In situ synchrotron X-ray diffraction study of the formation of TaB 2 from the elements in a laser heated diamond anvil cell

Björn Winkler, Erick A. Juarez-Arellano, Alexandra Friedrich, Lkhamsuren Bayarjargal, Florian Schröder, Jasmin Biehler, Victor Milman, Simon M. Clark, Jinyuan Yan

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

In situ synchrotron X-ray diffraction was used to observe the reaction induced by laser heating of a mixture of tantalum and boron in a diamond anvil cell. Laser heating at pressures of 12 and 24 GPa resulted in the formation of TaB2. The bulk modulus of TaB2 (B0 = 341(7) GPa) was determined from a fit of a second-order Birch-Murnaghan equation of state to the p-V data. Density functional theory based calculations complemented the experimental observations and were used to obtain the full tensor of elastic stiffness coefficients. The choice of the most appropriate exchange-correlation functional for the description of elastic properties is discussed.

Original languageEnglish
Pages (from-to)2059-2064
Number of pages6
JournalSolid State Sciences
Volume12
Issue number12
DOIs
Publication statusPublished - Dec 2010
Externally publishedYes

Fingerprint Dive into the research topics of 'In situ synchrotron X-ray diffraction study of the formation of TaB 2 from the elements in a laser heated diamond anvil cell'. Together they form a unique fingerprint.

Cite this