145172 20241003094705.0 doi 10.1103/PhysRevLett.98.166406 sideral 62044 ART-2007-62044 eng Marcano, N. (orcid)0000-0002-5331-9758 Mesoscopic Magnetic States in Metallic Alloys with Strong Electronic Correlations: A Percolative Scenario for CeNi1-xCux 2007 We present evidence for the existence of magnetic clusters of approximately 20 Å in the strongly correlated alloy system CeNi1−⁢Cu (0.7≤≤0.2) based on small angle neutron scattering experiments as well as the occurrence of staircaselike hysteresis cycles at very low temperature (100 mK). An unusual feature is the observation of long-range ferromagnetic order below the cluster-glass transition without any indication of a sharp transition at a Curie temperature. These observations strongly support a phenomenological model where a percolative process connects both magnetic states. The model can account for all the puzzling data previously obtained in this system, providing a new perspective with regard to the magnetic ground state of other alloyed compounds with small magnetic moments or weak ferromagnetism with intrinsic disorder effects. Access copy available to the general public Unrestricted info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 6.944 2007 PHYSICS, MULTIDISCIPLINARY 5 / 68 = 0.074 2007 Q1 T1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Gomez Sal, J. C. Espeso, J. I. De Teresa, J. M. (orcid)0000-0001-9566-0738 Algarabel, P. A. (orcid)0000-0002-4698-3378 Paulsen, C. Iglesias, J. R. 98, 16 (2007), 2158-2169 Phys. rev. lett. Physical Review Letters 0031-9007 654861 http://zaguan.unizar.es/record/145172/files/texto_completo.pdf Postprint 3152725 http://zaguan.unizar.es/record/145172/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:145172 articulos driver 2024-10-03-08:56:23 ARTICLE