Viscoelastic behavior in a normal Fermi liquid

Abstract Effective elastic coefficients for a normal Fermi liquid at finite frequency ω and wave vectorq are calculated microscopically from the Landau kinetic equation. We find in general that there are three elastic moduli in a normal Fermi liquid. One is just the usual bulk modulus and the other...
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Gespeichert in:

Autor*in:	Bedell, Kevin [verfasserIn] Pethick, C. J.

Format:	Artikel
Sprache:	Englisch

Erschienen:	1982

Schlagwörter:	Attenuation Shear Modulus Magnetic Material Kinetic Equation Bulk Modulus

Anmerkung:	© Plenum Publishing Corporation 1982

Übergeordnetes Werk:	Enthalten in: Journal of low temperature physics - Kluwer Academic Publishers-Plenum Publishers, 1969, 49(1982), 3-4 vom: Nov., Seite 213-225
Übergeordnetes Werk:	volume:49 ; year:1982 ; number:3-4 ; month:11 ; pages:213-225

Links:	Volltext

DOI / URN:	10.1007/BF00681588

Katalog-ID:	OLC2036755496

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520			\|a Abstract Effective elastic coefficients for a normal Fermi liquid at finite frequency ω and wave vectorq are calculated microscopically from the Landau kinetic equation. We find in general that there are three elastic moduli in a normal Fermi liquid. One is just the usual bulk modulus and the other two are associated with the transverse and longitudinal shears of the liquid. This is in contrast to the viscoelastic model, in which a single modulus characterizes both transverse and longitudinal shear. The shear moduli that we have calculated are functions of ω/qvF, wherevF is the Fermi velocity, and they become equal only when ω/q is much larger thanvF. In this limit we show that a viscoelastic model provides a reasonable quantitative description of the propagation and attenuation of the collective modes of a normal Fermi liquid. We also consider the applicability of the viscoelastic model $ to^{3} $He and find that it provides a reasonable first approximation to longitudinal sound and only a crude first approximation to transverse sound.
650		4	\|a Attenuation
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allfields	10.1007/BF00681588 doi (DE-627)OLC2036755496 (DE-He213)BF00681588-p DE-627 ger DE-627 rakwb eng 530 VZ Bedell, Kevin verfasserin aut Viscoelastic behavior in a normal Fermi liquid 1982 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Plenum Publishing Corporation 1982 Abstract Effective elastic coefficients for a normal Fermi liquid at finite frequency ω and wave vectorq are calculated microscopically from the Landau kinetic equation. We find in general that there are three elastic moduli in a normal Fermi liquid. One is just the usual bulk modulus and the other two are associated with the transverse and longitudinal shears of the liquid. This is in contrast to the viscoelastic model, in which a single modulus characterizes both transverse and longitudinal shear. The shear moduli that we have calculated are functions of ω/qvF, wherevF is the Fermi velocity, and they become equal only when ω/q is much larger thanvF. In this limit we show that a viscoelastic model provides a reasonable quantitative description of the propagation and attenuation of the collective modes of a normal Fermi liquid. We also consider the applicability of the viscoelastic model $ to^{3} $He and find that it provides a reasonable first approximation to longitudinal sound and only a crude first approximation to transverse sound. Attenuation Shear Modulus Magnetic Material Kinetic Equation Bulk Modulus Pethick, C. J. aut Enthalten in Journal of low temperature physics Kluwer Academic Publishers-Plenum Publishers, 1969 49(1982), 3-4 vom: Nov., Seite 213-225 (DE-627)129546267 (DE-600)218311-0 (DE-576)014996642 0022-2291 nnns volume:49 year:1982 number:3-4 month:11 pages:213-225 https://doi.org/10.1007/BF00681588 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_30 GBV_ILN_32 GBV_ILN_40 GBV_ILN_59 GBV_ILN_70 GBV_ILN_170 GBV_ILN_2006 GBV_ILN_2185 GBV_ILN_2192 GBV_ILN_4046 GBV_ILN_4126 GBV_ILN_4306 GBV_ILN_4323 GBV_ILN_4700 AR 49 1982 3-4 11 213-225
