Susceptibilite magnetique des composes ternaires TCu2Ge2(T = Gd,Tb,Dy,Ho,Er,Tm) |
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Authors: | P A Kotsanidis J K Yakinthos |
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Institution: | Democritos University of Thrace, Faculty of Engineering, Department of Physics, Xanthi, Greece |
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Abstract: | Susceptibility measurements are performed on the tetragonal TCu2Ge2 ternary compounds in the temperature range 4.2–200 K under a constant magnetic field of 5 KOe. The compounds with T = Gd,Tb,Dy and Ho are antiferromagnetic with Néel temperatures 12,15,8 and 6.4 K respectively. The compounds with T=Er and Tm do not show any ordering temperature down to 4.2 K. The temperature dependence of the reciprocal susceptibility of all compounds follows a Curie-Weiss law. The paramagnetic Curie temperatures for all compounds are negative. |
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