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Proceedings Paper

Dynamics of exchange interactions in a one dimensional magnetic quantum dot chain
Author(s): R. Amuda; A. Brinda
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Paper Abstract

Small magnetic structures have attracted a great deal of attraction owing to their special transport and magnetic properties. In a magnetic quantum dot array, the interdot exchange interaction leads to alignment of individual magnetization. In this paper, starting from the interaction energy between the neighboring dots, we set up an equation of motion for the magnetization. We use bosonic operators combined with the Holstein-Primakoff transformations in the semiclassical limits and arrive at Nonlinear Schrodinger equation. Localized solutions called solitons are identified for the collective excitations, which could be harnessed for data transfer.

Paper Details

Date Published: 11 February 2008
PDF: 5 pages
Proc. SPIE 6902, Quantum Dots, Particles, and Nanoclusters V, 690209 (11 February 2008); doi: 10.1117/12.767115
Show Author Affiliations
R. Amuda, PSG College of Technology (India)
A. Brinda, PSG College of Technology (India)

Published in SPIE Proceedings Vol. 6902:
Quantum Dots, Particles, and Nanoclusters V
Kurt G. Eyink; Frank Szmulowicz; Diana L. Huffaker, Editor(s)

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