Phonon dispersion of β-Sc

W. Petry; J. Trampenau; C. Herzig

doi:10.1103/PhysRevB.48.881

Phonon dispersion of β-Sc

W. Petry
, J. Trampenau
, C. Herzig

Institut Laue-Langevin
University of Münster

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

The phonon dispersion has been measured in the high-temperature bcc phase of a group-III metal (one d electron). In spite of its simple monatomic Bravais lattice the vibrational behavior of β-Sc is very anisotropic: a valley of low-energy and strongly damped phonons extends along the Brillouin-zone surface. These large-amplitude vibrations displace the lattice towards the stacking sequence of the low-temperature hcp phase and the hitherto unobserved ω structure, and are interpreted as dynamical precursor fluctuations towards the reconstructive phase transitions.

Original language	English
Pages (from-to)	881-886
Number of pages	6
Journal	Physical Review B
Volume	48
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevB.48.881
State	Published - 1993
Externally published	Yes

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title = "Phonon dispersion of β-Sc",

abstract = "The phonon dispersion has been measured in the high-temperature bcc phase of a group-III metal (one d electron). In spite of its simple monatomic Bravais lattice the vibrational behavior of β-Sc is very anisotropic: a valley of low-energy and strongly damped phonons extends along the Brillouin-zone surface. These large-amplitude vibrations displace the lattice towards the stacking sequence of the low-temperature hcp phase and the hitherto unobserved ω structure, and are interpreted as dynamical precursor fluctuations towards the reconstructive phase transitions.",

author = "W. Petry and J. Trampenau and C. Herzig",

year = "1993",

doi = "10.1103/PhysRevB.48.881",

language = "English",

volume = "48",

pages = "881--886",

journal = "Physical Review B",

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publisher = "American Institute of Physics",

number = "2",

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T1 - Phonon dispersion of β-Sc

AU - Petry, W.

AU - Trampenau, J.

AU - Herzig, C.

PY - 1993

Y1 - 1993

N2 - The phonon dispersion has been measured in the high-temperature bcc phase of a group-III metal (one d electron). In spite of its simple monatomic Bravais lattice the vibrational behavior of β-Sc is very anisotropic: a valley of low-energy and strongly damped phonons extends along the Brillouin-zone surface. These large-amplitude vibrations displace the lattice towards the stacking sequence of the low-temperature hcp phase and the hitherto unobserved ω structure, and are interpreted as dynamical precursor fluctuations towards the reconstructive phase transitions.

AB - The phonon dispersion has been measured in the high-temperature bcc phase of a group-III metal (one d electron). In spite of its simple monatomic Bravais lattice the vibrational behavior of β-Sc is very anisotropic: a valley of low-energy and strongly damped phonons extends along the Brillouin-zone surface. These large-amplitude vibrations displace the lattice towards the stacking sequence of the low-temperature hcp phase and the hitherto unobserved ω structure, and are interpreted as dynamical precursor fluctuations towards the reconstructive phase transitions.

UR - https://www.scopus.com/pages/publications/0000234206

U2 - 10.1103/PhysRevB.48.881

DO - 10.1103/PhysRevB.48.881

M3 - Article

AN - SCOPUS:0000234206

SN - 0163-1829

VL - 48

SP - 881

EP - 886

JO - Physical Review B

JF - Physical Review B

IS - 2

ER -

Phonon dispersion of β-Sc

Abstract

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