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Projects / Programmes source: ARIS

Oxide ceramic materials with the layered perovskite type structure

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Research activity

Code Science Field Subfield
2.09.01  Engineering sciences and technologies  Electronic components and technologies  Materials for electronic components 

Code Science Field
T153  Technological sciences  Ceramic materials and powders 
T170  Technological sciences  Electronics 
Keywords
ferroelectrics, lanthanum ruthenates, layered perovskites, Aurivillius-type phases, characterisation
Evaluation (rules)
source: COBISS
Evaluation of bibliographic research performance indicators according to ARIS methodology
Citations Citations for bibliographic records in COBIB.SI that are linked to records in citation databases
source: WoS source: Scopus source: COBISS
Researchers (2)
no. Code Name and surname Research area Role Period No. of publications
1.  19038  PhD Andreja Benčan Golob  Materials science and technology  Researcher  2003 - 2004  528 
2.  02627  PhD Marija Kosec  Electronic components and technologies  Head  2003 - 2004  1,494 
Organisations (1)
no. Code Research organisation City Registration number No. of publications
1.  0106  Jožef Stefan Institute  Ljubljana  5051606000  90,753 
Abstract
The interest for ferroelectric materials in different applications, foe example non-volatile memories, sensors and actuators is still growing. The majority of the contemporary ferroelectric materials with perovskite structure contain lead oxide. Due to ecological requirements the development of lead-free ferroelectrics with suitable characteristics is desired. Materials that can meet such requirements are ferroelectric-layered perovskites. Within the scope of this research some Aurivillius - structure - type ferroelectric compounds will be evaluated from the point of view of their crystal structure, electrical and magnetical properties, and possible applications as bulk and thin films. Electrodes for ferroelectric polarization layers are ordinary based on noble metals, for example platinum. However, problems such as fatigue in, for example, the case of ferroelectric films limit the use of noble metals electrodes. Potential electrode materials, which could be used instead of noble metals, are conductive oxide compounds. Electrodes based on ruthenium oxide or ruthenates significantly improve the polarization fatique. Synthesis and characterization (microstructure, crystal structure and electrical properties) of lanthanum ruthenates with low electrical resistivity, their compatibility with ferroelectric materials and characteristics of the layer structures of lanthanum ruthenates and the ferroelectric as the capacitor will be studied.
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