Phase Boundaries, Isotope Effect and Superconductivity of Lithium Under Pressure
ORAL
Abstract
Lithium, the simplest element with core electrons, serves as a model system for understanding dense sp-band metals and quantum phenomena such as electron localization and topological phases. Under extreme pressures, it undergoes intricate structural transitions that challenge conventional theories, while its low atomic mass enhances quantum nuclear effects. Here, I present the experimental studies of structural properties of lithium under pressure in several pressure and temperature ranges. In particular I will present the results of the structural phase boundaries of lithium isotopes within their superconducting range and provide an explanation for the pressure dependence superconducting behavior of lithium isotopes. I will also present our recent results on the structural properties of warm dense lithium.
*Nationa Science Foundation (NSF), Department of Energy (DOE), University of UtahSAND2025-01978ASNL is managed by NTESS, LLC under contract DE-NA0003525. LANL is operated by Triad National Security, LLC, for the National Nuclear Security Administration of the U.S. Department of Energy under contract 89233218NCA000001. This work describes objective technical results and analysis. Any subjective views or opinions that might be expressed in the work do not necessarily represent the views of the U.S. Department of Energy or the United States Government.
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Publication: Phase Boundaries, Isotope Effect and Superconductivity of Lithium Under Hydrostatic Conditions (https://arxiv.org/abs/2312.17498),
SAND2025-01978A
Presenters
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ANUKRITI GHIMIRE
- University of Utah