Magnetic flux quantum periodicity of the frequency of the on-chip detectable electromagnetic radiation from superconducting flux-flow-oscillators
Superconducting flux-flow-oscillators (FFOs) based on unidirectional flow of magnetic vortices in a single-long Josephson junction (JJ) and operating at 4.2 K are key elements of sub-terahertz integrated-receivers used in radio-astronomy and atmospheric science. Here, we report on the development of...
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creator | Chesca, Boris John, Daniel Gaifullin, Marat Cox, Jonathan Murphy, Aidan Savel'ev, Sergey Mellor, Christopher J. |
description | Superconducting flux-flow-oscillators (FFOs) based on unidirectional flow of magnetic vortices in a single-long Josephson junction (JJ) and operating at 4.2 K are key elements of sub-terahertz integrated-receivers used in radio-astronomy and atmospheric science. Here, we report on the development of sub-terahertz FFOs based on parallel JJ-arrays made of YBa2Cu3O7−δ thin films. Sharp multiple flux-flow resonances were observed in the temperature range 77–89 K in asymmetric JJ-arrays, suggesting that they can operate as a narrow-band FFO in sub-terahertz integrated-receivers at more practical temperatures than 4.2 K. We detected electromagnetic radiation (EM) emitted by symmetric JJ-arrays in the range of 30–45 K using on-chip build superconducting detectors based on single JJs. For both asymmetric and symmetric JJ-arrays, the frequency f of the emitted radiation could be tuned continuously by an applied magnetic flux Φ with a one-flux-quantum Φ0 periodicity. Remarkably, since f can be tuned continuously, there are no gaps in the frequency range of the emitted EM. The fundamental Φ0-periodicity of f(Φ) is similar in nature to a SQUID's voltage response V(Φ) and, consequently, using high-performance magnetic flux-to-field conversion and readout techniques, a sensitive field-to-frequency magnetometer can be developed. Incorporated into non-accessible micro/nanostructures as a magnetic sensor, it would allow precise measurements of magnetic-fields from a distance, without the need to measure it locally as the radiation is detected remotely. |
doi_str_mv | 10.1063/5.0021970 |
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Here, we report on the development of sub-terahertz FFOs based on parallel JJ-arrays made of YBa2Cu3O7−δ thin films. Sharp multiple flux-flow resonances were observed in the temperature range 77–89 K in asymmetric JJ-arrays, suggesting that they can operate as a narrow-band FFO in sub-terahertz integrated-receivers at more practical temperatures than 4.2 K. We detected electromagnetic radiation (EM) emitted by symmetric JJ-arrays in the range of 30–45 K using on-chip build superconducting detectors based on single JJs. For both asymmetric and symmetric JJ-arrays, the frequency f of the emitted radiation could be tuned continuously by an applied magnetic flux Φ with a one-flux-quantum Φ0 periodicity. Remarkably, since f can be tuned continuously, there are no gaps in the frequency range of the emitted EM. The fundamental Φ0-periodicity of f(Φ) is similar in nature to a SQUID's voltage response V(Φ) and, consequently, using high-performance magnetic flux-to-field conversion and readout techniques, a sensitive field-to-frequency magnetometer can be developed. Incorporated into non-accessible micro/nanostructures as a magnetic sensor, it would allow precise measurements of magnetic-fields from a distance, without the need to measure it locally as the radiation is detected remotely.