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Updated: Jun 3, 2026
11:10
Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model
Published on: May 23, 2018
Using alloying to promote the subtle rhombohedral phase transition in vanadium
Byeongchan Lee1, Robert E Rudd, John E Klepeis
1Kyung Hee University, Yongin, Gyeonggi, Republic of Korea.
Summary
Alloying vanadium can stabilize its rhombohedral phase, reducing the pressure required for this structural transition. This finding offers a new method for designing robust exotic phases in materials science.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Computational Materials Science
Background:
- Pressure-induced phase transitions are crucial in materials science.
- Body-centered cubic vanadium is known to transition to a rhombohedral phase under pressure.
Purpose of the Study:
- To investigate the effect of alloying on the pressure-induced transition of vanadium.
- To determine if alloying can stabilize the rhombohedral phase of vanadium.
Main Methods:
- Density functional theory (DFT) calculations were employed.
- Full supercell calculations were performed, accounting for atomic relaxation and local bonding effects.
Main Results:
- Alloying was found to influence the body-centered cubic to rhombohedral phase transition in vanadium.
- Specific alloying strategies can enhance the stability of the rhombohedral phase.
- The pressure required to induce the transition is reduced by alloying.
Conclusions:
- Alloying provides a tunable parameter to control pressure-induced phase transitions.
- This research suggests a pathway for designing more robust exotic phases through material composition.
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