Magnetic susceptibilities and knight shifts of the intermetallic compounds NdCu4 and NdCu5 |
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| Authors: | Iuliu Pop Elana Rus Olivia Pop |
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| Institution: | Physics Department, Cluj-Napoca University, 3400 Cluj, Napoca, Romania |
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| Abstract: | The magnetic susceptibility and Knight shift of the intermetallic compounds NdCu4 and NdCu5 were investigated over the temperature range 80–850 K. The most important contributions to the magnetic susceptibility are the Curie-Weiss term, expressing the paramagnetism of the localized 4?-electrons, and a temperature independent term, both of which have been determined. The phenomenological quantity Js? between the 4?-electron and conduction electron spins was found to be ?2.46.10?3eV for NdCu4 and 1.35.10?3 eV for NdCu5. A reversal in the sign of the s-? coupling for CeCu5 was noted. |
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