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Record 1 of 19972
Electron trapping and transport by supersonic solitons in one-dimensional systems
Author and Affiliation:
Zmuidzinas, J. S.(California Institute of Technology, Jet Propulsion Laboratory, Pasadena, Calif., United States)
Abstract: A one-dimensional chain of ions or molecules and electrons described by a Froehlich-type Hamiltonian with quartic phonon anharmonicities is investigated. It is shown that the anharmonic lattice supports supersonic solitons which under favorable circumstances may trap electrons and transport them along the lattice. For a lattice constant/soliton spatial extent quotient of the order of 0.1, rough estimates give electron trapping energies in the meV range. They imply a useful temperature range, up to tens of degrees K, for observing the new effect. The activation energy of a lattice soliton is proportional to the molecular mass and is therefore quite high (about 1 eV) for typical quasi-one-dimensional organic systems.
Publication Date: May 15, 1978
Document ID:
19790026405
(Acquired Dec 01, 1995)
Accession Number: 79A10418
Subject Category: NUCLEAR AND HIGH-ENERGY PHYSICS
Document Type: Journal Article
Publication Information: Physical Review B - Solid State; vol. 17
Publisher Information: United States
Contract/Grant/Task Num: NAS7-100
Financial Sponsor: NASA; United States
Organization Source: Jet Propulsion Lab., California Inst. of Tech.; Pasadena, CA, United States
Description: 7p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: CHARGE TRANSFER; ELECTRON MOBILITY; SOLITARY WAVES; SUPERSONIC SPEED; TRAPPED PARTICLES; WAVE PROPAGATION; ELECTRON PHONON INTERACTIONS; HAMILTONIAN FUNCTIONS; LATTICE PARAMETERS; ORGANIC COMPOUNDS; SCHROEDINGER EQUATION
Imprint And Other Notes: Physical Review B - Solid State, 3rd Series, vol. 17, May 15, 1978, p. 3919-3925.
Miscellaneous Notes: May 15, 1978, p. 3919-3925
Availability Source: Other Sources
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