</description><identifier>ISSN: 0003-6951</identifier><identifier>EISSN: 1077-3118</identifier><identifier>DOI: 10.1063/5.0021970</identifier><identifier>CODEN: APPLAB</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Applied physics ; Arrays ; Astronomy ; Asymmetry ; Electromagnetic radiation ; Fluid dynamics ; Fluid flow ; Frequency ranges ; Josephson junctions ; Magnetic flux ; Magnetometers ; Oscillators ; Periodic variations ; Receivers ; Superconducting quantum interference devices ; Superconductivity ; Terahertz frequencies ; Thin films ; YBCO superconductors</subject><ispartof>Applied physics letters, 2020-10, Vol.117 (14)</ispartof><rights>Author(s)</rights><rights>2020 Author(s). Published under license by AIP Publishing.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c362t-71b6072538d0384a245711103a217682d4a123138870815e50b700f16891cd03</citedby><cites>FETCH-LOGICAL-c362t-71b6072538d0384a245711103a217682d4a123138870815e50b700f16891cd03</cites><orcidid>0000-0001-9279-7771 ; 0000-0001-5987-7876 ; 0000-0002-9557-4941 ; 0000-0003-2771-230X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://pubs.aip.org/apl/article-lookup/doi/10.1063/5.0021970$$EHTML$$P50$$Gscitation$$H</linktohtml><link.rule.ids>314,778,782,792,4500,27907,27908,76135</link.rule.ids></links><search><creatorcontrib>Chesca, Boris</creatorcontrib><creatorcontrib>John, Daniel</creatorcontrib><creatorcontrib>Gaifullin, Marat</creatorcontrib><creatorcontrib>Cox, Jonathan</creatorcontrib><creatorcontrib>Murphy, Aidan</creatorcontrib><creatorcontrib>Savel'ev, Sergey</creatorcontrib><creatorcontrib>Mellor, Christopher J.</creatorcontrib><title>Magnetic flux quantum periodicity of the frequency of the on-chip detectable electromagnetic radiation from superconducting flux-flow-oscillators</title><title>Applied physics letters</title><description>Superconducting flux-flow-oscillators (FFOs) based on unidirectional flow of magnetic vortices in a single-long Josephson junction (JJ) and operating at 4.2 K are key elements of sub-terahertz integrated-receivers used in radio-astronomy and atmospheric science. Here, we report on the development of sub-terahertz FFOs based on parallel JJ-arrays made of YBa2Cu3O7−δ thin films. Sharp multiple flux-flow resonances were observed in the temperature range 77–89 K in asymmetric JJ-arrays, suggesting that they can operate as a narrow-band FFO in sub-terahertz integrated-receivers at more practical temperatures than 4.2 K. We detected electromagnetic radiation (EM) emitted by symmetric JJ-arrays in the range of 30–45 K using on-chip build superconducting detectors based on single JJs. For both asymmetric and symmetric JJ-arrays, the frequency f of the emitted radiation could be tuned continuously by an applied magnetic flux Φ with a one-flux-quantum Φ0 periodicity. Remarkably, since f can be tuned continuously, there are no gaps in the frequency range of the emitted EM. The fundamental Φ0-periodicity of f(Φ) is similar in nature to a SQUID's voltage response V(Φ) and, consequently, using high-performance magnetic flux-to-field conversion and readout techniques, a sensitive field-to-frequency magnetometer can be developed. Incorporated into non-accessible micro/nanostructures as a magnetic sensor, it would allow precise measurements of magnetic-fields from a distance, without the need to measure it locally as the radiation is detected remotely.