The effect of shell layer on magnetic, transport, and electrochemical properties of La0.7Sr0.3MnO3 nanoparticles

Author(s):  
Kumar Navin ◽  
Rajnish Kurchania
RSC Advances ◽  
2018 ◽  
Vol 8 (33) ◽  
pp. 18589-18596 ◽  
Author(s):  
Kai Cao ◽  
Kangping Wang ◽  
Taotao Shen ◽  
Wenlou Wang ◽  
Dongming Chen

An ultra-thin spinel Li4Mn5O12 shell layer on the surface of lithium-rich oxide particles was investigated.


2015 ◽  
Vol 8 (2) ◽  
pp. 2084-2093 ◽  
Author(s):  
PROLOY TARAN DAS ◽  
Arun Kumar Nigam ◽  
Tapan Kumar Nath

Nano-dimensional effects on electronic-, magneto-transport properties of granular ferromagnetic insulating (FMI) Pr0.8Sr0.2MnO3 (PSMO) manganite (down to 40 nm) have been investigated in details. From the electronic and magnetic transport properties, a metallic state has been observed in grain size modulation by suppressing the ferromagnetic insulating state of PSMO bulk system. A distinct metal-insulator transition (MIT) temperature around 150 K has been observed in all nanometric samples. The observed insulator to metallic transition with size reduction can be explained with surface polaron breaking model, originates due to enhanced grain surface disorder. This proposed phenomenological polaronic model plays a significant role to understand the polaronic destabilization process on the grain surface regime of these phase separated nano-mangnatie systems. Temperature dependent resistivity and magnetoresistance data in presence of external magnetic fields are investigated in details with various compatible models.


2020 ◽  
Author(s):  
Thomas Baumgartner ◽  
Paul Demay-Drouhard

The unexpectedly challenging synthesis of 4-pyridyl-extended dithienophospholes is reported. The optical and electrochemical properties of the phosphoryl-bridged species were studied experimentally and computationally, and their properties compared to their non-<i>P</i>-bridged congeners. The 4-pyridyl-extended dithieno-phospholes display quantitative luminescence quantum yields in solution.<br><br>


2020 ◽  
Author(s):  
Thomas Baumgartner ◽  
Paul Demay-Drouhard

The unexpectedly challenging synthesis of 4-pyridyl-extended dithienophospholes is reported. The optical and electrochemical properties of the phosphoryl-bridged species were studied experimentally and computationally, and their properties compared to their non-<i>P</i>-bridged congeners. The 4-pyridyl-extended dithieno-phospholes display quantitative luminescence quantum yields in solution.<br><br>


2016 ◽  
Vol 15 (5) ◽  
pp. 955-963 ◽  
Author(s):  
Corneliu Munteanu ◽  
Bogdan Istrate ◽  
Daniel Mareci ◽  
Sergiu Stanciu ◽  
Carmen-Iulia Crimu ◽  
...  

2014 ◽  
Vol 13 (8) ◽  
pp. 1987-1995 ◽  
Author(s):  
Liviu-Virgil Costea ◽  
Gunter Fafilek ◽  
Hermann Kronberger

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