Phase inhomogeneity and inapplicability of Jeff=0 description in dilute Ir5+ doped Ba2YSb1−xIrxO6 (x=0.1, 0.2, 0.3)

2021 ◽  
Vol 104 (21) ◽  
Author(s):  
Md Salman Khan ◽  
Carlo Meneghini ◽  
Fabrice Bert ◽  
M. Moretti Sala ◽  
Sugata Ray
Keyword(s):  
1993 ◽  
Vol 49 (s1) ◽  
pp. c278-c278
Author(s):  
D. D. Nihtianova ◽  
S. S. Angelova ◽  
L. K. Djonev ◽  
L. L. Petrov ◽  
K. P. Petrov
Keyword(s):  

2009 ◽  
Vol 615-617 ◽  
pp. 577-580 ◽  
Author(s):  
Irina P. Nikitina ◽  
Konstantin Vassilevski ◽  
Alton B. Horsfall ◽  
Nicolas G. Wright ◽  
Anthony G. O'Neill ◽  
...  

Nickel silicide Schottky contacts were formed on 4H-SiC by consecutive deposition of a titanium adhesion layer, 4 nm thick, and nickel, 100 nm thick, followed by annealing at temperatures from 600 to 750 °C. It was found that contacts with barrier heights of 1.45 eV, consisting mainly of NiSi phase, formed in the 600-660 °C temperature range, while annealing at around 750 °C led to the formation of Ni2Si phase with barrier heights of 1.1 eV. Annealing at intermediate temperatures resulted in the nucleation of Ni2Si grains embedded in the NiSi film which were directly observed by micro-Raman mapping. It was concluded that the thermodynamically unfavourable NiSi phase appeared in the 600-660 °C temperature range due to the fact that the solid state chemical reaction between Ni and SiC at these temperatures is controlled by nickel diffusion through the titanium barrier.


1994 ◽  
Vol 9 (11) ◽  
pp. 2878-2883 ◽  
Author(s):  
Un-Sig Min ◽  
James C.M. Li

Porous copper was produced by electrolytic dealloying of a Cu-Mn alloy (Incramute: Cu, 40-48 wt. % Mn, 1.4-2.3 wt. % Al) conducted in a 0.3 N-NaCl solution at a potential of −0.2 V (SCE). The dealloying time needed for the as-received cold-rolled specimen (50 h) is shorter than that of the annealed specimen (850 °C for 2 h). The pore size, about 1 μm, of the dealloyed cold-rolled specimen is bigger than that, about 0.1 μm, of the dealloyed specimen after annealing. This is probably because annealing reduced the phase inhomogeneity and removed the rolling effects.


Sign in / Sign up

Export Citation Format

Share Document