Characterization and transport properties of YBa2Cu3Oy/YxPr1-xBa 2Cu3Oy, superlattices under magnetic fields using an off-axis rf magnetron sputtering technique

H. C. Yang; L. M. Wang; H. E. Horng

doi:10.1016/s0921-4534(97)01466-4

Characterization and transport properties of YBa₂Cu₃O_y/Y_xPr_1-xBa ₂Cu₃O_y, superlattices under magnetic fields using an off-axis rf magnetron sputtering technique

H. C. Yang^*, L. M. Wang, H. E. Horng

^*Corresponding author for this work

Undergraduate Program of Electro-Optical Engineering

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

We report here on the growth and transport properties of YBa₂Cu₃O_y/Y_xPr_1-x,Ba ₂Cu₃O_y, superlattices. The YBa₂Cu₃O_y/Y_xPr_1-xBa ₂Cu₃O_y [(YBCO/PBCO) for x = 0 and (YBCO/YPBCO) for x = 0.5] superlattices were grown in situ in an off-axis radio-frequency magnetron sputtering system. The superlattice structure of the samples was characterized by powder X-ray diffraction. Appearance of satellite diffraction peaks near the main (001) peaks confirms the superlattice structure. Resistivity measurements carried out under magnetic fields reveal thermal activated behaviour. Hall coefficients, R_H, in mixed state show sign reversal and a diminishing of RH is observed when the thickness of the YPBCO layer is increased or the thickness of the YBCO layer is decreased. Angular dependence of the critical current density, J_c, in YBCO/PBCO superlattices shows a decoupled behaviour in the flux line dynamics as the coupling strength of the YBCO layer weakens.

Original language	English
Pages (from-to)	325-334
Number of pages	10
Journal	Physica C: Superconductivity and its applications
Volume	281
Issue number	4
DOIs	https://doi.org/10.1016/s0921-4534(97)01466-4
Publication status	Published - 1997 Aug 10

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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title = "Characterization and transport properties of YBa2Cu3Oy/YxPr1-xBa 2Cu3Oy, superlattices under magnetic fields using an off-axis rf magnetron sputtering technique",

abstract = "We report here on the growth and transport properties of YBa2Cu3Oy/YxPr1-x,Ba 2Cu3Oy, superlattices. The YBa2Cu3Oy/YxPr1-xBa 2Cu3Oy [(YBCO/PBCO) for x = 0 and (YBCO/YPBCO) for x = 0.5] superlattices were grown in situ in an off-axis radio-frequency magnetron sputtering system. The superlattice structure of the samples was characterized by powder X-ray diffraction. Appearance of satellite diffraction peaks near the main (001) peaks confirms the superlattice structure. Resistivity measurements carried out under magnetic fields reveal thermal activated behaviour. Hall coefficients, RH, in mixed state show sign reversal and a diminishing of RH is observed when the thickness of the YPBCO layer is increased or the thickness of the YBCO layer is decreased. Angular dependence of the critical current density, Jc, in YBCO/PBCO superlattices shows a decoupled behaviour in the flux line dynamics as the coupling strength of the YBCO layer weakens.",

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AU - Wang, L. M.

AU - Horng, H. E.

PY - 1997/8/10

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N2 - We report here on the growth and transport properties of YBa2Cu3Oy/YxPr1-x,Ba 2Cu3Oy, superlattices. The YBa2Cu3Oy/YxPr1-xBa 2Cu3Oy [(YBCO/PBCO) for x = 0 and (YBCO/YPBCO) for x = 0.5] superlattices were grown in situ in an off-axis radio-frequency magnetron sputtering system. The superlattice structure of the samples was characterized by powder X-ray diffraction. Appearance of satellite diffraction peaks near the main (001) peaks confirms the superlattice structure. Resistivity measurements carried out under magnetic fields reveal thermal activated behaviour. Hall coefficients, RH, in mixed state show sign reversal and a diminishing of RH is observed when the thickness of the YPBCO layer is increased or the thickness of the YBCO layer is decreased. Angular dependence of the critical current density, Jc, in YBCO/PBCO superlattices shows a decoupled behaviour in the flux line dynamics as the coupling strength of the YBCO layer weakens.

AB - We report here on the growth and transport properties of YBa2Cu3Oy/YxPr1-x,Ba 2Cu3Oy, superlattices. The YBa2Cu3Oy/YxPr1-xBa 2Cu3Oy [(YBCO/PBCO) for x = 0 and (YBCO/YPBCO) for x = 0.5] superlattices were grown in situ in an off-axis radio-frequency magnetron sputtering system. The superlattice structure of the samples was characterized by powder X-ray diffraction. Appearance of satellite diffraction peaks near the main (001) peaks confirms the superlattice structure. Resistivity measurements carried out under magnetic fields reveal thermal activated behaviour. Hall coefficients, RH, in mixed state show sign reversal and a diminishing of RH is observed when the thickness of the YPBCO layer is increased or the thickness of the YBCO layer is decreased. Angular dependence of the critical current density, Jc, in YBCO/PBCO superlattices shows a decoupled behaviour in the flux line dynamics as the coupling strength of the YBCO layer weakens.

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Characterization and transport properties of YBa₂Cu₃O_y/Y_xPr_1-xBa ₂Cu₃O_y, superlattices under magnetic fields using an off-axis rf magnetron sputtering technique

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