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Abstract I report on the three-dimensional (3D) hydrodynamic evolution of a rapidly rotating 16 M ⊙ star to iron core collapse. For first time, follow 3D angular momentum (AM) distribution in and convective shell burning regions for final 10 minutes up including gravitational instability In 3D, show efficient AM transport that leads an profile differs shape magnitude from MESA within few turnov...
Clathrate-like or caged compounds have attracted great interest owing to their structural flexibility, as well fertile physical properties. Here, we report the pressure-induced reemergence of superconductivity in BaIr 2 Ge 7 and Ba 3 Ir 4 16 , two new superconductors with two-dimensional building blocks cage structures. After suppression ambient-pressure superconducting (SC-I) states, (SC-II) s...
A series of Cr-substituted hollandite solid solution BaxCsyCr2x+yTi8?2x?yO16 over a broad range Cs content (x + y = 1.33, 0 ? x and 1.33) were systematically investigated. monoclinic-to-tetragonal phase transition was induced by increasing in the tunnel sites structure, all members show structure modulations related to ordering Ba/Cs vacancies along tunnels. The thermodynamic stability samples ...
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