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Updated: Feb 19, 2026

Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model
Published on: May 23, 2018
Superconductivity of Pressure-Stabilized Vanadium Hydrides.
1College of Physics and Electronic Information & Henan Key Laboratory of Electromagnetic Transformation and Detection, Luoyang Normal University , Luoyang 471934, China.
Researchers discovered new high-temperature superconductors in vanadium hydrides under high pressure. These hydrogen-rich materials, like VH5 and VH8, show superconductivity up to 71.4 K, advancing the search for novel superconductors.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Computational Chemistry
Background:
- High-temperature superconductivity in hydrogen-rich materials is a key research area.
- Chemical precompression in hydrides enables superconductivity at lower pressures.
Purpose of the Study:
- Investigate stable vanadium (V) hydride structures under high pressure (0-200 GPa).
- Identify potential high-temperature superconducting properties of these hydrides.
Main Methods:
- First-principles structure searches.
- Density Functional Theory (DFT) calculations.
- Electron-phonon coupling calculations.
Main Results:
- Discovered stable, hydrogen-rich vanadium hydride stoichiometries (VH3, VH5, VH8).
- Identified metallic and ionic characteristics with increasing V coordination number.
- Calculated superconducting temperatures (Tc) for P63/mmm-VH5 (18.5 K) and C2/m-VH8 (71.4 K) at 200 GPa.
Conclusions:
- Vanadium hydrides exhibit stable structures and metallic properties under high pressure.
- P63/mmm-VH5 and C2/m-VH8 are predicted to be high-temperature superconductors.
- The study establishes the potential of vanadium hydrides for high-temperature superconductivity.
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