,
            doi = {10.48660/11070074},
            url = {https://pirsa.org/11070074},
            author = {Taheri, Maryam},
            keywords = {},
            language = {en},
            title = {Impact of Gd-site Doping on Magnetic, Transport and Specific Heat Behavior of Multi-Ferroic Gd2CuO4 },
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2011},
            month = {jul},
            note = {PIRSA:11070074 see, \url{https://scivideos.org/index.php/pirsa/11070074}}
          }
          

Abstract

The magnetic properties of ceramic samples of Gd1.98R0.02CuO4 R= Ca Sr Th were studied and compared with Gd2CuO4. The results showed weak ferromagnetic ordering in all samples. We observed two magnetic ordering temperatures in the heat capacity measurement a sharp peak at TN(Gd) 6.5 K that can be attributed to the Neel temperature of Gd3+ ions and the second transition temperature at about 20 K that suggested to the magnetic interactions of Gd-Cu. The third anomaly was seen at TN(Cu)=280 K in susceptibility measurements. Investigations indicated that 0.02% mole substitution for Gd was not much effective on the transition temperature of compounds although we bserved significant change in the magnitude of heat Capacity susceptibility and magnetization of samples as well as their conductivities.