Double-exciton component of the cyclotron spin-flip mode in a quantum Hall ferromagnet
S. Dickmann, V.M. Zhilin
TL;DR
This paper calculates the double-exciton component of the cyclotron spin-flip mode in a quantum Hall ferromagnet, revealing contributions to the excitation energy that are not captured by mean field methods, and compares results with experiments.
Contribution
It introduces a calculation of the double-exciton component of the CSFE in quantum Hall systems, highlighting effects beyond mean field approximations.
Findings
Double-exciton component significantly affects CSFE energy.
Results align with experimental data.
Mean field approaches do not capture this component.
Abstract
We report on the calculation of the cyclotron spin-flip excitation (CSFE) in a spin-polarized quantum Hall system at unit filling. This mode has a double-exciton component which contributes to the CSFE correlation energy but can not be found by means of a mean field approach. The result is compared with available experimental data.
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