Perovskite materials have a great variety of applications, such as X-ray detection, lasing and piezoelectric, or solar energy harvesting. While achieving record efficiencies, perovskite cells suffer from the presence toxic lead in their crystal structure. One possibility to circumvent this issue is via family vacancy-ordered double-perovskites, where atoms are replaced alternatingly by tetraval...

Magnetic two-dimensional materials have potential application in next-generation electronic devices and stimulated extensive interest condensed matter physics material fields. However, how to realize high-temperature ferromagnetism remains a great challenge physics. Herein, we propose an effective approach that the dimerization of magnetic ions can enhance exchange coupling stabilize ferromagne...

Pressure-stabilized hydrides are a new rapidly growing class of high-temperature superconductors which is believed to be described within the conventional phonon-mediated mechanism coupling. Here we report synthesis yttrium hexahydride Im3m-YH$_6$ that demonstrates superconducting transition with T$_c$ = 224 K at 166 GPa, much lower than theoretically predicted (>270 K). The measured upper crit...