Epitaxial growth of single crystal films of Ba1−xKxBiO3+y superconductors

Shiryaev, S. V.; Barilo, S. N.; Orlova, N. S.; Zhigunov, D. I.; Shestac, A.; Koyava, V. T.; Gatalskaya, V. I.; Pushkarev, A. V.; Pan, V.M.; Solovjov, V.F.

doi:10.1016/s0022-0248(96)00767-1

Cited by 10 publications

(2 citation statements)

References 13 publications

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“…The details of the method of obtaining the substrates and of electrodeposition of the single crystalline films are given in [4]. The chemical compositions of the films and the substrates were determined by using a calibration curve for the pseudocubic lattice versus potassium concentration [3].…”

Section: Methodsmentioning

confidence: 99%

Investigations on the Magnetic Properties of Thick Films of BKBO

Barilo

Gatalskaya

Shiryaev

et al. 2000

phys. stat. sol. (a)

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Single crystalline thick films of the superconductor Ba 1Àx K x BiO y with wide range of composition x were studied. We first prepared the superconducting films with potassium content x = 0.55 to 0.67. The systematic exploration of the thick films with T c % 30± ±31 K and J c (5 K) % 5 Â 10 5 Acm ± ±2 (x = 0.36 and 0.38) reveals that for 4.2 to 20 K the field dependences J c (B) are well described by the collective pinning theory. The investigation of the pinning force density F p (B) shows an unusual scaling behaviour for thick film with x = 0.38.

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Section: Methodsmentioning

confidence: 99%

Investigations on the Magnetic Properties of Thick Films of BKBO

Barilo

Gatalskaya

Shiryaev

et al. 2000

phys. stat. sol. (a)

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“…The here studied sample is a Ba 0.63 K 0.37 BiO 3 single crystalline thick film grown on BaBiO 3 single crystal as a seed. The details of the film preparation are described elsewhere [5]. The good quality of the film was confirmed by x-ray diffraction measurements (rocking curve FWHM ≤ 0.4 o ).…”

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confidence: 97%

Effect of the sample geometry on the second magnetization peak in single crystalline BaKBiO thick film

Galkin

Kopelevich

Esquinazi

et al. 2000

Solid State Communications

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Magnetization hysteresis loop M (H) measurements performed on a single crystalline Ba 0.63 K 0.37 BiO 3 superconducting thick film reveal pronounced sample geometry dependence of the "second magnetization peak" (SMP), i.e. a maximum in the width of M (H) occurring at the field H SMP (T ). In particular, it is found that the SMP vanishes decreasing the film dimension. We argue that the observed sample geometry dependence of the SMP cannot be accounted for by models which assume a vortex pinning enhancement as the origin of the SMP. Our results can be understood considering the thermomagnetic instability effect and/or non-uniform current distribution at H < H SMP in large enough samples.

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High-TC superconductor thin films

Zhao

2002

Handbook of Thin Films

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Epitaxial growth of single crystal films of Ba1−xKxBiO3+y superconductors

Cited by 10 publications

References 13 publications

Investigations on the Magnetic Properties of Thick Films of BKBO

Investigations on the Magnetic Properties of Thick Films of BKBO

Effect of the sample geometry on the second magnetization peak in single crystalline BaKBiO thick film

High-TC superconductor thin films

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