Properties Of Two-dimensional Electron Systems Research Articles

Correlational properties of two-dimensional electron systems in the surface states on liquid helium

Abstract The static structure factor and the correlation energy of the two-dimensional electron liquid are computed through numerical solution of the self-consistent integral equation which has been obtained in a way analogous to the corresponding three-dimensional problem; the result shows a good agreement with the Monte-Carlo data. The dielectric response function and the equation for the dynamic structure factor are derived in such a way as to satisfy the frequencymoment sum rules exactly up to those terms involving the pair correlation function; they also take account of the relaxation effect in the long-time behavior. Variational calculation of the surface states is re-examined, affecting the theoretical estimate on the lifetime of surface state electrons.

Yamada conference II on electronic properties of two-dimensional systems (third international conference)

Yamada conference II on electronic properties of two-dimensional systems (third international conference)

Correlational properties of two-dimensional electron systems in the surface states on liquid helium

The static structure factor and the correlation energy of the two-dimensional electron liquid are computed through numerical solution of the self-consistent integral equation which has been obtained in a way analogous to the corresponding three-dimensional problem; the result shows a good agreement with the Monte-Carlo data. The dielectric response function and the equation for the dynamic structure factor are derived in such a way as to satisfy the frequencymoment sum rules exactly up to those terms involving the pair correlation function; they also take account of the relaxation effect in the long-time behavior. Variational calculation of the surface states is re-examined, affecting the theoretical estimate on the lifetime of surface state electrons.

