Noble Gas Functional Defect with Unusual Relaxation Pattern in Solids.
Lovelesh Vashist1, Harshan Reddy Gopidi1, Muhammad Rizwan Khan1
1Centre of Excellence ENSEMBLE3 Sp. z o. o., Wolczynska Str. 133, 01-919, Warsaw, Poland.
Noble gases, commonly thought inert, can function as defects in oxides. This research shows noble gas defects alter material properties by affecting electron states and conduction bands.
Area of Science:
- Materials Science
- Solid State Physics
- Computational Chemistry
Background:
- Noble gases are conventionally considered chemically inert.
- Noble gas implantation is used in experiments as a reference standard.
- The impact of noble gas defects on functional oxide properties is largely unexplored.
Purpose of the Study:
- To investigate the effects of noble gas defects on functional oxide properties.
- To challenge the assumption of noble gas inertness in materials.
- To explore the potential of noble gases as functional defects.
Main Methods:
- Utilizing first-principles calculations.
- Analyzing the electronic structure and defect states in oxides.
- Simulating the influence of noble gas incorporation.
Main Results:
- Noble gas defects can decentralize localized defect states.
- Noble gas defects facilitate electron transfer to the conduction band.
- Significant alterations in material properties due to noble gas defects were observed.
Conclusions:
- Noble gases can act as functional defects in oxides.
- The inertness assumption for noble gases in materials science is challenged.
- Accurate material property assessment requires considering noble gas defects.
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