WorldCat Identities

Karkut, Michael (1948-....).

Overview
Works: 5 works in 11 publications in 2 languages and 12 library holdings
Genres: Academic theses 
Roles: Thesis advisor, Author, Other
Publication Timeline
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Most widely held works by Michael Karkut
Upper critical fields and superconducting transition temperatures of amorphous Zr-base transition-metal alloys by Michael Gordon Karkut( )

2 editions published in 1982 in English and held by 3 WorldCat member libraries worldwide

Proceedings of Fourth Franco-Ukrainian Meeting on Ferroelectricity (FUMF-4) and Seventh French Workshop on Ferroelectric Thin Films (FTF-7) ; Amiens, France, November 22-24, 2006 by Franco-Ukrainian Meeting on Ferroelectricity( Book )

3 editions published in 2008 in English and held by 3 WorldCat member libraries worldwide

CROISSANCE, ETUDE STRUCTURALE ET SPECTROSCOPIE RAMAN DE FILMS MINCES ET SUPER-RESEAUX D'OXYDES FERROELECTRIQUES BASES SUR PBTIO 3 ET BATIO 3 by FRANCOISE LE MARREC( Book )

2 editions published in 2000 in French and held by 2 WorldCat member libraries worldwide

CE TRAVAIL A CONSISTE A ELABORER PAR ABLATION LASER, A ETUDIER ET COMPRENDRE LES PROPRIETES ESSENTIELLEMENT STRUCTURALES DES FILMS MINCES ET SUPER-RESEAUX D'OXYDES FERROELECTRIQUES BASES SUR PBTIO 3 ET BATIO 3. POUR CE FAIRE, NOUS AVONS UTILISE LES TECHNIQUES COMPLEMENTAIRES DE DIFFRACTION DE RAYONS X ET DE SPECTROSCOPIE RAMAN QUI PERMETTENT DE DETERMINER LA STRUCTURE DES FILMS MINCES ET DES SUPER-RESEAUX, D'ESTIMER LEUR ETAT DE CONTRAINTE ET METTRE EN EVIDENCE LES TRANSITIONS DE PHASE STRUCTURALES. DANS UN PREMIER TEMPS, NOUS AVONS ETUDIE L'INFLUENCE DE L'EPAISSEUR DES FILMS ET L'EFFET DU DESACCORD PARAMETRIQUE ENTRE LE SUBSTRAT (SRTIO 3 ET MGO) ET LE FILM SUR LA QUALITE CRISTALLINE ET SUR LA STRUCTURE EN DOMAINES DE PBTIO 3 ET BATIO 3. NOUS AVONS MONTRE EN PARTICULIER QUE L'INTRODUCTION D'UNE COUCHE TAMPON DE SRTIO 3 ENTRE PBTIO 3 ET MGO AMELIORE LA QUALITE CRISTALLINE DU FILM MINCE ET PROVOQUE UNE AUGMENTATION DE LA TEMPERATURE DE TRANSITION DE PHASE (505\C) PAR RAPPORT AU MATERIAU MASSIF (490\C). EN REVANCHE, BATIO 3 DEPOSE DIRECTEMENT SUR MGO PRESENTE VERS 150\C, EN DEPIT D'UNE STRUCTURE CUBIQUE, UNE DEVIATION A LA LINEARITE DU PARAMETRE DE MAILLE QUE L'ON A ATTRIBUE A DES DEFORMATIONS LOCALES LIEES A LA NUCLEATION DE REGIONS POLAIRES DE PETITES TAILLES NON CORRELEES ENTRE ELLES. DANS UN SECOND TEMPS, NOUS AVONS ELABORE SUR MGO TAMPONNE AVEC SRTIO 3, UNE SERIE DE SUPER-RESEAUX FERROELECTRIQUES (PTO / 2/BTO / 2) EPITAXIES DONT LA PERIODICITE VARIE DE 51A A 357A. NOUS AVONS MONTRE, CONTRE TOUTE ATTENTE, QUE LA DIRECTION CRISTALLOGRAPHIQUE DE CROISSANCE POUR PBTIO 3 EST L'AXE A. PAR AILLEURS, A L'INSTAR DES SUPER-RESEAUX SEMICONDUCTEURS, NOUS AVONS MIS EN EVIDENCE PAR DIFFUSION RAMAN DES MODES CONFINES DANS LES COUCHES DE PBTIO 3. ENFIN, LES ETUDES EN FONCTION DE LA TEMPERATURE ONT MONTRE QUE PBTIO 3 EN SUPER-RESEAU NE SUBIT PAS DE TRANSITION DE PHASE, CONTRAIREMENT EN FILM MINCE ALORS QUE BATIO 3, SELON TOUTE VRAISEMBLANCE, SUBIT UNE TRANSITION VERS 150\C
Contrôle de la structure en domaines dans des super-réseaux ferroélectriques bicolores et tricolores by Cécile Hubault( Book )

2 editions published in 2011 in French and held by 2 WorldCat member libraries worldwide

The aim of this work has been to study the domain structure in bicolour and tricolour superlattices based on PbTiO3, PbZr1-xTixO3 PZT: PbZr0,2Ti0,8O3 and PbZr0,1Ti0,9O3) and SrTiO3. The samples were grown by pulsed laser deposition and the ferroelectric domain structure was studied by X-ray diffraction, transmission electron microscopy, and atomic force microscopy in the piezoresponse mode. For each family of superlattices, the superlattice parameters were adjusted to modify the mechanical strains and to determine their effects on the domain structure. In the bicolour superlattices PbTiO3/ PbZr0,2Ti0,8O3, mechanical strain is relaxed by 90° domain formation. We have demonstrated that this relaxation can be suppressed if the superlattice period and the sample thickness are below certain critical values. In addition we show that the stabilization of the monodomain structure is more favourable when the mismatch between PbTiO3 and PbZr1-xTixO3 diminishes as demonstrated by our results on PbTiO3/ PbZr0,1Ti0,9O3 superlattices. In the tricolour superlattices PbTiO3/SrTiO3/PbZr1-xTixO3, we have shown that a depolarization field exists in the ferroelectric materials induced by the 1 nm in thickness SrTiO3 layers. In the PbTiO3/PbZr0,2Ti0,8O3 superlattices, we have demonstrated that this depolarization field suppress the 90° domain structure and induces the formation of a 180° domain structure
 
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Associated Subjects
Alternative Names
Karkut, M.

Karkut, M. G.

Karkut, Michael.

Karkut, Michael 1948-

Karkut, Michael G.

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