Isotropic negative area compressibility over large pressure range in potassium beryllium fluoroborate and its potential applications in deep ultraviolet region

X. Jiang, S. Luo, L. Kang, P. Gong, Wenjiao Yao, H. Huang, W. Li, R. Huang, W. Wang, Y. Li, X. Li, X. Wu, P. Lu, L. Li, C. Chen, Z. Lin

Research output: Contribution to journalArticlepeer-review

Abstract

The very rare isotropic negative area compressibility is observed in KBBF and the related mechanism is investigated by combined high-pressure X-Ray Diffraction (XRD) experiments and first-principles calculations. The strong mechanical anisotropy leads to large Poisson's ratio and high figure of merit for acoustic-optics effect, giving KBBF potential applications as smart strain converters and deep-ultraviolet (DUV) acoustic-optic devices.
Original languageEnglish
Pages (from-to)4851–4857
JournalAdvanced Materials
Volume27
Issue number33
Early online date17 Jun 2015
DOIs
Publication statusPublished - 1 Sept 2015

Keywords

  • Acoustic-optics effects
  • Isotropic negative area compressibility
  • Poisson's ratio
  • Potassium beryllium fluoroborate

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