Nanostructured Manganite Films as Protectors Against Fast Electromagnetic Pulses

The effects of strong electric fields on the resistivity of thin nanostructured La-Ca(Sr)-Mn-O films, deposited on lucalox substrates by the metal-organic chemical vapor deposition technique, are investigated using electrical pulses with a pulselength of 5 ns and an amplitude of up to 500 V. The inf...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on plasma science 2013-10, Vol.41 (10), p.2890-2895
Main Authors: Zurauskiene, Nerija, Balevicius, Saulius, Zurauskaite, Laura, Kersulis, Skirmantas, Stankevic, Voitech, Tolvaisiene, Sonata
Format: Article
Language:English
Subjects:
Chemical vapor deposition
Conductivity
Electric fields
Electromagnetism
Electroresistance
intentional electromagnetic interference (IEMI)
Limiting
manganites
Nanoparticles
Plasma physics
Plasma temperature
Power transmission lines
protectors against electromagnetic pulses (EMPs)
Resistance
strong electric field effects
Substrates
Temperature
Temperature measurement
Thin films
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The effects of strong electric fields on the resistivity of thin nanostructured La-Ca(Sr)-Mn-O films, deposited on lucalox substrates by the metal-organic chemical vapor deposition technique, are investigated using electrical pulses with a pulselength of 5 ns and an amplitude of up to 500 V. The influence of the chemical composition of these films is analyzed to determine the optimal conditions for their use as protectors against fast electromagnetic pulses (EMPs) when operating at the temperature of liquid nitrogen as well as at room temperatures. It is shown that by changing the doping material (using Ca instead of Sr), it is possible to reduce the threshold voltage in these films and to obtain better limiting characteristics at lower amplitudes of such pulsed electric fields.
ISSN:0093-3813
1939-9375
DOI:10.1109/TPS.2013.2269480