Shastry-Sutherland phase formation in magnetically frustrated Ce2Pd2In1-xSnx alloys

Taking profit that the ternary indides Ce2+epsilon Pd2-epsilon In form two branches of solid solutions allowing to access to ferromagnetic (FM, epsilon > 0) or anti-ferromagnetic (AFM, epsilon < 0) ground states depending on the relative Ce/Pd concentration 'epsilon', we have tested the possibility of a Shastry-Sutherland phase formation by electron doping the trivalent In lattice with tetravalent Sn. Starting from the AFM, epsilon < 0 side provides the lowest electron concentration conditions increasing the sensitivity to electron doping. For such a purpose low temperature thermal and magnetic properties were investigated on Ce2+epsilon Pd2-epsilon In1-xSnx alloys within the 0 <= x <= 0.6 range of concentration. (C) 2019 Elsevier Ltd. All rights reserved.