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The highest antiferromagnetic (AFM) temperature in Ce based compounds hasbeen reported for CeScGe with Tn=47K, but its local or itinerant nature was notdeeply investigated yet. In order to shed more light into this unusually highordering temperature we have investigated structural, magnetic, transport andthermal properties of CeTi{1-x}Sc{x}Ge alloys within the range of stability ofthe CeScSi-type structure: 0.25<x<1. Along this concentration range, thisstrongly anisotropic system presents a complex magnetic phase diagram with acontinuous modification of its magnetic behavior, from ferromagnetism (FM)for0.25<x<0.50 (with 7K<Tc<16K) to AFM for 0.60<x<1 (with 19K<Tn<47K). The onsetof the AFM phase is associated to a metamagnetic transition with a criticalfield increasing from H{cr}=0 at x~0.55 to ~6Tesla at x=1, coincident with anincreasing contribution of the first excited crystal electric field doublet. Ata critical point x{cr}=0.65 a second transition appears at Tl<Tn. In contrastto observations in itinerant systems like CeRh{2}Si{2} or CeRh{3}B{2}, noevidences for significant hybridization of the 4f electrons at large Sccontents were found. Therefore, the exceptionally large Tn of CeScGe can beattributed to an increasing RKKY inter-layer interaction as Sc content grows.

Local character of the highest antiferromagnetic Ce-system CeTi{1-x}Sc{x} Ge