Spin and orbital disordering by hole doping in Pr1-xCaxVO3
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The crystals of the system Ti1−xVxSe2 (C ≤ x ≤ 0.05) undergo a second order structural phase transition. Electron diffraction studies show that the transition temperature decreases with progressive V-doping. The phase transition considerably affects the in ...
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We find that even very low Ni doping levels of high-quality Bi2Sr2Ca1Cu2O8 single crystals strongly affect the transition temperature T(c). We also observed that T(c) is not related to the total Ni concentration, but only to that of Ni engaged in NiO-type ...
We have carried out high-resolution photoemission experiments on two quasi-one-dimensional compounds: K0.3MoO3 and (TaSe4)2I. In both systems, a metal-insulator transition associated with a lattice distortion is reported. We show that the Fermi-step charac ...
The crystal and molecular structure of dinitrato(1,7,10,16‐tetraoxa‐4,13‐diazacyclooctadecane)europium(III) nitrate, ([Eu(NO3)2(C12H26N2O4)]NO3) has been determined from single‐crystal X‐ ray diffraction: a = 12.567(3), b = 11.585(3), c = 16.354(5) Å, β = ...
Pressure-induced amorphization has already been observed in some framework silicates like quartz and feldspars. A similar crystal to highly disordered solid transition is reported in this study fora zeolite named scolecite, which is the calcium end-member ...
High-resolution angle-resolved photoemission measurements were performed on single crystals of Bi2Sr2Ca1Cu2O8+delta with different oxygen stoichiometries. The data establish that the gap anisotropy (ratio of the gap along T-M to the gap along T-X) can be r ...
Iodine intercalation in Bi2Sr2CaCu2Oy crystals enables one to modify the critical temperature, T(c), of the superconducting phase, and to obtain a semiconductor phase. This doping drastically changes the size of the unit cell. A photoemission spectroscopy ...
The thermal reaction Of Ru3(CO)12 with (+/-) 7-oxabicyclo[2.2.1]hept-5-en-2-one (+/-)-2, (+/-) 7-oxabicyclo[2.2.1]hept-5-en-2-endo-ol 21 and the corresponding benzoate 22 afforded the [Ru3H2(CO)9 (7-oxabicyclo[2.2.1]hept-5-yn-2-yl)] clusters 13, 19 and 20, ...
