Friedel-type oscillations in one-dimensional antiferromagnetic insulators

Baskaran, G. (1978) Friedel-type oscillations in one-dimensional antiferromagnetic insulators Physical Review Letters, 40 (23). pp. 1521-1524. ISSN 0031-9007

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Official URL: http://prl.aps.org/abstract/PRL/v40/i23/p1521_1

Related URL: http://dx.doi.org/10.1103/PhysRevLett.40.1521

Abstract

An impurity spin in one-dimensional spin- ½ X-Y and antiferromagnetic Heisenberg models is shown to induce decaying spatial oscillations of magnetization for finite magnetic field. The wavelength of oscillation changes with magnetic field. Since these systems can be described mathematically in terms of a degenerate gas of pseudofermions, their response to impurity perturbation is similar to the response of an electron gas to a localized static charge.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:1907
Deposited On:08 Oct 2010 11:37
Last Modified:16 May 2011 10:04

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