Electron-electron scattering and ultrasonic attenuation in potassium

Sathish, S. ; Chaterjee, S. ; Awasthi, O. N. ; Gopal, E. S. R. (1986) Electron-electron scattering and ultrasonic attenuation in potassium Journal of Low Temperature Physics, 63 (5-6). pp. 423-429. ISSN 0022-2291

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Official URL: http://www.springerlink.com/content/p310v6v2558162...

Related URL: http://dx.doi.org/10.1007/BF00681490


The electron-electron scattering contribution to the ultrasonic attenuation in potassium at low temperatures is evaluated using the Landau Fermi liquid theory. The scattering function is evaluated using the approximation suggested by MacDonald and Geldart. The results are compared with theoretically evaluated electron-phonon scattering contributions. The results show that the electron-electron scattering contribution is of the same order as the electron-phonon scattering contribution in the 2-5 K range. Below 2 K the electron-electron scattering predominates.

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