Coexistence of superconductivity and charge density wave instability in A15-Nb₃Sn

Abstract

A15-type compound \ch{Nb3Sn} has attracted much attention due to its relatively high critical temperature and critical field of superconductivity, making it a leading material for superconducting applications. In this study,...

Low-frequency electron–phonon interaction and superconductivity in L12 -type trialuminides Al3V

“…element crystals [1][2][3][4], intermetallic compounds [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21], topological semimetals [22][23][24], CDW materials [25][26][27][28][29][30][31] and superhydride [32][33][34][35]. As far as we know, a higher T c of those materials is often associated with structural instabilities that are characterized by phonon softening, in which the soft modes responsible for the instability are particularly effective in enhancing T c .…”