Electrical conductivity of amorphous silicon doped with rare-earth elements

1991 ◽  
Vol 43 (11) ◽  
pp. 8946-8950 ◽  
Author(s):  
J. H. Castilho ◽  
I. Chambouleyron ◽  
F. C. Marques ◽  
C. Rettori ◽  
F. Alvarez
Keyword(s):  
Electrical Conductivity ◽  
Rare Earth ◽  
Rare Earth Elements ◽  
Amorphous Silicon ◽  
Silicon Doped

New paramagnetic center in amorphous silicon doped with rare-earth elements

1989 ◽  
Vol 39 (4) ◽  
pp. 2860-2863 ◽  
Author(s):  
J. H. Castilho ◽  
F. C. Marques ◽  
G. E. Barberis ◽  
C. Rettori ◽  
F. Alvarez ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Amorphous Silicon ◽  
Paramagnetic Center ◽  
Silicon Doped

scholarly journals Solid solubility of rare earth elements (Nd, Eu, Tb) in In2−xSnxO3 – effect on electrical conductivity and optical properties

2014 ◽  
Vol 43 (25) ◽  
pp. 9620-9632 ◽  
Author(s):  
T. O. L. Sunde ◽  
M. Lindgren ◽  
T. O. Mason ◽  
M.-A. Einarsrud ◽  
T. Grande
Keyword(s):  
Electrical Conductivity ◽  
Optical Properties ◽  
Rare Earth ◽  
Rare Earth Elements ◽  
Band Gap ◽  
Solid Solubility ◽  
Wide Band ◽  
Wide Band Gap ◽  
Recent Interest ◽  
Wide Band Gap Semiconductors

Wide band-gap semiconductors doped with luminescent rare earth elements (REEs) have attracted recent interest due to their unique optical properties.

Thermal Defects in Silicon Doped with Rare-Earth Elements

1989 ◽  
Vol 112 (2) ◽  
pp. 561-568
Author(s):  
V. V. Petrov ◽  
V. S. Prosolovich
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Silicon Doped

Effect of Prior Deformation on Properties of Cu-Cr-RE Alloys

2011 ◽  
Vol 239-242 ◽  
pp. 1253-1259
Author(s):  
Zheng Hua Guo ◽  
Ge Wang Shuai ◽  
Ping Fang
Keyword(s):  
Electrical Conductivity ◽  
Rare Earth ◽  
Rare Earth Elements ◽  
Isothermal Aging ◽  
Aging Treatment ◽  
Alloying Element ◽  
Pinning Effect ◽  
Solution Treated ◽  
Rare Earth Intermetallic Compounds ◽  
Rare Earth Intermetallic

The variations of hardness and electrical conductivity of a deformed supersaturated Cu-Cr alloy have been investigated during isothermal aging. The influence of trace rare earth elements (La, Y or Nd) as a second alloying element was also studied. The results showed that the heavily deformed alloys exhibited an instant increase in both hardness and electrical conductivity due to an accelerated precipitation after a short aging treatment. Compared with the solution treated Cu-0.8wt %Cr-0.05wt. %La and Cu-0.8wt %Cr-0.05wt. %Y alloy, the as-cast Cu-0.8 wt. %Cr-0.05 wt. %Nd exhibited a retarded recrystallization which should be attributed to the pinning effect of primary Cr precipitates lying in the grain boundaries. Rare earth elements can act as a useful second alloying element to inhibit recrystallization of the deformed alloys due to the occurrence of some copper-rare earth intermetallic compounds and rare earth oxides.

scholarly journals Reasons for the High Electrical Conductivity of Bismuth Ferrite and Ways to Minimize It

2021 ◽  
Vol 11 (3) ◽  
pp. 1025
Author(s):  
Konstantin Andryushin ◽  
Vladimir Sakhnenko ◽  
Anatoliy Turik ◽  
Lidiya Shilkina ◽  
Alexey Pavelko ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Rare Earth ◽  
Rare Earth Elements ◽  
Composite Structure ◽  
Bismuth Ferrite ◽  
Redox Processes ◽  
High Electrical Conductivity ◽  
Boundary Position ◽  
Natural Composite

The reasons for the high electrical conductivity of bismuth ferrite due to its natural composite structure, structural non-stoichiometry, redox processes, and the boundary position in the perovskite family have been considered. It has been shown that it is possible to significantly (2–3 orders of magnitude) reduce the conductivity of BiFeO3 by introducing large-sized ions of rare-earth elements (REE: La, Pr, Nd, Sm, Eu, Gd with 0.94 ≤ R¯ ≤ 1.04 Å) in amounts of up to 10 mol %. An interpretation of the observed effects has been given. A consideration about the appropriateness of taking into account the presented results when developing devices using materials of the BiFeO3/REE type has been expressed.

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