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Ultrafast spectroscopy of the quantum Hall ferromagnet

Su, B. and Schröter, Patrick and Heitmann, Detlef and Perakis, Ilias. E. and Wegscheider, Werner and Schüller, Christian (2006) Ultrafast spectroscopy of the quantum Hall ferromagnet. Physica E Low-dimensional Systems and Nanostructures 34 (1-2), pp. 381-384.

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Abstract

We report ultrafast spectroscopy experiments at the ν=1 quantum Hall state of a high-mobility two-dimensional electron system in a GaAs single quantum well. By spectrally resolved four-wave-mixing measurements we investigate the coherent dynamics of photo-excited electron–hole pairs and find extraordinarily long decoherence times for electrons in the upper spin level around ν=1. We interpret the ...

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Item Type:Article
Date:August 2006
Institutions:Physics > Institute of Experimental and Applied Physics > Retired Professors > Group Werner Wegscheider
Identification Number:
ValueType
10.1016/j.physe.2006.03.092DOI
Classification:
NotationType
78.47.+pPACS
Keywords:Ultrafast spectroscopy; Four-wave mixing; Skyrmions
Subjects:500 Science > 530 Physics
Status:Published
Refereed:Unknown
Created at the University of Regensburg:Unknown
Owner: Martin Kaiser
Deposited On:25 Jan 2010 13:18
Last Modified:13 Mar 2014 12:31
Item ID:12195
Owner Only: item control page

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