Nontrivial Quantum Effect of Defect-Induced Magnetic Moments in Spin Chains

Author: Nishino, Masamichi

Source: Journal of Nanoscience and Nanotechnology, Volume 6, Number 6, June 2006 , pp. 1854-1856(3)

Publisher: American Scientific Publishers

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Abstract:

Low dimensional strongly correlated systems have great potential for new quantum devices. Among them, quantum wires are actively investigated with development of new methods based on self-organized formation. For magnetic wires (chains), impurity doping, which causes inhomogeneity of magnetic interaction, can bring new magnetic properties to the systems. In the present study, the effect of inhomogeneity (defect) on magnetic chains with bond alternation is focused on. Defects induce local moments in the magnetic chains at low temperatures. However, depending on the relation of the distance between the defects, the magnetic profile is found to be drastically changed.

Keywords: LOCAL MAGNETIC MOMENT; SPIN CHAIN; DEFECT; LOCAL MAGNETIC SUSCEPTIBILITY

Document Type: Short communication

DOI: http://dx.doi.org/10.1166/jnn.2006.207

Publication date: 2006-06-01

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Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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