| MS-02 |
Recent Advances in Quasicrystal Research |
| Co-Chairs |
An Pang Tsai, Janusz Wolny |
| Description |
Covers all aspects of research on quasicrystals with emphasis on state-of-the-art experiment and theory and on new and "hot" results. Should have a broad scope, but should coordinate the speakers with the other sessions on aperiodic crystals.
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| MS-09 |
In Situ Crystallography Under External Stimuli |
| Co-Chairs |
Pierre Fertey, Dimitri Argyriou |
| Description |
Xray and neutron scattering experiments under electric field, magnetic field or high pressure. |
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| MS-12 |
Crystallography and Physics of Low-dimensional Systems: Fullerenes, Carbon Nanotubes, Graphene, Topological Insulators and Superconductors |
| Co-Chairs |
Boris Yakobson, Jean-Francois Halet |
| Description |
Low-dimensional systems display a number of exciting physical phenomena and properties, the discovery of which has been honored with a number of recent Nobel Prizes and promise to revolutionary technological applications. Experimental and theoretical works reporting breakthroughs in our understanding of the world of low-dimensional materials will be presented in this symposium.
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| MS-17 |
High-pressure crystallography of Periodic and Aperiodic Crystals |
| Co-Chairs |
tbc |
| Description |
Topics: Polymorphism in molecular and inorganic solids, quasicrystals at high pressure, anisotropic compression mechanisms, incommensurate structures at high pressure, complex elemental structures, interatomic and intermolecular forces at high pressure, hydrogen bond transformations, Fermi surface nesting.
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| MS-18 |
Magneto-structural Relationships in Molecular Compounds |
| Co-Chairs |
Andrea Cornia, Prof. Barbara Sieklucka |
| Description |
Relations between structure and magnetic ordering / magnetic anisotropy in molecular magnets, using neutron diffraction (polarised or not) or combined Xray diffraction and HF-EPR or magnetometry measurements. Understanding magnetic interactions in molecular compounds (intra and inter-molecular interactions).
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| MS-20 |
Advances in X-ray FEL Coherent Scattering & Diffraction |
| Co-Chairs |
Thomas Tschentscher, Changyong Song |
| Description |
Coherent scattering and imaging techniques, such as coherent diffractive imaging, including both results and technique development towards the eventual goal of single molecule imaging.
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| MS-24 |
New 3D Electron Diffraction Techniques and their Potential for Structure Solution of Nano-and
Micron Sized Crystals |
| Co-Chairs |
tbc |
| Description |
The focus of this session will be new research such as three-dimensional tomographic imaging and three-dimensional diffraction to determine the atomic structure and defects in small systems.
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| MS-25 |
Electron Density and Optical Properties of Materials |
| Co-Chairs |
J. Cole, D. Jayatilaka |
| Description |
The derivation of optical properties of organic and organometallic materials from accurate electron density distribution measurements/calculations.
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| MS-26 |
Commensurate and Incommensurate Multiferroics and Magnetoelectrics: Structure and Properties |
| Co-Chairs |
Prof. dr. hab. Radoslaw Przenioslo, Prof. Hiroyuki Kimura |
| Description |
Progress in understanding the connection between crystal structures, commensurate or incommensurate magnetic structures and electrical polarisation or the magnetoelectric tensor in these novel materials.
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| MS-32 |
Graphene and Similar Systems |
| Co-Chairs |
tbc |
| Description |
This microsymposium will cover different aspects of the atomic structure including defects in graphene and related systems such as MoS2 as analyzed by a range of crystallographic methods.
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| MS-33 |
Symmetry Constraints in Magnetic Structure Determination: Experiment and Theory |
| Co-Chairs |
Prof. Branton Campbell, Mois Ilia Aroyo |
| Description |
The superspacegroup formalism and representation method particulized to the description of magnetic structures and investigations of phase transitions in periodic and aperiodic crystals. The role of symmetry restrictions in the interpretation of experimental data.
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| MS-34 |
Crystals and Beyond |
| Co-Chair |
S. I. Ben-Abraham, Jeong-Yup Lee |
| Description |
The frontiers of crystallography and diffraction theory. What is a crystal - i.e. which structures give rise to Bragg peak diffraction? Which potentially interesting and useful structures do not? How do we deal with structures that lead to singular continuous diffraction?
