Raman spetroscopy of B12As2 under high pressure

JW Pomeroy, M Kuball, H Hubel, NWA van Uden, DJ Dunstan, R Nagarajan, JH Edgar

Research output: Contribution to journalArticle (Academic Journal)peer-review


We report a Raman spectroscopy study of B12As2 under hydrostatic pressure up to 15 GPa. Mode Gruneisen parameters were determined for the B12As2 phonon modes. Phonon modes attributed to the As-As chain have a weak pressure dependence (0.6-1.9 cm(-1) GPa(-1)) relative to inter- and intra-icosahedral vibrations (3.4-6.6 cm(-1) GPa(-1)). The pressure dependence of B12As2 phonon frequencies is compared to those reported for alpha-boron and the origin of the mode at 505 cm(-1) with its weak pressure dependence is discussed.
Translated title of the contributionRaman spetroscopy of B12As2 under high pressure
Original languageEnglish
Pages (from-to)910 - 912
Number of pages3
JournalJournal of Applied Physics
Volume96 (1)
Publication statusPublished - 2004

Bibliographical note

Publisher: American Institute of Physics


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