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Start Over Author "Pfannkuche, Daniela" Publisher world scientific publishing company
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2. SPIN STRUCTURES IN INHOMOGENEOUS FRACTIONAL QUANTUM HALL SYSTEMS.

Author

Výborný, Karel and Pfannkuche, Daniela

Subjects
*SPINTRONICS, *QUANTUM Hall effect, *FERROMAGNETISM, *ELECTRONS, *MAGNETIC fields, *PHYSICS
Abstract

Transitions between spin polarized and spin singlet incompressible ground state of quantum Hall systems at filling factor ⅔ are studied by means of exact diagonalization with eight electrons. We observe a stable exactly half-polarized state becoming the absolute ground state around the transition point. This might be a candidate for the anomaly observed during the transition in optical experiments. The state reacts strongly to magnetic inhomogeneities but it prefers stripe-like spin structures to formation of domains. [ABSTRACT FROM AUTHOR]

Published
2004

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