Discovery: Magnetic properties of cobalt films can be optimized through nanoscale structuring and thermal annealing.
Discovery: Magnetic properties of cobalt films can be optimized through nanoscale structuring and thermal annealing.
Researchers from North Carolina State University have developed a novel and versatile
Effect: We have demonstrated that the shape of the Hanle
The collaboration among Hong Tang, Charles Ahn, and Fred Walker’s groups recently realized a new type of electro-optic modulator based on epitaxial ferroelectric BaTiO3 on silicon. A very high Pockels’ coefficient, up to 213 pm/V, was demonstrated, a record value that is more than six times larger than found in commercial optical modulators based on lithium niobate.
In this work, we study a novel dynamical phase transition of light, where photon-photon interactions and dissipation into the environment are key aspects of the physics. Together they give rise to a transition from a region of classical behavior into a regime where quantum effects dominate. The transition was observed in a Jaynes-Cummings dimer built
Condensed matter systems provide a rich setting to realize Dirac and Majorana fermionic excitations and the possibility to manipulate them in materials for potential applications. Recently, it has been proposed that Weyl fermions, which are chiral, massless particles, can emerge in certain bulk