Control of the effective value of the critical current of the RF SQUID by the high-frequency electromagnetic field
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arXiv
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| Autori principali: | , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866908699633647616 |
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| author | Shnyrkov, V. I. Lyakhno, V. Yu. Kalenyuk, O. A. Mindich, D. G. Leha, O. O. Shapovalov, A. P. |
| author_facet | Shnyrkov, V. I. Lyakhno, V. Yu. Kalenyuk, O. A. Mindich, D. G. Leha, O. O. Shapovalov, A. P. |
| contents | An analysis of the influence of the high-frequency electromagnetic field on the amplitude-frequency and signal characteristics of RF SQUID and experimental verification are carried out. At low parameter , the RF SQUID behavior is well described analytically by the theoretical model. In experiment, basic operation scheme is used in which the interferometer is inductively connected to a resonant tank circuit driven by RF current at a frequency close to the resonance frequency of the tank. It is shown that parameter , which distinguishes between hysteretic and non-hysteretic regimes, can be effectively adjusted to a desired value by applying the high-frequency field of a certain amplitude and frequency much higher than tank resonant frequency. A significant increase in the conversion factor and sensitivity of the RF SQUID during this adjustment is discussed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_08072 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Control of the effective value of the critical current of the RF SQUID by the high-frequency electromagnetic field Shnyrkov, V. I. Lyakhno, V. Yu. Kalenyuk, O. A. Mindich, D. G. Leha, O. O. Shapovalov, A. P. Superconductivity An analysis of the influence of the high-frequency electromagnetic field on the amplitude-frequency and signal characteristics of RF SQUID and experimental verification are carried out. At low parameter , the RF SQUID behavior is well described analytically by the theoretical model. In experiment, basic operation scheme is used in which the interferometer is inductively connected to a resonant tank circuit driven by RF current at a frequency close to the resonance frequency of the tank. It is shown that parameter , which distinguishes between hysteretic and non-hysteretic regimes, can be effectively adjusted to a desired value by applying the high-frequency field of a certain amplitude and frequency much higher than tank resonant frequency. A significant increase in the conversion factor and sensitivity of the RF SQUID during this adjustment is discussed. |
| title | Control of the effective value of the critical current of the RF SQUID by the high-frequency electromagnetic field |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2512.08072 |