High-pressure form of elemental boron is covalent
N. Dubrovinskaia, L. Dubrovinsky, E. Yu. Zarechnaya, Y. Filinchuk, D., Chernyshov, V. Dmitriev, A. S. Mikhaylushkin, I. A. Abrikosov, S. I. Simak
TL;DR
This paper clarifies that a high-pressure phase of elemental boron, previously thought to be ionic, is actually a covalent form that has been known since 1965, challenging earlier assumptions.
Contribution
The study reveals that the high-pressure phase of boron is not ionic but covalent, correcting the scientific understanding of boron's high-pressure behavior.
Findings
The high-pressure phase of boron is covalent, not ionic.
This phase has been known since 1965 but was mischaracterized.
The correction impacts the understanding of boron's properties under pressure.
Abstract
Oganov et al report a discovery of an ionic high-pressure /hitherto unknown phase of boron/. We show that this phase has been known since 1965, and it is a covalent material.
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Taxonomy
TopicsBoron and Carbon Nanomaterials Research · Diamond and Carbon-based Materials Research · High-pressure geophysics and materials