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Abbreviated Journal Title

Phys. Rev. B

Keywords

Physics; Condensed Matter

Abstract

Replacement of every other hydrogen atom in trans-polyacetylene by other atoms, such as fluorine, results in a simple linear polymer with two carbon atoms per unit cell of the polymer chain. In such polymers, dimerization can be induced or destroyed reversibly by the application of a uniaxial stress. As a consequence, the nonlinear optical properties can be switched dramatically between those of dimerized chains, which have degenerate ground states, and nondimerized chains, which have a nondegenerate ground state.

Journal Title

Physical Review B

Volume

42

Issue/Number

5

Publication Date

1-1-1990

Document Type

Note

Language

English

First Page

3187

Last Page

3189

WOS Identifier

WOS:A1990DU49700063

ISSN

0163-1829

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