Book reviews

Abstract Abstract Electron and Ion Spectroscopy of Solids. Edited by L. Fiermans, J. Vennik and W. Dekeyser. (Plenum Publishing Corp., 1978.) [Pp. xi + 475.] $57·00. Ellipsometry and Polarized Light. By R. M. A. Azzam and M. M. Bashara. (North-Holland, 1977.) [Pp. ix + 529.] Physical Fluid Dynamics. By D. J. Tritton. (Van Nostrand Reinhold, 1977.) [Pp. xv + 362.] £5·50. Scope: Treatise/textbook. Level: Undergraduate/post graduate. Laser Induced Fusion and X-ray Laser Studies. Edited by S. F. Jacobs, M. O. Scully, M. Sargent III and C. D. Cantrell III. (Addison-Wesley, 1976.) [Pp. xi + 667.] $27·50. Scope: Conference Proceedings; library (reference). Level: For specialists only, specialist/post-graduate. Laser Photochemistry, Tunable Lasers and other Topics. Edited by S. F. Jacobs, M. Sargent III, M. O. Scully and C. T. Walker. (Addison-Wesley, 1976.) [Pp. xi + 470.] $23·50. Scope: Conference Proceedings, treatise/textbook, survey, library (reference). Level: Specialist/post-graduate. Physical Properties of Materials. By M. C. Lovell, A. J. Avery, M. W. Vernon. (Van Nostrand Reinhold, 1976.) [Pp. xii + 304.] £12·00 hardback, £5·00 paperback. Scope: Textbook, library. Level: Undergraduate, general reader. Focus on the Stars. Edited by H. Messel and S. T. Butler. (Heinemann, 1976/1977.) [Pp. 287.] £4·80. Scope: Comprehensive. Level: School and undergraduate, also general reader. High Power Lasers and Laser Plasmas. Edited by N. G. Basov. (Plenum Press, Consultants Bureau, 1978.) [Pp. viii + 241.] $47·40. Scope: Laser Physics. Level: Research. Laser Beam Propagation in the Atmosphere. By J. W. Strohbehn. (Springer-Verlag, 1978.) [Pp. xii + 325.] $46·00; DM 92. Scope: Specialist. Level: Research monograph. Picosecond Phenomena. Edited by C. V. Shank, E. P. Ippen and S. L. Shapiro. (Springer-Verlag, 1978.) [Pp. xii + 359.] $32·00; DM 64. Scope: Research monograph. Level: Postgraduate. Particles and Fields. Edited by D. H. Boal and A. N. Kamal. (Plenum Press, 1978.) [Pp. viii + 462.] $51·00. Scope: Theoretical Elementary Particle Physics. Level: Research. Atomic Energy Levels and Grotrian Diagrams (Volume II). By S. Bashkin and J. O. Stoner, Jr. (North-Holland, 1978.) [Pp. 600.] $80·00; Dfl 180·00. Coherence and Quantum Optics IV. Edited by Leonard Mastdel and Emil Wolf. (Plenum Press, 1978.) [Pp. xvi + 1011, Author and Subject Indexes, 13 pages.] £40·95. Proceedings of the Fourth Rochester Conference on Coherence and Quantum Optics, June 8-10, 1977. Level: High-level scholarship and research. Molecular Structure and Dynamics. By W. H. Flygare. (Prentice-Hall, 1978.) [Pp. xviii + 696.] £18·25. Current Topics in Materials Science (Volume 1). Edited by E. Kaldis. (North-Holland, 1978.) [Pp. xvi + 754.] Dfl 260.00, $115·50. Level: Research workers, University/Industry. Electronic Properties of Two-dimensional Systems. Edited by G. Dorda and P. J. Stiles. (North-Holland, 1978.) [Pp. xi + 578.] $100·00; Dfl 225·00, Scope: Very comprehensive (Conference Proceedings). Level: Research workers. Fluid Mechanics. By Ruth M. Rogers. (Routledge & Kegan Paul, 1978.) [Pp. x + 322.] £9·75. Level: Undergraduate. Optical Information Processing, Volume 2. Edited by E. S. Barrekete, G. W. Stroke, Y. E. Nesterikhin and W. E. Kock. (Plenum Publishing Corp., 1978.) [Pp. xi + 452.] $45·00. Scope: Seminar Proceedings. Level: Research. Detection of Optical and Infrared Radiation. By R. H. Kingston. (Springer-Verlag, Berlin, 1978.) [Pp. viii + 140.] DM 43; $21·50. Scope: Monograph. Level: 2nd/3rd Year Undergraduate and Postgraduate. Optical Shop Testing. Edited by Daniel Malacara. (John Wiley-Interscience, 1978.) [Pp. xix + 523.] £21·15; $38·00. Scope: Practical Manual. Level: Research. A Practical Introduction to Electronic Circuits. Edited by M. Hartley Jones. (Cambridge University Press, 1978.) [Pp. xii + 237.] £9·50. Vectors in Three-dimensional Space. By J. S. R. Chisholm. (Cambridge University Press, 1978.) [Pp. xii + 291.] Hardback £15·00; Soft cover £4·95. Magnetic Field Generation in Electrically Conducting Fluids. By H. K. Moffatt. (Cambridge University Press, 1978.) [Pp. x + 343.] £15·50. Level: Specialist/postgraduate. Scope: Monograph. Photoelectron Statistics. By B. Salbh. (Springer-Verlag, 1978.) [Pp. xiii + 441.] DM 68; $31·30. Level: Postgraduate and research. Thermoelectricity in Metallic Conductors. Edited by F. J. Blatt and P. A. Schboeder. (Plenum Press, 1978.) [Pp. x + 421.] £26·77. Scope: Conference Meeting. Level: Specialist/Postgraduate. The Force of Knowledge. The Scientific Dimension of Society. By J. M. Ziman. (Cambridge University Press, 1976-7.) [ix + 437 pp.] £4·75.

Collective excitations and electrodynamic behavior of electrons in a three-layer structure

A unified theoretical approach appropriate for investigating properties of two-dimensional electron systems, e.g., in the surface-space-charge layer of a metal-oxide-semiconductor junction or above the surface of liquid helium in a metal-helium-vapor system is presented. As an application of the theory we explore the possibility to study microscopically and macroscopically collective excitations in these and other complex geometries. Special emphasis is put on the implications of the theory to be drawn from the localization of the electron motion both perpendicular to the interface which is, e.g., the case at sufficiently low temperatures and parallel to it possibly occuring, e.g., at low densities and high static magnetic fields oriented perpendicular to the interface. It is illustrated why intrinsic defects in the crystalline structure of such systems are to be expected and that they should affect their equilibrium and transport properties, especially, in the vicinity of the transition to a liquid-like phase.