Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session T00: Poster Session III (1pm-4pm PST)
1:00 PM,
Thursday, March 9, 2023
Room: Exhibit Hall (Forum Ballroom)
Sponsoring
Unit:
APS
Abstract: T00.00340 : High Pressure Study of Lithium Carbides*
Presenter:
Anmol Lamichhane
(University of Illinois at Chicago)
Authors:
Anmol Lamichhane
(University of Illinois at Chicago)
Husam Farraj
(University of Illinois at Chicago)
Pikee Priya
(University of Illinois Chicago)
Muhtar Ahart
(University of Illinois at Chicago)
Ravhi Kumar
(University of Illinois at Chicago)
Santanu Chaudhuri
(University Of Illinois At Chicago)
Jordi Cabana-Jimenez
(University of Illinois Chicago)
Russell J Hemley
(University of Illinois at Chicago)
Anmol Lamichhane1, Husam Farraj2, Pikee Priya3, Muhtar Ahart1, Ravhi Kumar1, Santanu Chaudhuri3, Jordi Cabana2, Russell J. Hemley4
1Department of Physics, University of Illinois Chicago
2Department of Chemistry, University of Illinois Chicago
3Department of Civil, Materials, and Environmental Engineering, University of Illinois Chicago
4Departments of Physics, Chemistry, and Earth and Environmental Sciences, University of Illinois Chicago
Dense high symmetry carbon framework structures containing alkali or alkaline earth metals inside the framework are expected to exhibit interesting electronic properties such as superconductivity analogous to those found in superconducting hydrides under pressure [1-3]. For example, sodalite-like NaC6 is predicted to form under pressure and have superconductivity above 100 K and be recoverable to ambient [1]. However, detailed studies of the phases in carbon-based systems are both unexplored experimentally under pressure. Here, we present high-pressure studies of Li-C compounds using various techniques including x-ray diffraction and Raman spectroscopy. Stability, structure and bonding, and electronic properties are also studied using first-principles density functional theory calculations.
This work was supported by DOE-NNSA (DE-NA0003975, CDAC) and NSF (DMR-210488, DMR-1933622).
References:
[1] S. Lu et al., Phys. Rev. B 93 104509 (2016).
[2] Z. Liu et al., Phys. Rev. Lett. 127, 157002 (2021).
[3] K. Sano et al., arXiv:2002.02174v2.
*This work was supported by DOE-NNSA (DE-NA0003975, CDAC) and NSF (DMR-210488, DMR-1933622).
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