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| MS-41 |
Electronic and Magnetic Phenomena at Extreme Conditions |
| Co-Chair |
Karen Friese |
| Description |
Topics: Spectroscopic methods for characterization of magnetic state of solids at high pressure, magnetic phase transitions, magnetic symmetry group relations and phase transition pathways, spin crossover, metal-insulator transitions, superconductivity, relaxor ferroelectric materials, Jahn-Teller effect at high pressure.
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| MS-42 |
Diffuse Scattering and Partial Disorder in Complex Structures |
| Co-Chairs |
Richard Wellbery, Marc de Boissieu |
| Description |
Quantitative studies of diffuse scattering and partial disorder in quasicrystals and other complex structures (modular structures, twins, large unit-cell complex metallic alloys, etc). Physical origins of partial disorder and diffuse scattering - frustration, atomic dynamics, phasons, dislocations, structural models with inherent randomness, singular continuous diffraction, etc.
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| MS-48 |
Nanocrystalline Materials |
| Co-Chairs |
tbc |
| Description |
At the nanoscale structures can be different, ranging from size-dependent phase transitions, surface reconstructions or different nanoparticle structures to phenomena associated with more surfaces or internal interfaces. This microsymposium will cover progress with electron. neutron and x-ray tools to better understand this.
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| MS-54 |
Biological Macromolecule Structures by Cryo-EM |
| Co-Chair |
Howard Young |
| Description |
This session will cover advances in single particle techniques and new structures of large biological macromolecules, which reveal interesting functional insight and push the limits of resolution.
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| MS-60 |
Electron Crystallography and X-ray Powder Diffraction - Two Complementary Techniques for Structure Solution of Nano- and Micron-sized Crystals |
| Co-Chair |
Lynne McCusker |
| Description |
This session will explore the current state of the art in terms of combining electron based methods and x-ray powder diffraction to overcome the limitations of both; 2+2=5.
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| MS-70 |
Biological Electron Crystallography |
| Co-Chair |
Ingeborg Schmidt-Krey |
| Description |
This microsymposium will address technical advances in and interesting structures determined by two dimensional electron crystallography.
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| MS-72 |
Methods, Algorithms and Software for Powder Diffraction |
| Co-Chairs |
Ryoko Oishi-Tomiyasu, Jon Wright |
| Description |
Phase identification or crystal structure determination from powder diffraction data rely on lattice characterization (both cell parameters, metric symmetry), which due to mathematical and experimental problems reveals some instability and thus interferes with the next steps of the analytical process. This is especially important in recent automated diffractometers, which should give stable results without human intervention. The robust identification of Bravais lattices and lookup of unit cell parameters in databases would be improved if a reduction of both instability sources could be achieved. Thus, advances in autoindexing of diffraction patterns, improvements of cell reduction.
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| MS-76 |
Two Dimensional X-ray Diffraction |
| Co-Chairs |
tbc |
| Description |
Two-dimensional X-ray diffraction is an ideal, non-destructive, analytical method for examining many materials, such as metals, polymers, ceramics, semiconductors, thin films, coatings, paints, biomaterials and composites for material science research, molecular structure determination and polymorphism study for drug discovery and processing, and samples with micro volume or micro-area for forensic analysis and archaeology analysis. A two-dimensional diffraction pattern contains abundant information about the atomic arrangement, microstructure and defects in a material. In recent years, the use of two-dimensional detector based diffractometers has dramatically increased in academic, government, and industrial laboratories. This symposium covers the fundamentals and recent advances in two-dimensional X-ray diffraction, including theory, geometry convention, 2D data interpretation and evaluation, instrumentation and various applications, such as phase identification, texture, stress, microstructure analysis, crystal size, crystallinity and thin film analysis.
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| MS-80 |
Biomolecular Systems Under Pressure - In Memory of Roger Fourme |
| Co-Chair |
Nick Brooks |
| Description |
Topics: Experimental approaches to macromolecular crystallography at high pressure, multi-technique approaches, pressure-induced polymorphism of macromolecules, pressure effects on enzyme activity, high-pressure behavior of aminoacids, biomimetics.
