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Enhanced Microwave Commutation Quality Factor of Tunable Capacitors Based on SrTiO 3 Thin Films.

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Τίτλος: Enhanced Microwave Commutation Quality Factor of Tunable Capacitors Based on SrTiO 3 Thin Films.
Συγγραφείς: Tumarkin, Andrei, Bogdan, Alexey, Sapego, Eugeny, Korepanov, Oleg, Karamov, Artem
Πηγή: Molecules; Dec2025, Vol. 30 Issue 23, p4593, 13p
Θεματικοί όροι: Quality factor, Strontium titanate, Thin films, Ferroelectric crystals, Dielectric relaxation, Microwaves, Capacitors, Magnetron sputtering
Περίληψη: Thin films of strontium titanate were grown on a polycrystalline aluminum oxide substrate using magnetron sputtering. These films exhibit high structural quality and nonlinear properties, which make them promising for microwave applications. Planar capacitors based on SrTiO3 films demonstrated a tunability of 1.65 with a microwave Q-factor of at least 110 in the entire range of control voltages without deterioration of losses, and a slow capacitance relaxation level no more than 4%, which is significantly better than currently published data for planar ferroelectric elements. This is the first successful attempt to create a planar SrTiO3 capacitor on an alumina, which demonstrates a commutation quality factor CQF of 3300 at microwaves. [ABSTRACT FROM AUTHOR]
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Βάση Δεδομένων: Complementary Index
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  Data: Enhanced Microwave Commutation Quality Factor of Tunable Capacitors Based on SrTiO 3 Thin Films.
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  Data: <searchLink fieldCode="AR" term="%22Tumarkin%2C+Andrei%22">Tumarkin, Andrei</searchLink><br /><searchLink fieldCode="AR" term="%22Bogdan%2C+Alexey%22">Bogdan, Alexey</searchLink><br /><searchLink fieldCode="AR" term="%22Sapego%2C+Eugeny%22">Sapego, Eugeny</searchLink><br /><searchLink fieldCode="AR" term="%22Korepanov%2C+Oleg%22">Korepanov, Oleg</searchLink><br /><searchLink fieldCode="AR" term="%22Karamov%2C+Artem%22">Karamov, Artem</searchLink>
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  Data: Molecules; Dec2025, Vol. 30 Issue 23, p4593, 13p
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  Data: <searchLink fieldCode="DE" term="%22Quality+factor%22">Quality factor</searchLink><br /><searchLink fieldCode="DE" term="%22Strontium+titanate%22">Strontium titanate</searchLink><br /><searchLink fieldCode="DE" term="%22Thin+films%22">Thin films</searchLink><br /><searchLink fieldCode="DE" term="%22Ferroelectric+crystals%22">Ferroelectric crystals</searchLink><br /><searchLink fieldCode="DE" term="%22Dielectric+relaxation%22">Dielectric relaxation</searchLink><br /><searchLink fieldCode="DE" term="%22Microwaves%22">Microwaves</searchLink><br /><searchLink fieldCode="DE" term="%22Capacitors%22">Capacitors</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetron+sputtering%22">Magnetron sputtering</searchLink>
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  Data: Thin films of strontium titanate were grown on a polycrystalline aluminum oxide substrate using magnetron sputtering. These films exhibit high structural quality and nonlinear properties, which make them promising for microwave applications. Planar capacitors based on SrTiO<subscript>3</subscript> films demonstrated a tunability of 1.65 with a microwave Q-factor of at least 110 in the entire range of control voltages without deterioration of losses, and a slow capacitance relaxation level no more than 4%, which is significantly better than currently published data for planar ferroelectric elements. This is the first successful attempt to create a planar SrTiO<subscript>3</subscript> capacitor on an alumina, which demonstrates a commutation quality factor CQF of 3300 at microwaves. [ABSTRACT FROM AUTHOR]
– Name: Abstract
  Label:
  Group: Ab
  Data: <i>Copyright of Molecules is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.3390/molecules30234593
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 13
        StartPage: 4593
    Subjects:
      – SubjectFull: Quality factor
        Type: general
      – SubjectFull: Strontium titanate
        Type: general
      – SubjectFull: Thin films
        Type: general
      – SubjectFull: Ferroelectric crystals
        Type: general
      – SubjectFull: Dielectric relaxation
        Type: general
      – SubjectFull: Microwaves
        Type: general
      – SubjectFull: Capacitors
        Type: general
      – SubjectFull: Magnetron sputtering
        Type: general
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      – TitleFull: Enhanced Microwave Commutation Quality Factor of Tunable Capacitors Based on SrTiO 3 Thin Films.
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          Name:
            NameFull: Tumarkin, Andrei
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            NameFull: Bogdan, Alexey
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            NameFull: Sapego, Eugeny
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            NameFull: Korepanov, Oleg
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            NameFull: Karamov, Artem
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            – D: 01
              M: 12
              Text: Dec2025
              Type: published
              Y: 2025
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              Value: 30
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