Tuning of superconducting phase transition and magnetic properties of ferroelectric-superconducting PbZr0.48Ti0.52O3/YBa2Cu3O7-δ heterostructure

•PZT/YBCO/LAO heterostructures with ultra-low thickness of the PZT (4 nm, 6 nm, 8 nm and 10 nm).•Well defined Meissner effect in ZFC and paramagnetic Meissner effect in the FC.•Tuning in the superconducting phase transition temperature of YBCO after the capping of PZT.•Robust ferromagnetic phase at...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2021-06, Vol.527, p.167753, Article 167753
Main Authors: Ravikant, Rakshit, Rajib K., Singh, Manju, Choudhary, Ram Janay, Ojha, V.N., Kumar, Ashok
Format: Article
Language:English
Subjects:
Capping
Diamagnetism
Ferroelectric materials
Ferroelectricity
Ferroelectrics
Ferromagnetics
Heterostructures
High temperature superconductors
Magnetic moments
Magnetic properties
Magnetism
Nanoelectronics
Phase transitions
Superconductivity
Thickness
Transition temperature
Tuning
YBCO superconductors
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Summary:•PZT/YBCO/LAO heterostructures with ultra-low thickness of the PZT (4 nm, 6 nm, 8 nm and 10 nm).•Well defined Meissner effect in ZFC and paramagnetic Meissner effect in the FC.•Tuning in the superconducting phase transition temperature of YBCO after the capping of PZT.•Robust ferromagnetic phase at the interface of PZT/YBCO. Tuning of superconducting phase transition temperature (Ts) and interfacial magnetism is of great technological importance for micro and nanoelectronics. To achieve the cherished goal, an ultra-thin layer (4 nm, 6 nm, 8 nm 10 nm) of ferroelectrics PbZr0.48Ti0.52O3 (PZT) on high-temperature superconductor YBa2Cu3O7-δ (YBCO) has deposited to tailor the magnetic and superconducting properties. The existence of Meissner effect confirmed the superconducting nature of YBCO in the heterostructures. However, its Ts significantly shifted to the lower temperature side with an increase in PZT capping layers' thickness. Nearly 10 K reduction in Ts was observed with an increase in the capping layer from 4 to 10 nm. A significant amount of magnetic moment was found in the heterostructures, which increases almost three times compared to the YBCO/LAO magnetic moment above Ts. We believe novel weak magnetic phases above the Ts may be due to the re-arrangement of oxygen anion near the ferroelectric-superconducting interface.
ISSN:0304-8853
1873-4766
DOI:10.1016/j.jmmm.2021.167753