Discover
/
Article

The pseudopotential panacea

JUL 01, 1979
Potentials for describing the behavior of valence electrons in solids have considerably advanced our understanding of real materials, including their optical spectra, bonding, superconductivity and surfaces.
Marvin L. Cohen

Webster’s dictionary defines panacea as a “remedy for all ills or difficulties; a cure‐all.” A pseudopotential is an approximation to the real potential an electron feels in a solid. In what sense can it be called a cure‐all? What are the ills it cures, the difficulties it overcomes or the problems it solves? And how does it help solve problems? Our object here will be to supply some answers to these questions and to describe the growing influence of theories involving pseudopotentials on solid state or condensed matter physics.

This article is only available in PDF format

References

  1. 1. A review of pseudopotential research is given in: M. L. Cohen, V. Heine, Solid State Physics 24, 37 (1970), as well as in references 2, 3 and 4.https://doi.org/SSPHAE

  2. 2. W. A. Harrison, Pseudopotentials in the Theory of Metals, Benjamin, New York (1966).

  3. 3. C. Kittel, Introduction to Solid State Physics, 5th ed., Wiley, New York (1976).

  4. 4. J. C. Phillips, Bonds and Bands in Semiconductors, Academic, New York (1973).

  5. 5. C. Herring, Phys. Rev. 57, 1169 (1940).https://doi.org/PHRVAO

  6. 6. J. C. Phillips, L. Kleinman, Phys. Rev. 116, 287 (1959).https://doi.org/PHRVAO

  7. 7. M. L. Cohen, Science 179, 1189 (1973).https://doi.org/SCIEAS

  8. 8. M. Schluter, J. R. Chelikowsky, S. G. Louie, M. L. Cohen, Phys. Rev. B12, 4200 (1975).https://doi.org/PRBMDO

  9. 9. J. R. Chelikowsky, M. L. Cohen, Phys. Rev. B14, 556 (1976).https://doi.org/PRBMDO

More about the authors

Marvin L. Cohen, University of California, Berkeley.

Related content
/
Article
Interviews now available to the public bring the famed physicist’s lesser-known early years to life.
/
Article
Graduate students in physics and astronomy struggle with mental health. Support from peers and advisers is critical; so is institutional change.
/
Article
Inside certain quantum systems, where randomness was thought to lurk, researchers—after a 40-year journey—have found order and unique wave patterns that stubbornly survive.
/
Article
A half century after the discovery of Hawking radiation, we are still dealing with the quantum puzzle it exposed.
This Content Appeared In
pt-cover_1979_07.jpeg

Volume 32, Number 7

Get PT newsletters in your inbox

pt_newsletter_card_blue.png
PT The Week in Physics

A collection of PT's content from the previous week delivered every Monday.

pt_newsletter_card_darkblue.png
PT New Issue Alert

Be notified about the new issue with links to highlights and the full TOC.

pt_newsletter_card_pink.png
PT Webinars & White Papers

The latest webinars, white papers and other informational resources.

By signing up you agree to allow AIP to send you email newsletters. You further agree to our privacy policy and terms of service.