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Contribution A Letude Des Proprietes Electriques Des Monocristaux De Phtalocyanine
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Book Synopsis Contribution à l'étude des propriétés électriques des monocristaux de phtalocyanine by : Philippe F. Devaux
Download or read book Contribution à l'étude des propriétés électriques des monocristaux de phtalocyanine written by Philippe F. Devaux and published by . This book was released on 1969 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis CONTRIBUTION A L'ETUDE DE COUCHES MINCES DE PHTALOCYANINES REDUITES by : Raymond Even
Download or read book CONTRIBUTION A L'ETUDE DE COUCHES MINCES DE PHTALOCYANINES REDUITES written by Raymond Even and published by . This book was released on 1983 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: MISE AU POINT D'UNE METHODE GENERALE DE PREPARATION DE COUCHES MINCES PAR COEVAPORATION DANS UNE ENCEINTE A VIDE DE PHTALOCYANINES AVEC LES METAUX ALCALINS. LES MESURES D'ABSORPTION ELECTRONIQUE ET DES COURANTS D'OBSCURITE ONT MIS EN EVIDENCE LA REDUCTION DES PHTALOCYANINES A L'ETAT SOLIDE QUI S'ACCOMPAGNE D'UNE AUGMENTATION IMPORTANTE DE LEUR CONDUCTIVITE. OBSERVATION D'UN REGIME DE COURANTS NON-OHMIQUE A TENSION ELEVEE. LES COUCHES POLYCRISTALLINES REVELENT UN COMPORTEMENT DU COURANT EN FONCTION DE LA TEMPERATURE ANALOGUE A CELUI DES SEMICONDUCTEURS AMORPHES
Book Synopsis Etude des propriétés électriques de la phtalocyanine de nickel et du mésogène discotique dérivé de la bis-phtalocyanine de lutétium by : Zoulikha Belarbi
Download or read book Etude des propriétés électriques de la phtalocyanine de nickel et du mésogène discotique dérivé de la bis-phtalocyanine de lutétium written by Zoulikha Belarbi and published by . This book was released on 1987 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: APRES UNE MISE AU POINT DETAILLEE DU COMPORTEMENT DIELECTRIQUE DE MATERIAUX MOLECULAIRES, DES MECANISMES DE CONDUCTION ET DE DOPAGE, UNE PRESENTATION DU MATERIEL EXPERIMENTAL EST DEVELOPPEE. ON A INSISTE PARTICULIEREMENT SUR LA MISE AU POINT D'UNE CELLULE DE MESURE POUR LES CRISTAUX LIQUIDES EN GENERAL. LE CHAPITRE SUIVANT ABORDE L'ETUDE DES PROPRIETES ELECTRIQUES DES PHTALOCYANINES DE NICKEL DOPEES A L'IODE, AINSI QUE DES DERIVES MESOGENES DE LA BIS -PHTALOCYANINE DE LUTETIUM. CES DEUX SORTES DE COMPOSES, PAR LEUR STRUCTURE EN COLONNES, PEUVENT PRESENTER DES PROPRIETES DE CONDUCTION REMARQUABLES. LE DOPAGE DE LA PHTALOCYANINE AU NICKEL PAR L'IODE N'EST PAS TRES STABLE. PAR CONTRE, DANS LES MESOGENES DISCOTIQUES LA CONDUCTION AUGMENTE AVEC LE TAUX DE DOPAGE PAR DES ESPECES OXYDANTES DANS LES DIFFERENTES PHASES. ON A DISCUTE CES PROPRIETES DE CONDUCTION INTRINSEQUES OU NON ET ON MONTRE QUE L'INTRODUCTION DE DOPANT AUGMENTE LA CONDUCTION ELECTRONIQUE. LE DERNIER CHAPITRE PORTE SUR L'ETUDE DIELECTRIQUE DE CRISTAUX LIQUIDES NEMATIQUES OU SMECTIQUES FORTEMENT POLAIRES ET ASYMETRIQUES DESTINES A L'OPTIQUE NON LINEAIRE. EN CONCLUSION, L'INTERET ESSENTIEL DE MESURES DIELECTRIQUES PRECISES CONCERNANT DE TRES PETITES QUANTITES DE MATERIAU EST MISE EN EVIDENCE, ET DE NOUVELLES PROPRIETES ELECTRIQUES DE MATERIAUX DISCOTIQUES ORIGINAUX ONT PU ETRE ETUDIEES
Book Synopsis Multifunctional Oxide Heterostructures by : Evgeny Y. Tsymbal
Download or read book Multifunctional Oxide Heterostructures written by Evgeny Y. Tsymbal and published by OUP Oxford. This book was released on 2012-08-30 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is devoted to the rapidly developing field of oxide thin-films and heterostructures. Oxide materials combined with atomic-scale precision in a heterostructure exhibit an abundance of macroscopic physical properties involving the strong coupling between the electronic, spin, and structural degrees of freedom, and the interplay between magnetism, ferroelectricity, and conductivity. Recent advances in thin-film deposition and characterization techniques made possible the experimental realization of such oxide heterostructures, promising novel functionalities and device concepts. The book consists of chapters on some of the key innovations in the field over recent years, including strongly correlated oxide heterostructures, magnetoelectric coupling and multiferroic materials, thermoelectric phenomena, and two-dimensional electron gases at oxide interfaces. The book covers the core principles, describes experimental approaches to fabricate and characterize oxide heterostructures, demonstrates new functional properties of these materials, and provides an overview of novel applications.
Book Synopsis Data Storage at the Nanoscale by : Gan Fuxi
Download or read book Data Storage at the Nanoscale written by Gan Fuxi and published by CRC Press. This book was released on 2015-02-09 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the big data era, data storage is one of the cores in the whole information chain, which includes production, transfer, sharing, and finally processing. Over the years, the growth of data volume has been explosive. Today, various storage services need memories with higher density and capacity. Moreover, information storage in the big data applic