Articles tagged "ELNES"

The 16th European Microscopy Congress 2016
How multiple scattering simulations help for EELS compositional analysis of hard metals and ceramics
Lukas Konrad (1), Martina Lattemann (2), John Rehr (3), Ute Kolb (4), Zhao Haishuang (4), Gerald Kothleitner (1)
1. Graz Centre for Electron Microscopy & Institute for Electron Microscopy and Nanoanalysis, Graz University of Technology, Graz, Autriche 2. Coromant R&D Materials and Processes, AB Sandvik Coromant, Stockholm, Suède 3. Department of Physics, University of Washington, Washington, Etats-Unis 4. Institute of Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg-University, Mainz, Allemagne
In the manufacturing process of hard metals and ceramics used as tooling materials, there is strong interest to determine the phases formed within the sintered…
The 16th European Microscopy Congress 2016
Real-space mapping of electronic orbitals
Stefan Löffler (1, 2), Matthieu Bugnet (2, 3), Nicolas Gauquelin (2, 4), Sorin Lazar (2, 5), Elias Assmann (6, 7), Karsten Held (6), Gianluigi A. Botton (2), Peter Schattschneider (1, 6)
1. USTEM, TU Wien, Wien, Autriche 2. Department of Materials Science and Engineering, McMaster University, Hamilton, Canada 3. CNRS, University of Lyon – National Institute for Applied Sciences, MATEIS, Villeurbanne, France 4. EMAT, University of Antwerp, Antwerp, Belgique 5. FEI, Eindhoven, Pays-Bas 6. Institute for Solid State Physics, TU Wien, Wien, Autriche 7. Institute of Theoretical and Computational Physics, Graz University of Technology, Graz, Autriche
The world as we know it is shaped by electronic states. Be it optical, electrical, or magnetic properties, thermal conductivity, or chemical bonding: almost all…
The 16th European Microscopy Congress 2016
Probing the directionality of local electronic states in SrTiO3 by momentum-selected STEM-EELS
Atsushi Yamaguchi (1), Mitsutaka Haruta (1), Takashi Nemoto (1), Hiroki Kurata (1)
1. Institute for Chemical Research, Kyoto University, Uji, 611-0011 Kyoto, Japon
Electron energy-loss spectroscopy in the scanning transmission electron microscope (STEM-EELS) enable to investigate the local electronic states at the specific atomic column selected by…
The 16th European Microscopy Congress 2016
EELS Probing of lithium based 2-D battery compounds processed by liquid phase exfoliation
Anuj Pokle (1), João Coelho (2), Eva Macguire (3), Clive Downing (4), Patrick Casey (5), Cormac McGuinness (3), Valeria Nicolosi (5)
1. Advance Microscopy Lab, Trinity College Dublin, Dublin, Irlande 2. Chemistry, Trinity College Dublin, Dublin, Irlande 3. Physics, Trinity College Dublin, Dublin, Irlande 4. AML, Trinity College Dublin, Dublin, Irlande 5. CRANN, Trinity College Dublin, Dublin, Irlande
Two-dimensional lithiated nanosheets usually show excellent electrochemical performance due to an increase in surface area and shorter diffusion paths. However, processing techniques, such as shear…
The 16th European Microscopy Congress 2016
High energy-resolution EELS of ferroelectric and paraelectric BaTiO3 phases
Matthieu Bugnet (1, 2), Guillaume Radtke (3), Steffi Y Woo (1), Guo-zhen Zhu (4), Gianluigi A Botton (1)
1. Department of Materials Science and Engineering & Canadian Centre for Electron Microscopy, McMaster University, Hamilton, Canada 2. MATEIS, UMR CNRS 5510, University of Lyon – INSA, Villeurbanne, France 3. Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie - UMR CNRS 7590, Université Pierre et Marie Curie, Paris, France 4. State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, Chine
BaTiO3 (BTO) is a widely studied material with several potential applications as a result of its intrinsic ferroelectricity. It undergoes multiple structural phase transitions across…
The 16th European Microscopy Congress 2016
High energy resolution EELS of copper phthalocyanine crystals
Hiroki Kurata (1), Yoshifumi Fujiyoshi (1), Yuriko Tomisaki (1), Takashi Nemoto (1), Mitsutaka Haruta (1)
1. Institute for Chemical Research, Kyoto University, Uji, Japon
Recent developments of a monochromator for transmission electron microscopy provide a new tool for chemical analysis in local area of materials. Owing to the improved…
The 16th European Microscopy Congress 2016
Topotactic reduction in SrMnO3-δ nanoparticles followed by atomically-resolved microscopy
Almudena Torres-Pardo (1), Irma Noemí González-Jiménez (1), Aurea Varela (1), Marina Parras (1), Jose M. González-Calbet (1, 2)
1. Departamento de Química Inorgánica I, Facultad de Químicas, Universidad Complutense CEI Moncloa, Madrid, Espagne 2. ICTS Centro Nacional de Microscopía Electrónica, Universidad Complutense CEI Moncloa, Madrid, Espagne
The current technological demand of new devices requires the continuous stabilization of new compounds with nanometric scale for novel applications. The huge diversity of functional…
The 16th European Microscopy Congress 2016
Atomically-resolved insight of unusual Sr-Mn(V) oxyhydroxide
Isabel Gómez-Recio (1), Almudena Torres-Pardo (1), María Hernando (1), Aurea Varela (1), Marina Parras (1), Jose Maria Gonzalez-Calbet (1, 2)
1. Dpto. Quimica Inorganica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Madrid, Espagne 2. ICTS Centro Nacional de Microscopía Electrónica, Universidad Complutense de Madrid, Madrid, Espagne
Inorganic compounds containing Mn(V) in tetrahedral coordination are known to show strong optical absorption, producing turquoise- to green-colored compounds [1]. The existence of hypermanganate anion…
The 16th European Microscopy Congress 2016
Ferroelectric/dielectric composite tunnel junctions: influence of the stacking sequence on their microstructure
Frédéric Pailloux (1, 2), Matthieu Bugnet (2), Arnaud Crassous (3), Stéphane Fusil (3), Vincent Garcia (3), Manuel Bibes (3), Gianluigi Botton (2), Agnès Barthélémy (3), Jéröme Pacaud (1)
1. Institut Pprime, UPR3346 CNRS-Univ.Poitiers, CNRS-Univ.Poitiers, Futuroscope-Chasseneuil, France 2. CCEM, Brockhouse Intitute for Materials Research, Mc Master university, Hamilton, Canada 3. Unité Mixte de Physique, UMR 137 CNRS/Thales/Univ. Paris Sud, Palaiseau, France
Increasing the tunnel electroresistance of ferroelectric tunnel junctions can be achieved by replacing the single ferroelectric barrier by a ferroelectric/dielectric bilayer. For a given thickness…