Electronically driven phonon anomalies in transition metal carbides

Michèle Gupta; A. J. Freeman

doi:10.1016/0375-9601(76)90070-0

Electronically driven phonon anomalies in transition metal carbides

Michèle Gupta^*, A. J. Freeman

^*Corresponding author for this work

Physics and Astronomy

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

8 Scopus citations

Abstract

Large maxima in the generalized susceptibility of χ(q) of TaC calculated from its APW band structure are found to correlate very well with observed soft phonon modes. Such maxima are not found for HfC where phonon anomalies are not observed.

Original language	English (US)
Pages (from-to)	291-293
Number of pages	3
Journal	Physics Letters A
Volume	57
Issue number	3
DOIs	https://doi.org/10.1016/0375-9601(76)90070-0
State	Published - Jun 14 1976

Funding

~ Supported by Air Force Office of Scientific Research, Na-tional Science Foundation and Energy Research and Devel-opment Administration. * On leave from Le Centre de Mécanique Ondulatoire Appli-quée du Centre National de Ia Recherche Scientifique, 23 rue du Maroc, 75019 Paris.

ASJC Scopus subject areas

General Physics and Astronomy

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10.1016/0375-9601(76)90070-0

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title = "Electronically driven phonon anomalies in transition metal carbides",

abstract = "Large maxima in the generalized susceptibility of χ(q) of TaC calculated from its APW band structure are found to correlate very well with observed soft phonon modes. Such maxima are not found for HfC where phonon anomalies are not observed.",

author = "Mich{\`e}le Gupta and Freeman, \{A. J.\}",

note = "Funding Information: \textasciitilde{} Supported by Air Force Office of Scientific Research, Na-tional Science Foundation and Energy Research and Devel-opment Administration. * On leave from Le Centre de M{\'e}canique Ondulatoire Appli-qu{\'e}e du Centre National de Ia Recherche Scientifique, 23 rue du Maroc, 75019 Paris.",

year = "1976",

month = jun,

day = "14",

doi = "10.1016/0375-9601(76)90070-0",

language = "English (US)",

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pages = "291--293",

journal = "Physics Letters A",

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T1 - Electronically driven phonon anomalies in transition metal carbides

AU - Gupta, Michèle

AU - Freeman, A. J.

N1 - Funding Information: ~ Supported by Air Force Office of Scientific Research, Na-tional Science Foundation and Energy Research and Devel-opment Administration. * On leave from Le Centre de Mécanique Ondulatoire Appli-quée du Centre National de Ia Recherche Scientifique, 23 rue du Maroc, 75019 Paris.

PY - 1976/6/14

Y1 - 1976/6/14

N2 - Large maxima in the generalized susceptibility of χ(q) of TaC calculated from its APW band structure are found to correlate very well with observed soft phonon modes. Such maxima are not found for HfC where phonon anomalies are not observed.

AB - Large maxima in the generalized susceptibility of χ(q) of TaC calculated from its APW band structure are found to correlate very well with observed soft phonon modes. Such maxima are not found for HfC where phonon anomalies are not observed.

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U2 - 10.1016/0375-9601(76)90070-0

DO - 10.1016/0375-9601(76)90070-0

M3 - Article

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JF - Physics Letters A

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ER -

Electronically driven phonon anomalies in transition metal carbides

Abstract

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ASJC Scopus subject areas

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