spelling	10.1007/BF00681588 doi (DE-627)OLC2036755496 (DE-He213)BF00681588-p DE-627 ger DE-627 rakwb eng 530 VZ Bedell, Kevin verfasserin aut Viscoelastic behavior in a normal Fermi liquid 1982 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Plenum Publishing Corporation 1982 Abstract Effective elastic coefficients for a normal Fermi liquid at finite frequency ω and wave vectorq are calculated microscopically from the Landau kinetic equation. We find in general that there are three elastic moduli in a normal Fermi liquid. One is just the usual bulk modulus and the other two are associated with the transverse and longitudinal shears of the liquid. This is in contrast to the viscoelastic model, in which a single modulus characterizes both transverse and longitudinal shear. The shear moduli that we have calculated are functions of ω/qvF, wherevF is the Fermi velocity, and they become equal only when ω/q is much larger thanvF. In this limit we show that a viscoelastic model provides a reasonable quantitative description of the propagation and attenuation of the collective modes of a normal Fermi liquid. We also consider the applicability of the viscoelastic model $ to^{3} $He and find that it provides a reasonable first approximation to longitudinal sound and only a crude first approximation to transverse sound. Attenuation Shear Modulus Magnetic Material Kinetic Equation Bulk Modulus Pethick, C. J. aut Enthalten in Journal of low temperature physics Kluwer Academic Publishers-Plenum Publishers, 1969 49(1982), 3-4 vom: Nov., Seite 213-225 (DE-627)129546267 (DE-600)218311-0 (DE-576)014996642 0022-2291 nnns volume:49 year:1982 number:3-4 month:11 pages:213-225 https://doi.org/10.1007/BF00681588 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_30 GBV_ILN_32 GBV_ILN_40 GBV_ILN_59 GBV_ILN_70 GBV_ILN_170 GBV_ILN_2006 GBV_ILN_2185 GBV_ILN_2192 GBV_ILN_4046 GBV_ILN_4126 GBV_ILN_4306 GBV_ILN_4323 GBV_ILN_4700 AR 49 1982 3-4 11 213-225
allfields_unstemmed	10.1007/BF00681588 doi (DE-627)OLC2036755496 (DE-He213)BF00681588-p DE-627 ger DE-627 rakwb eng 530 VZ Bedell, Kevin verfasserin aut Viscoelastic behavior in a normal Fermi liquid 1982 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Plenum Publishing Corporation 1982 Abstract Effective elastic coefficients for a normal Fermi liquid at finite frequency ω and wave vectorq are calculated microscopically from the Landau kinetic equation. We find in general that there are three elastic moduli in a normal Fermi liquid. One is just the usual bulk modulus and the other two are associated with the transverse and longitudinal shears of the liquid. This is in contrast to the viscoelastic model, in which a single modulus characterizes both transverse and longitudinal shear. The shear moduli that we have calculated are functions of ω/qvF, wherevF is the Fermi velocity, and they become equal only when ω/q is much larger thanvF. In this limit we show that a viscoelastic model provides a reasonable quantitative description of the propagation and attenuation of the collective modes of a normal Fermi liquid. We also consider the applicability of the viscoelastic model $ to^{3} $He and find that it provides a reasonable first approximation to longitudinal sound and only a crude first approximation to transverse sound. Attenuation Shear Modulus Magnetic Material Kinetic Equation Bulk Modulus Pethick, C. J. aut Enthalten in Journal of low temperature physics Kluwer Academic Publishers-Plenum Publishers, 1969 49(1982), 3-4 vom: Nov., Seite 213-225 (DE-627)129546267 (DE-600)218311-0 (DE-576)014996642 0022-2291 nnns volume:49 year:1982 number:3-4 month:11 pages:213-225 https://doi.org/10.1007/BF00681588 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_30 GBV_ILN_32 GBV_ILN_40 GBV_ILN_59 GBV_ILN_70 GBV_ILN_170 GBV_ILN_2006 GBV_ILN_2185 GBV_ILN_2192 GBV_ILN_4046 GBV_ILN_4126 GBV_ILN_4306 GBV_ILN_4323 GBV_ILN_4700 AR 49 1982 3-4 11 213-225
