関連する実験動画

Updated: Jul 11, 2026

Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals
10:35

Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals

Published on: May 29, 2018

アブリコソフ相の液晶アナログの観測

K J Ihn, J A Zasadzinski, R Pindak

    Science (New York, N.Y.)
    |October 9, 1992
    PubMed
    まとめ

    スメクティックA ((*)) 液晶のトウィスト粒の境界モデルが,凍結破裂電子顕微鏡で確認されています. この研究は,超伝導体と同様の螺旋構造と変位格子を示しています.

    さらに関連する動画

    High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal06:24

    High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal

    Published on: October 31, 2019

    Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets06:26

    Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

    Published on: May 15, 2017

    関連する概念動画

    Phase Transitions02:31

    Phase Transitions

    Whether solid, liquid, or gas, a substance's state depends on the order and arrangement of its particles (atoms, molecules, or ions). Particles in the solid pack closely together, generally in a pattern. The particles vibrate about their fixed positions but do not move or squeeze past their neighbors. In liquids, although the particles are closely spaced, they are randomly arranged. The position of the particles are not fixed—that is, they are free to move past their neighbors to occupy...
    Phase Transitions01:21

    Phase Transitions

    A phase transition is the process in which a substance changes from one state of matter to another, like from a solid to a liquid, liquid to gas, or vice versa, at a specific temperature and under given pressure conditions. This change is spontaneous and is affected by alterations in temperature and pressure. These parameters impact the strength of the forces between molecules (intermolecular forces) in the substance.During a phase transition, both the initial and final phases of the substance...
    Phase Transitions: Vaporization and Condensation02:39

    Phase Transitions: Vaporization and Condensation

    The physical form of a substance changes on changing its temperature. For example, raising the temperature of a liquid causes the liquid to vaporize (convert into vapor). The process is called vaporization—a surface phenomenon. Vaporization occurs when the thermal motion of the molecules overcome the intermolecular forces, and the molecules (at the surface) escape into the gaseous state. When a liquid vaporizes in a closed container, gas molecules cannot escape. As these gas phase molecules...
    Phase Transitions: Melting and Freezing02:39

    Phase Transitions: Melting and Freezing

    Heating a crystalline solid increases the average energy of its atoms, molecules, or ions, and the solid gets hotter. At some point, the added energy becomes large enough to partially overcome the forces holding the molecules or ions of the solid in their fixed positions, and the solid begins the process of transitioning to the liquid state or melting. At this point, the temperature of the solid stops rising, despite the continual input of heat, and it remains constant until all of the solid is...
    Phase Diagrams02:39

    Phase Diagrams

    A phase diagram combines plots of pressure versus temperature for the liquid-gas, solid-liquid, and solid-gas phase-transition equilibria of a substance. These diagrams indicate the physical states that exist under specific conditions of pressure and temperature and also provide the pressure dependence of the phase-transition temperatures (melting points, sublimation points, boiling points). Regions or areas labeled solid, liquid, and gas represent single phases, while lines or curves represent...
    Phase Diagram01:24

    Phase Diagram

    A phase diagram is a graphical representation of the physical states of a substance under different conditions of temperature and pressure. It shows the boundaries between solid, liquid, and gas phases and the conditions at which these phases coexist in equilibrium. An area in a phase diagram represents a single phase, whereas lines or phase boundaries represent the equilibrium between two phases.In the phase diagram of water, the boundary line between the solid and liquid states illustrates...