Magnetic susceptibility and electrical resistivity of some Th2Zn17-type rare-earth zinc phases |
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| Institution: | 1. National Research Centre “Kurchatov Institute”, B. P. Konstantinov Petersburg Nuclear Physics Institute, 188300 Gatchina, Russia;2. Institute of Polymer Materials, Department of Materials Science, Friedrich-Alexander University Erlangen-Nürnberg, Martensstrasse 7, D-91058 Erlangen, Germany;3. European Synchrotron Radiation Facility, 71, Avenue des Martyrs, CS40220, F-38043 Grenoble Cedex 9, France;4. Department of Physics and Astronomy, Uppsala University, Box 516, 751 20 Uppsala, Sweden |
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| Abstract: | We report measurements of the magnetic susceptibility and electrical resistivity of the iostructural compounds RE2Zn17 (RE=La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu). The composition dependence of the lattice parameter and effective moment indicate that all the RE ions are trivalent except Yb which is divalent. Magnetic order is observed in compounds where RE=Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho and Er. A second transition is seen for RE=Pr, Ho, Sm and Tb. Superzone boundary effects are observed in the electrical resistivity of these four alloys as well as in Er2Zn17. Resistivity measurements reveal concentrated Kondo behavior (or 4f instability) of Ce in Ce2Zn17. |
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