1995/10/15 by Yukio Yasui, Takashi Nishikawa, Yoshiaki Kobayashi +3 · 1 citation
Materials Science · Physics and Astronomy · #Magnetic and transport properties of perovskites and related materials #Electronic and Structural Properties of Oxides #Advanced Condensed Matter Physics
paper · doi:10.1143/jpsj.64.3890
Transport and magnetic measurements including the magnetic resonance of 51 V nuclei have been carried out for misfit-layer compounds (La 1- y R y S) 1+α VS 2 (R=Sr and Pb, 0≤ y ≤1.0). The results indicate that the system is in the Mott insulating state at high temperatures, at least in the y region near α/(1+α) which corresponds to the V-valency of +3. It undergoes a transition with decreasing temperature possibly to a nonmagnetic ground state. With increasing carrier doping into this insulating state, the system tends to become metallic and an essentially metallic state is realized in the hole-doped region \(0.30 \mbox\raisebox-0.4em\)\stackrel< ∼\( x ≡ y(1+α )<0.5\), where various properties are found to exhibit anomalous behavior similar to the case of high- T c Cu-oxides.