Research Area 9.3: Stabilization of BCS Superconductivity Near Room Temperature in Hydrides Under High Pressure and the Characterization with THz Spectroscopy
Abstract
The objective of the proposal is to explore the crystal structures and chemistry of novel binary-ternary hydrides synthesized at extreme pressures/ temperatures and determine their possible high Tc superconducting properties. The PI proposes synergistic collaborations between high-pressure physicists, first-principles theorists and laser spectroscopists to study electron phonon structures of binary and ternary hydrides synthesized at extreme pressures and temperatures to understand high Tc BCS superconductivity in these materials. More specifically, the PI proposes to employ high-pressure diamond anvil cells (DAC) with external laser heating facility to enable synthesis of stable hydride phases. Synchrotron X-ray diffraction and micro-Raman spectroscopy will be used to characterize the structures. Electrical and magnetic susceptibility measurements will be taken to determine the superconducting properties. Binary systems such as H3S1-xPx, CaH6, and YH6 over a wide range of pressures will be investigated. Some ternary systems will also be considered based on the initial results. The theory effort will be focused on predicting stable thermodynamic phases to guide the processing experimental efforts and scan the compositional space of binary and ternary hydrides for BCS superconductivity.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Mar 27, 2017
- Source ID
- W911NF1610559
Entities
People
- Jianshi Zhou
Organizations
- Army Contracting Command
- United States Army
- University of Texas at Austin