Results 1 to 7 of about 18 (7)

Chap. 26 - Resistance Switching Effect in Octahedral framework oxide

Materials and Devices, 2022
Resistive Random-Access Memories (ReRAM) are an alternative way to create new memory devices. This is physically possible due to the existence in the material, of two resistive states clearly discreditable, as a function of voltage value and polarity ...
Yaovi GAGOU, B. Allouche, P. Saint-Gregoire, M. El Marssi   +3 more
doaj   +10 more sources

Structural and optical properties of Pb2KNb5O15 and GdK2Nb5O15 tungsten bronze thin films grown by pulsed laser deposition

Journal of Alloys and Compounds, 2017
Abstract Lead potassium niobate Pb 2 KNb 5 O 15 (PKN) and gadolinium potassium niobate GdK 2 Nb 5 O 15 (GKN) thin films were grown on (001)MgO single crystal substrates using pulsed laser deposition technique. PKN and GKN thin films were characterized by X-ray diffraction and their linear optical properties were determined.
Allouche, B., Gagou, Y., Zeinert, Andreas, Fremy, M. -A., El Marssi, Mimoun   +4 more
core   +4 more sources

Oxygen-deficient GdK ₂ Nb ₅ O ₁₅ ferroelectric epitaxial thin film

EPL (Europhysics Letters), 2016
The ferroelectric compound GdK2 Nb5 O15 (GKN) thin film with tetragonal-tungsten-bronze–type structure was grown by pulsed-laser deposition on (001)SrRuO3 /La0.5 Sr0.5 CoO3 /MgO substrate. Using X-ray diffraction analysis we demonstrate that the phase transition temperature in the GKN thin film was shifted to high temperatures due to substrate-induced
Allouche, B., Gagou, Y., Le Marrec, F., Fremy, M. -A., El Marssi, M.   +4 more
core   +3 more sources

Dielectric properties and relaxation phenomena in the diffuse ferroelectric phase transition in K

, 2012
Structural and dielectric properties of Potassium Lithium Niobate polycrystalline ceramic K3Li2Nb5O15 (KLN), having the tetragonal tungsten bronze (TTB) – type structure are studied in the temperature interval 50−550 °C.
Y. Gagou, I. Luk’yanchuk, Z. Abkhar, R. Elmoznine, D. Mezzane, A. Belboukhari, J. Belhadi, M. El Marssi   +7 more
core   +1 more source

Étude de composés à structure TTB en couches minces et multicouches

, 2015
Three compounds with Tetragonal Tungsten Bronze (TTB) type struc-ture were studied as thin films grown by Pulsed Laser Deposition from pure oxide ceramics. These compounds are Pb2KNb5O15 (PKN), GdK2Nb5O15 (GKN) and K3Li2Nb5O15 (KLN).
Allouche, Billal
core   +1 more source

Growth, electrical and optical properties, of TTB thin films and superlattices

, 2015
Trois composés de structure Bronze de Tungstène Quadratique ont été étudiés sous forme de couches minces élaborées par ablation laser. Il s'agit de Pb2KNb5O15 (PKN), GdK2Nb5O15 (GKN) et K3Li2Nb5O15 (KLN).
Allouche, Billal
core  

Resistive switching in a (00ℓ)-oriented GdK2Nb5O15 thin film with tetragonal tungsten bronze type structure

Superlattices and Microstructures, 2014
Abstract We have grown a single oriented GdK 2 Nb 5 O 15 ferroelectric thin film with tetragonal tungsten bronze (TTB) structure by pulsed laser deposition on SrRuO 3 /La 0.5 Sr 0.5 CoO 3 bi-buffered MgO substrate. GKN thin film exhibits a single phase and (0 0  l )-orientation with tall and narrow asperities.
B. Allouche, Y. Gagou, M.-A. Fremy, F. Le Marrec, M. El Marssi   +4 more
openaire   +1 more source