Structure and transport properties of ultrathin YBa2Cu3O7−x films

Vopilkin, E. A.; Vysheslavtsev, P. P.; Drozdov, Yu. N.; Nozdrin, Yu. N.; Павлов, С. А.; Парафин, А. Е.; Talanov, V. I.

doi:10.1134/1.567081

Cited by 3 publications

(2 citation statements)

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“…Superconductivity of Y123 films that were one or a few unit cells thick has been observed in multilayer structures of YBCO/PrBCO [30][31][32] but the transition temperature to the zero resistivity state, T co , is greatly reduced. Lowering of T co has also been observed in thin Y123 films deposited on single-crystal LaAlO 3 substrates [33].…”

Section: Discussionmentioning

confidence: 72%

Preparation of one to three unit cell thick powders and investigation of their magnetic and microwave properties

Blinov

Fleisher

Huhtinen

et al. 1997

Supercond. Sci. Technol.

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Nanocrystalline powders have been prepared by a citrate gel modification of the sol - gel technique. Using a relatively low temperature, , and (i) a process of extracting oxygen and reoxidizing the precursor powder or (ii) a sequence of vacuum annealing and prolonged heating in air, it was possible to avoid sintering of the particles. According to x-ray powder diffraction analysis the particles have orthorhombic structure pertinent to the phase. Measurements made by atomic force microscopy show that they have flat shape with two maxima in the thickness distribution, one at 1.2 nm and the other at 3.8 nm , corresponding to one or three orthorhombic unit cell lengths of the crystal. The average width of the particles is 40 nm. A similar value could be obtained from XRD measurements and the width of microwave absorption line around zero applied field. Superconducting properties of the powders were investigated with magnetization measurements.

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Section: Discussionmentioning

confidence: 72%

Preparation of one to three unit cell thick powders and investigation of their magnetic and microwave properties

Blinov

Fleisher

Huhtinen

et al. 1997

Supercond. Sci. Technol.

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“…The films thickness t was measured by the x-ray difractometer DRON-4. 9 The effective surface resistance of films R eff was measured by the parallel plate resonator technique. 10 The pinning critical current density j c was measured by the method of residual magnetization.…”

Section: Resultsmentioning

confidence: 99%

Application of a one-port dielectric resonator for measurement of the intermodulation in high temperature superconducting films

Vopilkin

Панин

Парафин

et al. 2001

Review of Scientific Instruments

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A technique for characterization of intermodulation performance of unpatterned high TC superconducting (HTS) films, based on the application of the resonator with a single coupling probe is proposed. It allows us to sufficiently increase the sensitivity in comparison with the conventional method based on the resonator with two coupling probes. The measurements of the power at mixed frequency as a function of input power are performed for epitaxial HTS films of various surface resistance and thickness. From the experimental data an intermodulation coefficient α is determined, which provides the film intermodulation properties independently on the measuring system.

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Disentangling superconductor and dielectric microwave losses in submicrometer Nb / SiO 2
Garcia,
Bailey,
Kirby
et al. 2024
Phys. Rev. Applied
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0
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Structure and transport properties of ultrathin YBa2Cu3O7−x films

Cited by 3 publications

References 14 publications

Preparation of one to three unit cell thick powders and investigation of their magnetic and microwave properties

Preparation of one to three unit cell thick powders and investigation of their magnetic and microwave properties

Application of a one-port dielectric resonator for measurement of the intermodulation in high temperature superconducting films

Disentangling superconductor and dielectric microwave losses in submicrometer Nb / SiO 2
Garcia,
Bailey,
Kirby
et al. 2024
Phys. Rev. Applied
0
0
0
0
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Structure and transport properties of ultrathin YBa2Cu3O7−x films

Cited by 3 publications

References 14 publications

Preparation of one to three unit cell thick powders and investigation of their magnetic and microwave properties

Preparation of one to three unit cell thick powders and investigation of their magnetic and microwave properties

Application of a one-port dielectric resonator for measurement of the intermodulation in high temperature superconducting films

Disentangling superconductor and dielectric microwave losses in submicrometer Nb / SiO 2Garcia, Bailey, Kirby et al. 2024Phys. Rev. Applied0000View full textAdd to dashboardCite

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Disentangling superconductor and dielectric microwave losses in submicrometer Nb / SiO 2
Garcia,
Bailey,
Kirby
et al. 2024
Phys. Rev. Applied
0
0
0
0
View full text Add to dashboard Cite