Pressure Dependence of Electrical Resistivity in Intercalation Compounds M_xTiS₂ (M = 3d Transition Metal)

Abstract

Electrical resistivities of intercalation compounds of M,TiS, (M = Mn, Fe, Co, and Ni; x = 0.05) with the 1T-Cd1,-type layered structure are measured under hydrostatic pressure up to 15 X lo8 Pa over the temperature range 1.7 to 300 K. The resistivity change with pressure a t room temperature and the temperature dependence a t constant pressure are strongly dependent on the guest 3d metals. These experimental results can be explained by taking account of the pressure dependences of the residual resistivity, as well as the temperature-dependent intra-and intervalley scatterings by acoustic phonons.Der elektrische Widerstand der Interkalate von MzTiS2 (M = Mn, Fe, Co, und Ni; x = 0,05) mit 1 T-CdJ,-Schichtstrukturen werden unter hydrostatischenDrucken bis 15 x 1OsPa beiTemperaturen von 1,7 bis 300 K gemessen. Die Widerstandsanderung mit dem Druck bei Zimmertemperatur und die Temperaturabhangigkeit unter konstantem Druck sind stark abh&ngig vom 3d-Gastmetall. Diese experimentellen Ergebnisse konnen unter Beriicksichtigung der Druckabhangigkeit des Restwiderstands sowie der temperaturabhangigen ,,Intra-und Intervalley"-Streuung durch akustische Phononen erklirt werden.

Effect of Pressure on Lattice Parameters of Intercalation Compounds MxTiS2 (M = Fe and Ni)

“…In order to get further insight into the structural properties of the intercalation compounds M,TiS,, in the present work we have measured the lattice parameters a and c for host TiS,, Fe,TiS,, and Ni,TiS, (z = 0.05 and 0.25) under hydrostatic pressures up to 1.2 GPa a t room temperature using a diamond anvil cell. The results of the electrical resistivity measurements up to 1.2 GPa for TiS, and Mo,05TiS, (M = = Mn, Fe, Co, and Ni) have been reported previously [ 5 ] . l) Higashisenda, Naka-ku, Hiroshima 730, Japan.…”

“…The results of the electrical resistivity measurements up to 1.2 GPa for TiS, and Mo,05TiS, (M = = Mn, Fe, Co, and Ni) have been reported previously [ 5 ] . l) Higashisenda, Naka-ku, Hiroshima 730, Japan.…”

High-pressure study of transport properties in Co0.33NbS2

“…It may be noted however, that effect has not been observed in the sister compound, M 0.05 TiS 2 (M=Co, Fe, Ni) where the usual decrease of resistivity with pressure was observed. 37 The reason may lie in the much lower concentration of magnetic ions in the latter case. The lower concentration implies lower scattering rate on spin-disorder at high temperature, as well as the absence of the magnetic superstructure at low temperature.…”