allfieldsGer	10.1007/BF00681588 doi (DE-627)OLC2036755496 (DE-He213)BF00681588-p DE-627 ger DE-627 rakwb eng 530 VZ Bedell, Kevin verfasserin aut Viscoelastic behavior in a normal Fermi liquid 1982 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Plenum Publishing Corporation 1982 Abstract Effective elastic coefficients for a normal Fermi liquid at finite frequency ω and wave vectorq are calculated microscopically from the Landau kinetic equation. We find in general that there are three elastic moduli in a normal Fermi liquid. One is just the usual bulk modulus and the other two are associated with the transverse and longitudinal shears of the liquid. This is in contrast to the viscoelastic model, in which a single modulus characterizes both transverse and longitudinal shear. The shear moduli that we have calculated are functions of ω/qvF, wherevF is the Fermi velocity, and they become equal only when ω/q is much larger thanvF. In this limit we show that a viscoelastic model provides a reasonable quantitative description of the propagation and attenuation of the collective modes of a normal Fermi liquid. We also consider the applicability of the viscoelastic model $ to^{3} $He and find that it provides a reasonable first approximation to longitudinal sound and only a crude first approximation to transverse sound. Attenuation Shear Modulus Magnetic Material Kinetic Equation Bulk Modulus Pethick, C. J. aut Enthalten in Journal of low temperature physics Kluwer Academic Publishers-Plenum Publishers, 1969 49(1982), 3-4 vom: Nov., Seite 213-225 (DE-627)129546267 (DE-600)218311-0 (DE-576)014996642 0022-2291 nnns volume:49 year:1982 number:3-4 month:11 pages:213-225 https://doi.org/10.1007/BF00681588 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_30 GBV_ILN_32 GBV_ILN_40 GBV_ILN_59 GBV_ILN_70 GBV_ILN_170 GBV_ILN_2006 GBV_ILN_2185 GBV_ILN_2192 GBV_ILN_4046 GBV_ILN_4126 GBV_ILN_4306 GBV_ILN_4323 GBV_ILN_4700 AR 49 1982 3-4 11 213-225
allfieldsSound	10.1007/BF00681588 doi (DE-627)OLC2036755496 (DE-He213)BF00681588-p DE-627 ger DE-627 rakwb eng 530 VZ Bedell, Kevin verfasserin aut Viscoelastic behavior in a normal Fermi liquid 1982 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Plenum Publishing Corporation 1982 Abstract Effective elastic coefficients for a normal Fermi liquid at finite frequency ω and wave vectorq are calculated microscopically from the Landau kinetic equation. We find in general that there are three elastic moduli in a normal Fermi liquid. One is just the usual bulk modulus and the other two are associated with the transverse and longitudinal shears of the liquid. This is in contrast to the viscoelastic model, in which a single modulus characterizes both transverse and longitudinal shear. The shear moduli that we have calculated are functions of ω/qvF, wherevF is the Fermi velocity, and they become equal only when ω/q is much larger thanvF. In this limit we show that a viscoelastic model provides a reasonable quantitative description of the propagation and attenuation of the collective modes of a normal Fermi liquid. We also consider the applicability of the viscoelastic model $ to^{3} $He and find that it provides a reasonable first approximation to longitudinal sound and only a crude first approximation to transverse sound. Attenuation Shear Modulus Magnetic Material Kinetic Equation Bulk Modulus Pethick, C. J. aut Enthalten in Journal of low temperature physics Kluwer Academic Publishers-Plenum Publishers, 1969 49(1982), 3-4 vom: Nov., Seite 213-225 (DE-627)129546267 (DE-600)218311-0 (DE-576)014996642 0022-2291 nnns volume:49 year:1982 number:3-4 month:11 pages:213-225 https://doi.org/10.1007/BF00681588 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_30 GBV_ILN_32 GBV_ILN_40 GBV_ILN_59 GBV_ILN_70 GBV_ILN_170 GBV_ILN_2006 GBV_ILN_2185 GBV_ILN_2192 GBV_ILN_4046 GBV_ILN_4126 GBV_ILN_4306 GBV_ILN_4323 GBV_ILN_4700 AR 49 1982 3-4 11 213-225
