Raman spetroscopy of B12As2 under high pressure

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

Raman spetroscopy of B₁₂As₂ under high pressure

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

School of Physics

Research output: Contribution to journal › Article (Academic Journal) › peer-review

Abstract

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 contribution	Raman spetroscopy of B₁₂As₂ under high pressure
Original language	English
Pages (from-to)	910 - 912
Number of pages	3
Journal	Journal of Applied Physics
Volume	96 (1)
Publication status	Published - 2004

Bibliographical note

Publisher: American Institute of Physics

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title = "Raman spetroscopy of B12As2 under high pressure",

abstract = "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.",

author = "JW Pomeroy and M Kuball and H Hubel and {van Uden}, NWA and DJ Dunstan and R Nagarajan and JH Edgar",

note = "Publisher: American Institute of Physics",

year = "2004",

language = "English",

volume = "96 (1)",

pages = "910 -- 912",

journal = "Journal of Applied Physics",

issn = "1089-7550",

publisher = "American Institute of Physics (AIP)",

}

TY - JOUR

T1 - Raman spetroscopy of B12As2 under high pressure

AU - Pomeroy, JW

AU - Kuball, M

AU - Hubel, H

AU - van Uden, NWA

AU - Dunstan, DJ

AU - Nagarajan, R

AU - Edgar, JH

N1 - Publisher: American Institute of Physics

PY - 2004

Y1 - 2004

N2 - 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.

AB - 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.

M3 - Article (Academic Journal)

SN - 1089-7550

VL - 96 (1)

SP - 910

EP - 912

JO - Journal of Applied Physics

JF - Journal of Applied Physics