Exchange-Induced Magnetic Dipole Mechanism of Magnon Sideband

Abstract:

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We propose a new mechanism of exciton-magnon absorption in the 1D Heisenberg antiferromagnet KCuF3. It yields the correct description of the relative intensity of the spectral lines in both polarizations E c and E‖c. The magnon density of states has been calculated. The origin of the fine sideband structure in KCuF3 can be explained. The sharp magnon lines, observed in Ref. [1], correspond to the low energy singularities in the magnon density of states.

Info:

Periodical:

Solid State Phenomena (Volumes 168-169)

Main Theme:

Edited by:

V. Ustinov

Pages:

113-116

DOI:

10.4028/www.scientific.net/SSP.168-169.113

Citation:

M. V. Eremin et al., "Exchange-Induced Magnetic Dipole Mechanism of Magnon Sideband", Solid State Phenomena, Vols. 168-169, pp. 113-116, 2011

Online since:

December 2010

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Price:

$35.00

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