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| MS-88 |
Liquids, Amorphous and Nanocrystalline Solids at Extreme Conditions |
| Co-Chair |
Yoshinori Katayama |
| Description |
Topics: determination of structure of glasses and liquids from total scattering experiments, reverse Monte Carlo modeling, quantitative in situ density determination for glasses and liquids at high pressure, effects of grain size on physical properties and phase diagrams, ultrasonic in situ measurements on glasses and liquids at high PT, pressure-induced amorphisation, memory glasses, core-shell nanomaterials at extreme conditions.
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| MS-90 |
Structural, Electronic and Magnetic Ordering: From Fundamental Physics to Functionality |
| Co-Chair |
Dr. Yuichi Shimakawa |
| Description |
Charge, orbital and magnetic ordering phenomena in complex oxides and related materials, studied by X-ray and neutron scattering and other techniques.
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| MS-95 |
Symmetry and its Generalisations in Science and Art |
| Co-Chairs |
M.A. Louise de la Penas, Emil Makovicky |
| Description |
Symmetry underpins Nature in all its expressions, from the structure of minerals building a rock to the complex assembly of biological macromolecules, from the morphology of crystals and living beings to the fundamental properties of elementary particles. Crystal engineering and drug-design rely on symmetry to develop new devices and compounds with target properties. Works of art and architectural realisations mimic Nature or takes inspiration from its symmetry patterns, which however often go beyond classical space-group symmetry to include colour symmetry, local and partial operations (groupoid symmetry), subperiodic and sectional groups as well as symmetry in non Euclidean geometry. The purpose of this microsymposium is to draw attention on some of these generalised symmetries, especially those less commonly approached by crystallographers in their daily work, and to present examples taken from Nature, man-made works, art and architecture where these symmetries play an important role.
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| MS-97 |
Quantitative Electron Imaging and Composition: Applications to Crystallographic Problems |
| Co-Chairs |
tbc |
| Description |
With the increasing signal and resolution in aberration corrected instruments, the door has opened to new methods of imaging atomic positions with picometer accuracy as well as chemical and electronic structure atom-by-atom.
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| MS-98 |
X-ray, Muon and Neutron Studies of Magnetic Structure in Materials |
| Co-Chairs |
Youchi Murakami, Oksana Zaharko |
| Description |
Synchrotron X-rays and neutron probes are used in a complimentary fashion for a range of structure studies, such as magnetic structure. Muons are a powerful probe to detect very small local magnetic moments, complimenting the neutron and synchrotron probes for average magnetic structure. The complementary use of these probes is effective to reveal complicated magnetic structures like magnetically frustrated systems.
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| MS-104 |
Crystal Structure Prediction and Materials Design |
| Co-Chairs |
Roman Martonak, Tian Cui |
| Description |
Crystal structure prediction, a central problem in crystallography, was widely considered as an intractable problem and a stumbling block to computational materials design. With recent developments, this problem has become tractable, and a new scientific revolution is on its way. The ability to predict crystal structures allows one to predict materials with desired physical properties and one can expect this approach to take over the traditional trial-and-error laboratory approach to materials discovery. This symposium will present the most recent achievements in this booming field - from exotic compounds at extreme conditions to the design of novel functional materials to drug design.
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| MS-105 |
Frustration, Topology and Chirality in Metals and Complex Oxides |
| Co-Chair |
Prof. Dr. Taku J. Sato |
| Description |
Skyrmions and other chiral systems (metals, oxi-selenides etc.) and the search for topological strongly correlated insulators, especially in 4d and 5d TM compounds.
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| MS-106 |
Combined Studies of Charge, Spin and Momentum Densities |
| Co-Chairs |
Nicolas Claiser, Javier Campo |
| Description |
Electron densities as studied by different techniques (Xray, magnetic Xray, polarized neutron diffraction, and Compton scattering (magnetic or not) ) and combination of the data sets provided by these techniques for refining a common model for the electron density.
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| MS-111 |
Surfaces |
| Co-Chair |
Joanne Stubbs, |
| Description |
The focus of this session will be any and all methods of investigating the atomic structure of surfaces, ranging from those using electrons (TED, RHEED, LEED) to techniques using x-rays (e.g. SXRD) as well as other tools such as XPS, plus combinations with other tools such as probe microscopies.
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