A singular flat band (SFB), a distinct class of the flat band, has been shown to exhibit various intriguing material properties characterized by the quantum distance. We present a general construction ...
On the left, the tight model of the HOTI is fabricated with 2.5×2.5×2.5 unit cells. The chessboard Ï€-flux configuration projectively changes the conventional reflection into the k-NS one. On the right ...
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