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μSR study of RNi5 intermetallics where R=La,Gd or Tb |
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| Authors: | P Dalmas de Réotier J P Sanchez A Yaouanc S W Harris O Hartmann E Karlsson R Wäppling D Gignoux B Gorges D Schmitt Ph L'Héritier A Weidinger P C M Gubbens |
| Institution: | (1) DRF, Service de Physique, MDIH, CENG, 85X, F-38041 Grenoble-Cedex, France;(2) Dept. of Physics, University of Uppsala, Box 530, S-751 21 Uppsala, Sweden;(3) Laboratoire L. Néel, CNRS, 166X, F-38042 Grenoble-Cedex, France;(4) INPG/ENSPG, F-38042 Saint Martin d'Hères-Cedex, France;(5) Hahn-Meitner Institut Berlin, D-1000 Berlin 39, Germany;(6) Interfaculty Reactor Institute, 2629 JB Delft, The Netherlands |
| Abstract: | Zero-field μSR studies of some hexagonal intermetallic compounds are described. Our LaNI5 data provide information on the muon localisation site. This site could be one of the deuterium sites deduced from neutron diffraction. A comparison of the temperature dependence of the exponential damping rate, λ(T), of our samples shows that λ(T) is strongly influenced by crystal field effects. The TbNi5 spectra exhibit two components forT<60 K. We discuss the possible explanations of this result. We see a μSR signal below the magnetic phase transition in GdNi5. This makes the study of the spin-lattice relaxation rate possible in the ordered magnetic state. |
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