# Super-long life time for 2D cyclotron spin-flip excitons

Source: [Super-long life time for 2D cyclotron spin-flip excitons](<https://www.sota2.com/research/paper/68fa31f71e209131ce883cf4>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T19:12:35.069Z

Authors: L.V. Kulik, A.V. Gorbunov, A.S. Zhuravlev, V.B. Timofeev, S. Dickmann, I.V. Kukushkin

Published: 2015-07-11T10:23:35.000Z

## Abstract

An experimental technique for the indirect manipulation and detection of electron spins entangled in two-dimensional magnetoexcitons has been developed. The kinetics of the spin relaxation has been investigated. Photoexcited spin-magnetoexcitons were found to exhibit extremely slow relaxation in specific quantum Hall systems, fabricated in high mobility GaAs/AlGaAs structures, namely, the relaxation time reaches values over one hundred microseconds. A qualitative explanation of this spin-relaxation kinetics is presented. Its temperature and magnetic field dependencies are discussed within the available theoretical framework.

## Recorded benchmark results

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1507.03089>)

[PDF](<https://arxiv.org/pdf/1507.03089.pdf>)