Magnetic and Transport Properties of R3Cu3Sb4 Compounds (R = La, Ce, Pr, Nd, and Sm) |
| R. Skolozdraa, M. Baranb, A. Horyna, A. Szewczykb, Yu. Gorelenkoa, H. Szymczakb and R. Szymczakb aChemistry Department, Ivan Franko Lviv National University, Kyryla and Mefodia str. 6, 79005 Lviv, Ukraine bInstitute of Physics, Polish Academy of Sciences al. Lotników 32/46, 02-668 Warszawa, Poland |
| Received: March 26, 2002; revised version June 12, 2002 |
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| Magnetic susceptibility, electrical resistivity, and thermopower of the series of the R3Cu3Sb4 compounds (R=La-Sm) were measured over the temperature ranges 1.9--300 K (susceptibility and resistivity) and 80--370 K (thermopower). Below 25 K, resistivity of these compounds grows exponentially with decreasing temperature. For some compounds, R = Ce, Sm, a maximum on temperature dependence of resistivity is observed. Ce3Cu3Sb4 compound undergoes a magnetic transition at 12 K. |
| DOI: 10.12693/APhysPolA.102.429 PACS numbers: 72.15.--v, 72.20.--i, 72.15.Jf, 75.30.Cr |