Variation in the superconducting properties of Bi1.75Pb0.25Sr2Ca2Cu3O10+δ in proximity with Pr0.5Ca0.5MnO3

Gayathri, V.; Amaladass, E. P.; Vinod, K.; Sathyanarayana, A. T.; Kumary, T. Geetha; Mani, Awadhesh

doi:10.1016/j.cryogenics.2022.103542

Cited by 3 publications

(2 citation statements)

References 30 publications

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“…The presence of the strain-induced uncompensated spins in the ultra-thin PCMO layer as revealed from the M-H curve of the 15 nm thin film of PCMO grown on STO substrate shown in the inset (ii) of Fig. 5, can contribute to the FM of the heterostructure 32 . Additionally, at temperatures below 150 K, the PCMO enters into the AFM state.…”

Section: Magnetization Studiesmentioning

confidence: 98%

Interfacial interaction driven enhancement in the colossal magnetoresistance property of ultra-thin heterostructure of Pr0.6Sr0.4MnO3 in proximity with Pr0.5Ca0.5MnO3

Gayathri

Amaladass

Sathyanarayana

et al. 2023

Sci Rep

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The ultra-thin heterostructure of Pr0.6Sr0.4MnO3(15 nm)/Pr0.5Ca0.5MnO3(15 nm)/SrTiO3 fabricated using pulsed laser deposition technique exhibits the phase-segregated nature wherein the ferromagnetism of Pr0.6Sr0.4MnO3, and the antiferromagnetic state of Pr0.5Ca0.5MnO3 coexist in proximity. The observation of two exciting phenomena in the grown ultra-thin heterostructure, namely, the kinetic arrest and training effect, confirms its phase-segregated nature. The melting of the antiferromagnetic state in Pr0.5Ca0.5MnO3 into a ferromagnetic state due to the interfacial interaction arising from the magnetic proximity of the ferromagnetic clusters of Pr0.6Sr0.4MnO3 have been observed. A metal–insulator transition (TMIT) found at 215 K, close to its Curie temperature (TCurie) observed at 230 K, reveals a strong correlation between the electrical transport and the magnetization of the ultra-thin heterostructure. The electrical conduction in the high-temperature regime is explained in terms of the adiabatic small polaron hopping model. While the resistance in the metallic regime for temperatures above 100 K is contributed by the inelastic scattering due to the two-magnons, in the metallic regime below 100 K, the one-magnon inelastic scattering contribution is prevalent. An enhanced colossal magnetoresistance property near room temperature is obtained in the ultra-thin heterostructure arising from the proximity-driven interfacial interaction, making it a suitable candidate for technological applications near room temperature.

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Section: Magnetization Studiesmentioning

confidence: 98%

Interfacial interaction driven enhancement in the colossal magnetoresistance property of ultra-thin heterostructure of Pr0.6Sr0.4MnO3 in proximity with Pr0.5Ca0.5MnO3

Gayathri

Amaladass

Sathyanarayana

et al. 2023

Sci Rep

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“…The close interplay among charge, orbital and spin degrees of freedom give rise to rich phase diagrams including different types of charge, orbital and spin ordered phases [3,4]. In this way, by varying the chemical composition of the sample, materials with either giant magnetoresistance or metal-insulating transitions can be obtained [3][4][5][6]. Later on, the discovery of layered LnBaMn2O6-δ perovskites with Ln-Ba order along the c axis added a new ingredient to their complex set of interactions [7,8].…”

Section: Introductionmentioning

confidence: 99%

Magnetic order and magnetic properties of the oxygen deficient SmBaMn2O5 layered perovskite

Blasco

Rodríguez-Velamazán

Subı́as

et al. 2022

Materials Research Bulletin

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Microstructure and substrate dependent enhanced critical current density in Pb-substituted Bi-based high temperature superconducting thin films

Gayathri¹,

Sathyanarayana²,

Vinod³

et al. 2022

Phys. Scr.

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A comparative study was carried out using magnetization measurements to understand the diamagnetic response of the superconducting thin films of Bi1.75Pb0.25Sr2Ca2Cu3O10±δ grown on two different substrates. The film grown on SrTiO3 substrate was found to exhibit enhanced superconducting properties than the film grown on LaAlO3 substrate. The strengthening of the intergrain coupling by the growth of the larger grains with better grain connectivity and enhanced pinning mechanism yielded a critical current density as high as ~ 4.8×105 Acm-2 in the film grown on SrTiO3 substrate. An enhancement in the value of the critical current density with the decrease in the dimensionality of the sample on account of a change in the microstructure was observed. As revealed from the AC susceptibility measurements, the metallic nature of the weak links conveys that the weak links are essentially the coexisting secondary phases in these films. Furthermore, the paramagnetic Meissner effect was observed in these films, which can be explained within the realm of the flux compression models.

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Variation in the superconducting properties of Bi1.75Pb0.25Sr2Ca2Cu3O10+δ in proximity with Pr0.5Ca0.5MnO3

Cited by 3 publications

References 30 publications

Interfacial interaction driven enhancement in the colossal magnetoresistance property of ultra-thin heterostructure of Pr0.6Sr0.4MnO3 in proximity with Pr0.5Ca0.5MnO3

Interfacial interaction driven enhancement in the colossal magnetoresistance property of ultra-thin heterostructure of Pr0.6Sr0.4MnO3 in proximity with Pr0.5Ca0.5MnO3

Magnetic order and magnetic properties of the oxygen deficient SmBaMn2O5 layered perovskite

Microstructure and substrate dependent enhanced critical current density in Pb-substituted Bi-based high temperature superconducting thin films

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