On the dynamic form factor of an electron liquid

R. K. Kalia; G. Mukhopadhyay

doi:10.1016/0038-1098(74)91354-4

On the dynamic form factor of an electron liquid

R. K. Kalia
, G. Mukhopadhyay

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

12 Scopus citations

Abstract

The mean field theories of an electron liquid at metallic densities, which go beyond the RPA, and which have been fairly successful so far, are shown to be inadequate when tested against phenomena involving high frequencies. It is also shown that by making a simple Gaussian ansatz for the imaginery part of the response function, χ″(q,ω), and using the zeroth, the first and the third frequency moments of density spectral function to determine the unknown parameters in χ″(q,ω), it is possible to understand at least semiquantitatively the available experimental information regarding the dynamic form factor. Implications of the present analysis as regards the further refinement of the present theories are indicated. © 1974.

Original language	English
Pages (from-to)	1243-1247
Number of pages	5
Journal	Solid State Communications
Volume	15
Issue number	8
DOIs	https://doi.org/10.1016/0038-1098(74)91354-4
State	Published - Oct 15 1974
Externally published	Yes

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title = "On the dynamic form factor of an electron liquid",

abstract = "The mean field theories of an electron liquid at metallic densities, which go beyond the RPA, and which have been fairly successful so far, are shown to be inadequate when tested against phenomena involving high frequencies. It is also shown that by making a simple Gaussian ansatz for the imaginery part of the response function, χ″(q,ω), and using the zeroth, the first and the third frequency moments of density spectral function to determine the unknown parameters in χ″(q,ω), it is possible to understand at least semiquantitatively the available experimental information regarding the dynamic form factor. Implications of the present analysis as regards the further refinement of the present theories are indicated. {\textcopyright} 1974.",

author = "Kalia, \{R. K.\} and G. Mukhopadhyay",

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doi = "10.1016/0038-1098(74)91354-4",

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T1 - On the dynamic form factor of an electron liquid

AU - Kalia, R. K.

AU - Mukhopadhyay, G.

PY - 1974/10/15

Y1 - 1974/10/15

N2 - The mean field theories of an electron liquid at metallic densities, which go beyond the RPA, and which have been fairly successful so far, are shown to be inadequate when tested against phenomena involving high frequencies. It is also shown that by making a simple Gaussian ansatz for the imaginery part of the response function, χ″(q,ω), and using the zeroth, the first and the third frequency moments of density spectral function to determine the unknown parameters in χ″(q,ω), it is possible to understand at least semiquantitatively the available experimental information regarding the dynamic form factor. Implications of the present analysis as regards the further refinement of the present theories are indicated. © 1974.

AB - The mean field theories of an electron liquid at metallic densities, which go beyond the RPA, and which have been fairly successful so far, are shown to be inadequate when tested against phenomena involving high frequencies. It is also shown that by making a simple Gaussian ansatz for the imaginery part of the response function, χ″(q,ω), and using the zeroth, the first and the third frequency moments of density spectral function to determine the unknown parameters in χ″(q,ω), it is possible to understand at least semiquantitatively the available experimental information regarding the dynamic form factor. Implications of the present analysis as regards the further refinement of the present theories are indicated. © 1974.

UR - https://www.scopus.com/pages/publications/0016114813

U2 - 10.1016/0038-1098(74)91354-4

DO - 10.1016/0038-1098(74)91354-4

M3 - Article

SN - 0038-1098

VL - 15

SP - 1243

EP - 1247

JO - Solid State Communications

JF - Solid State Communications

IS - 8

ER -

On the dynamic form factor of an electron liquid

Abstract

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