</description><subject>Applied physics</subject><subject>Arrays</subject><subject>Astronomy</subject><subject>Asymmetry</subject><subject>Electromagnetic radiation</subject><subject>Fluid dynamics</subject><subject>Fluid flow</subject><subject>Frequency ranges</subject><subject>Josephson junctions</subject><subject>Magnetic flux</subject><subject>Magnetometers</subject><subject>Oscillators</subject><subject>Periodic variations</subject><subject>Receivers</subject><subject>Superconducting quantum interference devices</subject><subject>Superconductivity</subject><subject>Terahertz frequencies</subject><subject>Thin films</subject><subject>YBCO superconductors</subject><issn>0003-6951</issn><issn>1077-3118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kMtOwzAQRS0EEuWx4A8ssQIpMGMnsbtEFS-piE33kes4YJTGwXaAfgZ_jGlLWSCxmofO3Ks7hJwgXCCU_LK4AGA4FrBDRghCZBxR7pIRAPCsHBe4Tw5CeEljwTgfkc8H9dSZaDVt2uGDvg6qi8OC9sZbV1tt45K6hsZnQxtvXgfT6e3CdZl-tj2tTTQ6qnlrqGlT593iR9Or2qpoXZeu3YKGIelq19WDjrZ7WllmTeveMxe0bVsVnQ9HZK9RbTDHm3pIZjfXs8ldNn28vZ9cTTPNSxYzgfMSBCu4rIHLXLG8EIgIXDEUpWR1rpBx5FIKkFiYAuYCoMFSjlGnk0NyupbtvUu5Qqxe3OC75FixPJdjCQx4os7WlPYuBG-aqvd2ofyyQqi-H14V1ebhiT1fsylLXKXewm_O_4JVXzf_wX-VvwB9L4_1</recordid><startdate>20201005</startdate><enddate>20201005</enddate><creator>Chesca, Boris</creator><creator>John, Daniel</creator><creator>Gaifullin, Marat</creator><creator>Cox, Jonathan</creator><creator>Murphy, Aidan</creator><creator>Savel'ev, Sergey</creator><creator>Mellor, Christopher J.</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0001-9279-7771</orcidid><orcidid>https://orcid.org/0000-0001-5987-7876</orcidid><orcidid>https://orcid.org/0000-0002-9557-4941</orcidid><orcidid>https://orcid.org/0000-0003-2771-230X</orcidid></search><sort><creationdate>20201005</creationdate><title>Magnetic flux quantum periodicity of the frequency of the on-chip detectable electromagnetic radiation from superconducting flux-flow-oscillators</title><author>Chesca, Boris ; 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Here, we report on the development of sub-terahertz FFOs based on parallel JJ-arrays made of YBa2Cu3O7−δ thin films. Sharp multiple flux-flow resonances were observed in the temperature range 77–89 K in asymmetric JJ-arrays, suggesting that they can operate as a narrow-band FFO in sub-terahertz integrated-receivers at more practical temperatures than 4.2 K. We detected electromagnetic radiation (EM) emitted by symmetric JJ-arrays in the range of 30–45 K using on-chip build superconducting detectors based on single JJs. For both asymmetric and symmetric JJ-arrays, the frequency f of the emitted radiation could be tuned continuously by an applied magnetic flux Φ with a one-flux-quantum Φ0 periodicity. Remarkably, since f can be tuned continuously, there are no gaps in the frequency range of the emitted EM. The fundamental Φ0-periodicity of f(Φ) is similar in nature to a SQUID's voltage response V(Φ) and, consequently, using high-performance magnetic flux-to-field conversion and readout techniques, a sensitive field-to-frequency magnetometer can be developed. Incorporated into non-accessible micro/nanostructures as a magnetic sensor, it would allow precise measurements of magnetic-fields from a distance, without the need to measure it locally as the radiation is detected remotely.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/5.0021970</doi><tpages>5</tpages><orcidid>https://orcid.org/0000-0001-9279-7771</orcidid><orcidid>https://orcid.org/0000-0001-5987-7876</orcidid><orcidid>https://orcid.org/0000-0002-9557-4941</orcidid><orcidid>https://orcid.org/0000-0003-2771-230X</orcidid><oa>free_for_read</oa></addata></record> |
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subjects | Applied physics Arrays Astronomy Asymmetry Electromagnetic radiation Fluid dynamics Fluid flow Frequency ranges Josephson junctions Magnetic flux Magnetometers Oscillators Periodic variations Receivers Superconducting quantum interference devices Superconductivity Terahertz frequencies Thin films YBCO superconductors |
title | Magnetic flux quantum periodicity of the frequency of the on-chip detectable electromagnetic radiation from superconducting flux-flow-oscillators |
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