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title_auth	Viscoelastic behavior in a normal Fermi liquid
abstract	Abstract Effective elastic coefficients for a normal Fermi liquid at finite frequency ω and wave vectorq are calculated microscopically from the Landau kinetic equation. We find in general that there are three elastic moduli in a normal Fermi liquid. One is just the usual bulk modulus and the other two are associated with the transverse and longitudinal shears of the liquid. This is in contrast to the viscoelastic model, in which a single modulus characterizes both transverse and longitudinal shear. The shear moduli that we have calculated are functions of ω/qvF, wherevF is the Fermi velocity, and they become equal only when ω/q is much larger thanvF. In this limit we show that a viscoelastic model provides a reasonable quantitative description of the propagation and attenuation of the collective modes of a normal Fermi liquid. We also consider the applicability of the viscoelastic model $ to^{3} $He and find that it provides a reasonable first approximation to longitudinal sound and only a crude first approximation to transverse sound. © Plenum Publishing Corporation 1982
abstractGer	Abstract Effective elastic coefficients for a normal Fermi liquid at finite frequency ω and wave vectorq are calculated microscopically from the Landau kinetic equation. We find in general that there are three elastic moduli in a normal Fermi liquid. One is just the usual bulk modulus and the other two are associated with the transverse and longitudinal shears of the liquid. This is in contrast to the viscoelastic model, in which a single modulus characterizes both transverse and longitudinal shear. The shear moduli that we have calculated are functions of ω/qvF, wherevF is the Fermi velocity, and they become equal only when ω/q is much larger thanvF. In this limit we show that a viscoelastic model provides a reasonable quantitative description of the propagation and attenuation of the collective modes of a normal Fermi liquid. We also consider the applicability of the viscoelastic model $ to^{3} $He and find that it provides a reasonable first approximation to longitudinal sound and only a crude first approximation to transverse sound. © Plenum Publishing Corporation 1982
abstract_unstemmed	Abstract Effective elastic coefficients for a normal Fermi liquid at finite frequency ω and wave vectorq are calculated microscopically from the Landau kinetic equation. We find in general that there are three elastic moduli in a normal Fermi liquid. One is just the usual bulk modulus and the other two are associated with the transverse and longitudinal shears of the liquid. This is in contrast to the viscoelastic model, in which a single modulus characterizes both transverse and longitudinal shear. The shear moduli that we have calculated are functions of ω/qvF, wherevF is the Fermi velocity, and they become equal only when ω/q is much larger thanvF. In this limit we show that a viscoelastic model provides a reasonable quantitative description of the propagation and attenuation of the collective modes of a normal Fermi liquid. We also consider the applicability of the viscoelastic model $ to^{3} $He and find that it provides a reasonable first approximation to longitudinal sound and only a crude first approximation to transverse sound. © Plenum Publishing Corporation 1982
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container_issue	3-4
title_short	Viscoelastic behavior in a normal Fermi liquid
url	https://doi.org/10.1007/BF00681588
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author2	Pethick, C. J.
author2Str	Pethick, C. J.
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doi_str	10.1007/BF00681588
up_date	2024-07-04T04:07:00.696Z
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