Abstract

Keywords: Superconductivity; Chemical compression; Diamond-like lattice; Hydrogen sublattice; B–C–N framework; Lithium doping; Boron phonon amplifier; Cryo-lock; Self-locking cage; Electron–phonon coupling; Van hove singularity
Introduction













References
- Ashcroft NW (1968) Metallic hydrogen: A high-temperature superconductor. Physical Review Letters 21(26): 1748-1749.
- Drozdov AP, Troyan IA, Eremets MI, Ksenofontov V, Shylin SI (2015) Conventional superconductivity at 203K at high pressures in the sulfur hydride system. Nature 525(7567): 73-76.
- Somayazulu M, Ahart M, Mishra AJ, Geballe ZM, Baldini M, et al. (2019) Evidence for superconductivity above 260 K in lanthanum super hydride at megabar pressures. Physical Review Letters 122(2): 027001.
- Snider E, Gammon ND, McBride R, Debessai M, Vindana H, et al. (2020) Room-temperature superconductivity in a carbonaceous sulfur hydride. Nature 586: 373-377.
- Benedict LX, (1998) Hypothetical carbon clathrates. Physical Review B 57: 14141.
- Yildirim T (2008) Hydrogen storage in clathrate hydrates. Physical Review Letters 100: 155501.
- Allen PB, Dynes RC (1975) Transition temperature of strong-coupled superconductors reanalyzed. Physical Review B 12: 905-922.
- Ekimov EA, et al. (2004) Superconductivity in diamond. Nature 428: 542-545.
- Kresse G, Furthmüller J (1996) Efficient iterative schemes for ab initio total-energy calculations. Physical Review B 54: 11169.
- Ma Y (2010) Crystal structure prediction via evolutionary algorithms. Computer Physics Communications 181: 2102.
- Zhang Y (2015) Diamond-like B–C–N materials: synthesis and properties. Journal of Materials Chemistry C 3: 12345 12356.
- Oganov AR, Glass CW (2006) Crystal structure prediction using ab initio evolutionary techniques. Journal of Chemical Physics 124(24): 244704.
- Stoicheff BP (1957) High-resolution Raman spectroscopy of gases. Canadian Journal of Physics 35(5): 730-741.
- Miao M (2012) Lithium doping in clathrate hydrates. Physical Review B 85: 094107.
- Errea I, Calandra M, Pickard CJ, Nelson JR, Needs, et al. (2016) Quantum hydrogen-bond summarization in the super-conducting hydrogen sulfide system. Nature 532(7597): 81-84.
- Mao HK (2018) Cryogenic decompression of metastable hydrides. Science 359: 1163-1166.
- Hemley RJ, Mao HK (2002) In situ studies of iron under pressure: New Windows on the Earth's Core. International Geology Review. International Geology Review 43(1): 1-30.
- Tse JS (2001) Structure and dynamics of clathrate hydrates. Journal of Physical Chemistry B 105: 10018-10026.
- Duan D, et al. (2017) Pressure-induced metallization of dense B–C–N. Physical Review B 95: 064101.
- Wang X (2019) B–C–N heterostructures: electronic and phonon proper-ties. Nanoscale 11: 12345-12356.
- Duan D (2014) Superconductivity in dense hydrogen-rich compounds. Scientific Reports 4: 6968.
- Liu H (2017) Potential high- superconductivity in CaH₆ and MgH₆. Journal of Physical Chemistry C 121: 11340-11345.
- Wang H (2020) Core–shell architectures for hydrogen rich superconductors. Physical Review B 101: 024510.
- Pickard CJ, Needs RJ (2007) High-pressure phases of silane. Physical Review Letters 99: 255901.
- Errea I (2020) Phonon band engineering in clathrate hydrides. Physical Review Letters 124: 157001.
- Sanna A (2018) Van Hove singularity in high hydrides. Physical Review B 98: 184508.
- Blase X, Adessi CH, Connétable D (2004) Role of the dopant in the superconductivity of diamond. Physical Review Letters 93(23): 237004.
- Gorkov LP, Rashba EI (2001) Anisotropic stress and superconductivity. Physical Review Letters 87: 037004.
- Heil C (2019) Hydrogen-weighted electron–phonon coupling in super hydrides. Physical Review B 99: 220502.
- Eremets MI (2019) Kinetic trapping of metastable hydrides. Nature Communications 10: 1-8.
- McMillan WL (1968) Transition temperature of strong-coupled super conductors. Physical Review 167: 331-344.
- Glass CW, Oganov AR, Hansen N (2006) USPEX: evolutionary crystal structure prediction. Computer Physics Communications 175: 713-720.
- Wang Y, Lv J, Zhu L, Ma Y (2012) CALYPSO: a method for crystal structure prediction. Computer Physics Communications 183(10): 2063-2070.
- Migdal AB (1958) Interaction between electrons and lattice vibrations in a normal metal. OSTI.GOV 34.
- Eliashberg GM (1960) Interactions between electrons and lattice vibrations in a superconductor. Soviet Physics JETP 11(3): 696-702.
- Mao HK, Bell PM (1978) Design and operation of a diamond anvil cell. Carnegie Institution of Washington Yearbook 77: 904-908.
- Sun J (2019) B–C–O and B–N–C frameworks for high-pressure super conductivity. Physical Review B 99: 104101.

















