Electrical transport properties of the rare-earth ion substituted (Ti, Ps)Sr1.6Ba0.4(Ca0.8R0.2)Cu2Ox superconducting system

1993 ◽  
Vol 214 (3-4) ◽  
pp. 286-290 ◽  
Author(s):  
Q. Hong ◽  
Jui H. Wang
Keyword(s):  
Rare Earth ◽  
Transport Properties ◽  
Electrical Transport ◽  
Electrical Transport Properties ◽  
Rare Earth Ion ◽  
The Rare Earth

STUDIES OF TRANSPORT PROPERTIES OF RFe1-xNixO3 (x ≤ 0.5) WHERE R = Nd, Sm AND Gd

2011 ◽  
Vol 25 (21) ◽  
pp. 1787-1794 ◽  
Author(s):  
ABIDA BASHIR ◽  
MOHD IKRAM ◽  
RAVI KUMAR
Keyword(s):  
Transport Properties ◽  
Electrical Transport ◽  
Variable Range Hopping ◽  
Electrical Transport Properties ◽  
Rare Earth Ion ◽  
Ni Substitution ◽  
Gap Parameter ◽  
Hopping Model ◽  
Variable Range Hopping Model ◽  
Semiconducting Behavior

We present here the electrical transport properties of RFe 1-x Ni x O 3 (x ≤ 0.5) where R = Nd , Sm and Gd and the correlation between these systems. The resistivity increases as the rare ion is changed from Nd to Sm . The resistivity increases from the magnitude of the order of 103 to 106 Ωcm at lower temperatures and from 10 to 105 Ωcm as the temperature is increased. Also, the resistivity decreases as the concentration of Ni is increased within the ensemble showing a semiconducting behavior. The resistivity data is fitted with the Greaves Variable Range Hopping model which fits in the intermediate range of temperatures. There is decrease in gap parameter, increase in conductivity and increase in the density of states at Fermi level which clarify that the correlation length in the conducting network increases with the increase in Ni substitution. The Debye temperature decreases as the Ni concentration increases and follows the same trend as the rare earth ion is replaced.

Crystal structure, magnetic and electrical-transport properties of rare-earth-doped Sr2FeMoO6

2006 ◽  
Vol 381 (1-2) ◽  
pp. 233-238 ◽  
Author(s):  
Q. Zhang ◽  
G.H. Rao ◽  
Y.G. Xiao ◽  
H.Z. Dong ◽  
G.Y. Liu ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Rare Earth ◽  
Transport Properties ◽  
Electrical Transport ◽  
Electrical Transport Properties ◽  
Rare Earth Doped

Synthesis, magnetic, optical, and electrical transport properties of the nanocomposites of polyaniline with some rare earth chlorides

2010 ◽  
Vol 108 (7) ◽  
pp. 073701 ◽  
Author(s):  
K. Gupta ◽  
G. Chakraborty ◽  
S. Ghatak ◽  
P. C. Jana ◽  
A. K. Meikap ◽  
...  
Keyword(s):  
Rare Earth ◽  
Transport Properties ◽  
Electrical Transport ◽  
Electrical Transport Properties

Effect of Rare-Earth Doping on Magnetic and Electrical Transport Properties of Nanoparticle Mn–Zn Ferrite

2016 ◽  
Vol 22 (4) ◽  
pp. 773-779 ◽  
Author(s):  
A D’souza ◽  
M Deepak Kumar ◽  
M Chatim ◽  
V Naik ◽  
Pranav P Naik ◽  
...  
Keyword(s):  
Rare Earth ◽  
Transport Properties ◽  
Electrical Transport ◽  
Rare Earth Doping ◽  
Electrical Transport Properties ◽  
Zn Ferrite
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