scholarly journals Conductivity noise study of the insulator-metal transition and phase coexistence in epitaxial samarium nickelate thin films

2014 ◽  
Vol 90 (8) ◽  
Author(s):  
Anindita Sahoo ◽  
Sieu D. Ha ◽  
Shriram Ramanathan ◽  
Arindam Ghosh
APL Materials ◽  
2020 ◽  
Vol 8 (12) ◽  
pp. 121103
Author(s):  
W. Griggs ◽  
B. Eggert ◽  
M. O. Liedke ◽  
M. Butterling ◽  
A. Wagner ◽  
...  

2018 ◽  
Vol 65 (12) ◽  
pp. 5448-5452 ◽  
Author(s):  
Ao Chen ◽  
Guokun Ma ◽  
Yuli He ◽  
Qin Chen ◽  
Chunlei Liu ◽  
...  

1999 ◽  
Vol 562 ◽  
Author(s):  
N. N. Mateeva ◽  
P. C. Hogan ◽  
K. H. Dahmen

ABSTRACTThin films of lanthanum manganates doped with Ca2+, Sr2+, Ba2+ and Pb2+ have been deposited on Si(100) substrate and their electrical and magnetic properties were discussed with respect to the composition, structure and nature of the dopant. Buffer layers of YSZ and La0.8Al0.2O3 were employed and their effect on the materials was studied. Interesting magnetotransport properties were found in some of the films, where there is a large difference between the insulator-metal transition temperature and a ferromagnetic transition temperature.


2020 ◽  
Vol 257 (6) ◽  
pp. 1900785
Author(s):  
Tiantian Huang ◽  
Shuxia Wang ◽  
Wei Wei ◽  
Yan Yang ◽  
Wanli Yang ◽  
...  

2018 ◽  
Vol 24 (S1) ◽  
pp. 184-185 ◽  
Author(s):  
Everett D. Grimley ◽  
Sam Frisone ◽  
Tony Schenk ◽  
Min Hyuk Park ◽  
Chris M. Fancher ◽  
...  
Keyword(s):  

1999 ◽  
Vol 13 (29n31) ◽  
pp. 3786-3791 ◽  
Author(s):  
R. CAURO ◽  
J. C. GRENET ◽  
A. GILABERT ◽  
M. G. MEDICI

We report, for the first time, experiments of persistent photoconductivity (PPC) in thin films of manganese perovskites La 0.7 Ca 0.25 Ba 0.05 MnO 3 and La 0.7 Ca 0.2 Ba 0.1 MnO 3 showing a persistent decrease of a few percent of the resistance after illumination with visible light. These persistent photoinduced effects are seen only in a range of low temperatures (<25 K) well below the insulator-metal transition at respectively T c=173 K and T c=120 K. In this low temperature range, the transport mechanism is rather of activated hopping type regime.


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