Hybrid Superconducting-Ferromagnetic [Bi2Sr2(Ca,Y)2Cu3O10]0.99(La2/3Ba1/3MnO3)0.01 Composite Thick Films

Mejía‐Salazar, J. R.; Perea, José Darío; Castillo, Roberto; Diosa, J.E.; Baca, E.

doi:10.3390/ma12060861

Cited by 3 publications

(3 citation statements)

References 27 publications

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“…The applications of these compounds are not identified yet, as we have seen for hybrid superconducting-ferromagnetic thin films [86][87][88]. The study of superconducting and ferromagnetic states is important to understand the interacting mechanism of Cooper pairs and ferromagnetism [86][87][88], also hybrid superconducting-ferromagnetic systems are useful for the applications like; split-ring resonators, superconducting-spintronic devices, topological quantum computing, and magnetic-field-sensors as discussed in the reference [88]. There are many challenges to developing devices for the application purpose from the four-layer-type compounds.…”

Section: Eu-substitution Effect On La2-xeuxo2bi3ag06sn04s6mentioning

confidence: 99%

Superconductivity in La2O2M4S6 -Type Bi-based Compounds: A Review on Element Substitution Effects

Jha

Mizuguchi

2020

Condensed Matter

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Since 2012, layered compounds containing Bi-Ch (Ch: S and Se) layers have been extensively studied in the field of superconductivity. The most-studied system is BiS2-based superconductors with two-layer-type conducting layers. Recently, superconductivity was observed in La2O2M2S6 (M = metals), which contains four-layer-type conducting layers. The four-layer-type Bi-based superconductors are new systems in the family of Bi-based superconductors; we can expect further development of Bi-based layered superconductors. In this review article, we summarize the progress of synthesis, structural analysis, investigations on superconducting properties, and material design of the four-layer-type Bi-based superconductors. In-plane chemical pressure is the factor essential for the emergence of bulk superconductivity in the system. The highest Tc of 4.1 K was observed in Rare Earth elements (RE) substituted La2-xRExO2Bi3Ag0.6Sn0.4S6.

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Section: Eu-substitution Effect On La2-xeuxo2bi3ag06sn04s6mentioning

confidence: 99%

Superconductivity in La2O2M4S6 -Type Bi-based Compounds: A Review on Element Substitution Effects

Jha

Mizuguchi

2020

Condensed Matter

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“…Equipped with the knowledge about the physicochemical features that seem to be responsible for the T c (Figure 5), the researchers working in the area of superconducting materials could prioritize materials with desired critical temperatures. This is especially important for the development of hybrid ferromagnetic/superconductor materials for spintronic applications [24,25]. Equipped with the knowledge about the physicochemical features that seem to be responsible for the Tc (Figure 5), the researchers working in the area of superconducting materials could prioritize materials with desired critical temperatures.…”

Section: Interpretation Of Optimized Model and Potential Real-world Amentioning

confidence: 99%

Section: Interpretation Of Optimized Model and Potential Real-world Amentioning

confidence: 99%

Predictive Modeling of Critical Temperatures in Superconducting Materials

Sizochenko

Hofmann

2020

Molecules

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In this study, we have investigated quantitative relationships between critical temperatures of superconductive inorganic materials and the basic physicochemical attributes of these materials (also called quantitative structure-property relationships). We demonstrated that one of the most recent studies (titled "A data-driven statistical model for predicting the critical temperature of a superconductor” and published in Computational Materials Science by K. Hamidieh in 2018) reports on models that were based on the dataset that contains 27% of duplicate entries. We aimed to deliver stable models for a properly cleaned dataset using the same modeling techniques (multiple linear regression, MLR, and gradient boosting decision trees, XGBoost). The predictive ability of our best XGBoost model (R2 = 0.924, RMSE = 9.336 using 10-fold cross-validation) is comparable to the XGBoost model by the author of the initial dataset (R2 = 0.920 and RMSE = 9.5 K in ten-fold cross-validation). At the same time, our best model is based on less sophisticated parameters, which allows one to make more accurate interpretations while maintaining a generalizable model. In particular, we found that the highest relative influence is attributed to variables that represent the thermal conductivity of materials. In addition to MLR and XGBoost, we explored the potential of other machine learning techniques (NN, neural networks and RF, random forests).

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Effects of Partial Manganese Substitution by Cobalt on the Physical Properties of Pr0.7Sr0.3Mn(1−x)CoxO3 (0 ≤ x ≤ 0.15) Manganites

et al. 2023

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We have investigated the structural, magnetic, and electrical transport properties of Pr0.7 Sr0.3 Mn(1−x)Cox O3 nanopowders (x = 0, 0.05, 0.10 and 0.15). The Pechini Sol-gel method was used to synthesize these nanopowders. X-ray diffraction at room temperature shows that all the nano powders have an orthorhombic structure of Pnma space group crystallography. The average crystallite size of samples x = 0, 0.05, 0.10, and 0.15 are 33.78 nm, 29 nm, 33.61 nm, and 24.27 nm, respectively. Semi-quantitative chemical analysis by energy dispersive spectroscopy (EDS) confirms the expected stoichiometry of the sample. Magnetic measurements indicate that all samples show a ferromagnetic (FM) to paramagnetic (PM) transition with increasing temperature. The Curie temperature TC gradually decreases (300 K, 270 K, 250 K, and 235 K for x = 0, 0.05, 0.10, and 0.15, respectively) with increasing Co concentrations. The M-H curves for all compounds reveal the PM behavior at 300 K, while the FM behavior characterizes the magnetic hysteresis at low temperature (5 K). The electrical resistivity measurements show that all compounds exhibit metallic behavior at low temperature (T < Tρ) well fitted by the relation ρ = ρ0 + ρ2T2 + ρ4.5T4.5 and semiconductor behavior above Tρ (T > Tρ), for which the electronic transport can be explained by the variable range hopping model and the adiabatic small polaron hopping model. All samples have significant magnetoresistance (MR) values, even at room temperature. This presented research provides an innovative and practical approach to develop materials in several technological areas, such as ultra-high density magnetic recording and magneto resistive sensors.

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Hybrid Superconducting-Ferromagnetic [Bi2Sr2(Ca,Y)2Cu3O10]0.99(La2/3Ba1/3MnO3)0.01 Composite Thick Films

Cited by 3 publications

References 27 publications

Superconductivity in La2O2M4S6 -Type Bi-based Compounds: A Review on Element Substitution Effects

Superconductivity in La2O2M4S6 -Type Bi-based Compounds: A Review on Element Substitution Effects

Predictive Modeling of Critical Temperatures in Superconducting Materials

Effects of Partial Manganese Substitution by Cobalt on the Physical Properties of Pr0.7Sr0.3Mn(1−x)CoxO3 (0 ≤ x ≤ 0.15) Manganites

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