Program/Scientific Program
Microsymposia

     Physical and/or Fundamental

 

MS-02	Recent Advances in Quasicrystal Research
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.
MS-09	High-pressure Crystallography of Periodic and Aperiodic Crystals
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.
MS-12	Crystallography and Physics of Low-dimensional Systems: Fullerenes, Carbon Nanotubes, Graphene, Topological Insulators and Superconductors
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.
MS-17	In Situ Crystallography Under External Stimuli
Description	Xray and neutron scattering experiments under electric field, magnetic field or high pressure.
MS-18	Magneto-structural Relationships in Molecular Compounds
Description	Relations between structure and magnetic ordering / magnetic anisotropy in molecular magnets. Understanding magnetic interactions in molecular compounds (intra and inter-molecular interactions).
MS-20	Advances in X-ray FEL Coherent Scattering & Diffraction
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.
MS-24	New 3D Electron Diffraction Techniques and their Potential for Structure Solution of Nano-and Micron Sized Crystals
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.
MS-25	Electron Density and Optical Properties of Materials
Description	The derivation of optical properties of organic and organometallic materials from accurate electron density distribution measurements/calculations.
MS-26	Commensurate and Incommensurate Multiferroics and Magnetoelectrics: Structure and Properties
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.
MS-32	Graphene and Similar Systems
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.
MS-33	Symmetry Constraints in Magnetic Structure Determination: Experiment and Theory
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.
MS-34	Crystals and Beyond (Which materials and structures give rise to Bragg peak diffraction? Which potentially interesting and useful structures do not?)
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?
MS-41	Electronic and Magnetic Phenomena at Extreme Conditions
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.
MS-42	Diffuse Scattering and Partial Disorder in Complex Structures (phasons, dislocations, frustration, twinning, singular continuous diffraction)
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 pertial disorder and diffuse scattering - frustration, atomic dynamics, phasons, dislocations, structural models with inherent randomness, etc.
MS-48	Nanocrystalline Materials
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.
MS-54	Biological Macromolecule Structures by Cryo-EM
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.
MS-60	Electron Crystallography and X-ray Powder Diffraction - Two Complementary Techniques for Structure Solution of Nano- and Micron-sized Crystals
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.
MS-70	Biological Electron Crystallography
Description	This microsymposium will address technical advances in and interesting structures determined by two dimensional electron crystallography.
MS-72	Methods, Algorithms and Software for Powder Diffraction
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 humps next steps of the analysis 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.
MS-80	Biomolecular Systems Under Pressure - In Memory of Roger Fourme
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.
MS-88	Liquids, Amorphous and Nanocrystalline Solids at Extreme Conditions
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.
MS-90	Structural, Electronic and Magnetic Ordering: From Fundamental Physics to Functionality
Description	Charge, orbital and magnetic ordering phenomena in complex oxides and related materials, studied by X-ray and neutron scattering and other techniques.
MS-95	Symmetry and its Generalisations in Science and Art
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. Work 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.
MS-97	Quantitative Electron Imaging and Composition and their Applications to Crystallographic Problem
Description	With the increasing signal and resolution in aberration corrected instruments, the door has opened to new methods of measuring from images atomic positions with picometer accuracy as well as chemical and electronic structure atom-by-atom.
MS-98	X-ray, Muon and Neutron Studies of Magnetic Structure in Materials
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.
MS-104	Crystal Structure Prediction and Materials Design
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.
MS-105	Frustration, Topology and Chirality in Metals and Complex Oxides
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.
MS-106	Combined Studies of Charge, Spin and Momentum Densities
Description	The combination of different techniques (Xray, magnetic Xray, polarized neutron diffraction, and Compton (magnetic or not) ) to refine a common model of electron density.
MS-111	Surfaces
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.