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Figure 7 | EPJ Quantum Technology

Figure 7

From: A model study of present-day Hall-effect circulators

Figure 7

Q -parameters of a three-port circulator, matched to the external impedance of 50Ω. The matching is optimized for filling factor \(\nu = 20\); here, we neglect the parasitic coupling between electrodes. Comparing with Figure 6, the bandwidth is greater, but the circulation performance decreases as the Shubnikov-de Haas regime is approached.

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