Conductive nature in crystal structures revealed at magnification of 10 million times

IMAGE: University of Minnesota Professor K. Andre Mkhoyan and his team used analytical scanning transmission electron microscopy (STEM), which combines imaging with spectroscopy, to observe metallic properties in the perovskite crystal… view more  Credit: Mkhoyan Group, University of Minnesota In groundbreaking materials research, a team led by University of Minnesota Professor K. Andre Mkhoyan has made […]

Conductive nature in crystal structures revealed at magnification of 10 million times

University of Minnesota Professor K. Andre Mkhoyan and his team used analytical scanning transmission electron microscopy (STEM), which combines imaging with spectroscopy, to observe metallic properties in the perovskite crystal barium stannate (BaSnO3). The atomic-resolution STEM image, with a BaSnO3 crystal structure (on the left), shows an irregular arrangement of atoms identified as the metallic […]

Mechanophores: Making polymer crystallization processes crystal clear

In modern times, manufacturers produce highly specialized materials for a wide array of uses, called polymers. Polymers have a variety of purposes owing to their versatile properties, ranging from being used in construction due to their high tensile strength and resistance to manufacturing plastic bags that require more lightweight, flexible materials, such as nylon or […]

Designing Dirac vortex topological photonic crystal fibres

Asymmetric and symmetric approaches to an SPSM. (a) Dominant approach to split the degenerate fundamental modes by structural asymmetry. (b) Proposed Bragg fibre design to guide light by a singly degenerate mode with lower loss than other modes. (c) The topological PCF provides singlet mid-gap dispersion for a broadband SPSM. Credit: Light: Science & Applications, […]

Molecular crystal structures pack it in

Autopack rotates crystal structures in 3D space to minimize their molecules’ projected area. After convergence, it is possible to extract the crystal’s associated packing motif based on relative interplanar angles. In this example, the stacks found after the optimization procedure indicate the structure’s beta packing motif. Credit: Lawrence Livermore National Laboratory Whether organic chemists are […]

New fullerene crystal production method 50 times faster than predecessor

IMAGE: (a) Photo of produced FFMP on quarts plate and (b)-(d) scanning electron microscope images of samples. view more  Credit: Yokohama National University Researchers from Yokohama National University and the University of Electro-Communications in Japan have developed a highly efficient technique for producing a unique fullerene crystal, called fullerene finned-micropillar (FFMP), that is of significant use […]

Using a soft crystal to visualize how absorbed carbon dioxide behaves in liquid

IMAGE: The CO2-absorbing soft crystal developed for this study (Photo: Shin-ichiro Noro). view more  Credit: Shin-ichiro Noro A team of scientists has succeeded in visualizing how carbon dioxide (CO2) behaves in an ionic liquid that selectively absorbs CO2. The finding is expected to help develop more efficient methods to capture CO2 in the atmosphere, one of […]

A photonic crystal coupled to a transmission line via an artificial atom

The device. (a) Schematics of the device. The artificial atom is simultaneously coupled to electromagnetic and acoustic systems. Microwave photons excite an artificial atom (qubit). The atom in turn generates phonons into the phononic crystal. (b) Schematic representation of the sample. Electromagnetic waves propagate through a coplanar transmission line and interact with an artificial atom […]