liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Superhard Semiconducting Optically Transparent High Pressure Phase of Boron
University of Bayreuth.
University of Bayreuth.
University of Bayreuth.
Swiss Norwegian Beam Lines ESRF.
Show others and affiliations
2009 (English)In: PHYSICAL REVIEW LETTERS, ISSN 0031-9007, Vol. 102, no 18, 185501- p.Article in journal (Refereed) Published
Abstract [en]

An orthorhombic (space group Pnnm) boron phase was synthesized at pressures above 9 GPa and high temperature, and it was demonstrated to be stable at least up to 30 GPa. The structure, determined by single-crystal x-ray diffraction, consists of B-12 icosahedra and B-2 dumbbells. The charge density distribution obtained from experimental data and ab initio calculations suggests covalent chemical bonding in this phase. Strong covalent interatomic interactions explain the low compressibility value (bulk modulus is K-300=227 GPa) and high hardness of high-pressure boron (Vickers hardness H-V=58 GPa), after diamond the second hardest elemental material.

Place, publisher, year, edition, pages
2009. Vol. 102, no 18, 185501- p.
National Category
Natural Sciences
URN: urn:nbn:se:liu:diva-18542DOI: 10.1103/PhysRevLett.102.185501OAI: diva2:220389
Available from: 2009-06-01 Created: 2009-06-01 Last updated: 2010-04-08

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Mikhaylushkin, ArkadyAbrikosov, IgorSimak, Sergey
By organisation
Theoretical Physics The Institute of Technology
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 25 hits
ReferencesLink to record
Permanent link

Direct link