Ferroelectric materials have been a key research topic owing to their wide variety of modern
electronic and photonic applications. For the quick exploration of higher operating speed …

Due to their structural flexibility, tunability and easy processing, molecular ferroelectric
materials have emerged to complement the well-known ferroelectric perovskite oxides. A …

An excitonic-insulating system is studied from a viewpoint of the orbital physics in strongly
correlated electron systems. An effective model Hamiltonian for low-energy electronic states …

Abstract Second Harmonic Generation induced by the electric field of a strong nearly single-
cycle terahertz pulse with the peak amplitude of 300 kV/cm is studied in a classical inorganic …

Polar compounds with switchable polarization properties are applicable in various devices
such as ferroelectric memory and pyroelectric sensors. However, a strategy to prepare polar …

Organic Mott-insulators are abundant among molecular conductors and are relevant to
many emerging properties such as insulator-to-metal transitions, superconductivity …

A rapid polarization control in paraelectric materials is important for an ultrafast optical
switching useful in the future optical communication. In this study, we applied terahertz …

Molecular ferroelectrics are often considered as an alternative to inorganic ferroelectrics due
to their structural diversity, optical transparency, and low-temperature solution processing. A …

Ultrafast electronic-phase change in solids by light, called photoinduced phase transition, is
a central issue in the field of non-equilibrium quantum physics, which has been developed …

The ability to switch ferroics (magnets, ferroelectrics, multiferroics) between two stable bit
states is the main principle of modern data storage technology. Due to many new ideas …