<報文>四元系パラジウム硫化物ブロンズ Yb_yNd_<1-y>Pd_3S_4 および NdPd_3S_<4-x>Se_x の合成と結晶化学ならびに電気的性質

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The quaternary palladium sulfide bronzes Yb_yNd_<1-y>Pd_3S_4 and NdPd_3S_<4-x>Se_x were synthesized by heating the stoichiometric mixture of M_2S_3(M=Nd, Yb), Pd, S and Se in a sealed quartz ampoule at 1173K for 3 days. The lattice parameter of Yb_yNd_<1-y>Pd_3S_4 increased linearly with increasing y value between y=0 and 1.0. In the case of NdPd_3S_<4-x>Se_x, the lattice parameter showed linear increase from x=0.0 to 0.6 and the solubility of Se in NdPd_3S_<4-x>Se_x seemed to be around x=0.7. The specific resistivity, p of NdPd_3S_<4-x>Se_x (x=0.0,0.6,1.0) increased with increasing temperature from 15 to 300K showing that they are metallic. The p value of NdPd_3S_<4-x>Se_x increased with increasing x value.quaternary sulfideneodymium palladium bronzesynthesisytterbiumselenium
東北大学の論文
2001-03-01