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Structural, Raman, Transport, and Magnetic Characterization Data for Sb-Substituted PrFeAs1−xSbxO0.7F0.3 Superconductors

Version 1.0

Singh, Shiv, 2026, "Structural, Raman, Transport, and Magnetic Characterization Data for Sb-Substituted PrFeAs1−xSbxO0.7F0.3 Superconductors", https://doi.org/10.18150/B8QYP8, RepOD, V1

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Description

This dataset contains experimental data for Sb-substituted PrFeAs1−xSbxO0.7F0.3 iron-based superconductors (0 < x ≤ 1.0) synthesized using a conventional solid-state reaction method. The dataset includes powder X-ray diffraction (XRD) patterns, Raman spectroscopy measurements, electrical resistivity data, magneto-resistivity measurements, Arrhenius analyses derived from magneto-resistivity data, magnetic susceptibility and magnetization measurements, and superconducting parameters extracted from transport and magnetic measurements.

The XRD data were collected to determine phase composition, lattice parameters, and structural evolution with Sb substitution. Raman spectroscopy measurements provide information on the evolution of lattice vibrational modes associated with Sb incorporation. Temperature-dependent electrical resistivity and magneto-resistivity measurements, performed under applied magnetic fields up to 9 T, were used to determine superconducting transition temperatures, upper critical fields (Hc2), irreversibility fields (Hirr), and thermally activated flux-flow activation energies. Magnetic measurements, including zero-field-cooled (ZFC) and field-cooled (FC) susceptibility and magnetic hysteresis measurements, were used to characterize the superconducting response and evaluate the critical current density and vortex-pinning properties.

The dataset provides structural, Raman spectroscopic, transport, and magnetic characterization of PrFeAs1−xSbxO0.7F0.3 compounds across a wide range of Sb concentrations. All data are provided in text-based formats suitable for independent analysis, and reuse in future studies of isovalent substitution effects and superconductivity in iron-based superconductors.


(2026-07-12)
Subject
Physics
Keyword

Iron based superconductors, Critical transition temperature, Upper critical field, Critical current density

Related Publication

Tuning superconductivity by isovalent antimony substitution in PrFeAs(O,F)

Priya Singh , Konrad Kwatek , Tatiana Zajarniuk, Taras Palasyuk , Cezariusz Jastrzębski , Michał Wierzbicki, Tomasz Cetner, Andrzej Szewczyk, Shiv J. Singh

Physica B 740 (2026) 419025 https://doi.org/10.1016/j.physb.2026.419025 doi: 10.1016/j.physb.2026.419025

CC BY - Creative Commons Attribution 4.0 CC BY - Creative Commons Attribution 4.0

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README_PhysicaB.txt
Plain Text - 11.6 KB - Aug 3, 2026 - 0 Downloads
MD5: f85751e54cbbb7efeefd4e4340dc0988
License: CC BY - Creative Commons Attribution 4.0
This file provides documentation for the dataset, including a description of the dataset contents, directory structure, file formats, variables, units, measurement methods, software requirements, and licensing information. It is intended to help users understand, interpret, and reuse the data independently of the associated publication.
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Figure1.zip
ZIP Archive - 388.1 KB - Aug 3, 2026 - 0 Downloads
MD5: b9817285fb64de2d3021b04d88f62084
License: CC BY - Creative Commons Attribution 4.0
Figure1.zip contains powder X-ray diffraction (XRD) data for PrFeAs1-xSbxO0.7F0.3 samples with nominal fluorine concentrations x = 0.0–1.0. The files include diffraction intensity as a function of 2θ, along with lattice parameters (c) and unit-cell volume (V) obtained from structural refinement. These data were used to investigate phase formation and the evolution of crystal structure with fluorine substitution.
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Figure2.zip
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MD5: ef58c35e7080cc0a294e0f594cf91cf6
License: CC BY - Creative Commons Attribution 4.0
Figure2.zip contains Raman peak position data (Raman shift, cm⁻¹) as a function of Sb content (X_Sb) in PrFeAs1-xSbxO0.7F0.3 samples. The files include the extracted Raman mode frequencies used to analyze the evolution of lattice vibrations and structural changes associated with Sb substitution.
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Figure3.zip
ZIP Archive - 258.0 KB - Aug 3, 2026 - 0 Downloads
MD5: 38fdca05a406fb4dc6f4df3821dff608
License: CC BY - Creative Commons Attribution 4.0
Figure3.zip contains temperature-dependent electrical resistivity data, ρ(T), for PrFeAs1-xSbxO0.7F0.3 bulk samples with different nominal Sb concentrations. The files include resistivity values measured as a function of temperature. These data were used to evaluate the effect of Sb substitution on the transport and superconducting properties of the samples.
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Figure4.zip
ZIP Archive - 23.5 KB - Aug 3, 2026 - 0 Downloads
MD5: 4c467070066d55c23c5db250e034388e
License: CC BY - Creative Commons Attribution 4.0
Figure4.zip contains magneto-resistivity data for PrFeAs1-xSbxO0.7F0.3 samples (x = 0.15 and 0.30) measured under applied magnetic fields from 0 to 9 T over a temperature range up to 60 K. The files include temperature-dependent resistivity data collected at different magnetic fields and the corresponding upper critical field (Hc2) and irreversibility field (Hirr) values determined from the resistivity measurements. These data were used to evaluate the magnetic-field response and superconducting properties of the samples.
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Figure5.zip
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MD5: 205eef18dc6f2003a875278380b0d66b
License: CC BY - Creative Commons Attribution 4.0
Figure5.zip contains Arrhenius analysis data derived from magneto-resistivity measurements of PrFeAs1-xSbxO0.7F0.3 samples (x = 0.15 and 0.3) under applied magnetic fields from 0 to 9 T. The files include normalized resistivity data as a function of inverse temperature (1/T) used to determine the thermally activated flux-flow activation energy. The dataset also contains field-dependent activation energy values extracted from the Arrhenius analysis, which were used to investigate vortex dynamics and flux-pinning behavior in the superconducting samples.
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Figure6.zip
ZIP Archive - 45.6 KB - Aug 3, 2026 - 0 Downloads
MD5: b84a558ee96449049f72c5c22a66bbf8
License: CC BY - Creative Commons Attribution 4.0
Figure6.zip contains temperature-dependent normalized magnetic moment data (M/M5K) measured under zero-field-cooled (ZFC) and field-cooled (FC) conditions in an applied field of 20 Oe, together with critical current density (Jc) data at 5 K as a function of applied magnetic field. These measurements were used to evaluate the superconducting transition and flux-pinning properties of PrFeAs1-xSbxO0.7F0.3 samples.
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Figure7.zip
ZIP Archive - 1.4 KB - Aug 3, 2026 - 0 Downloads
MD5: c30b3e656925f7ed9e154e5888a4ae3c
License: CC BY - Creative Commons Attribution 4.0
Figure7.zip include the data file of (a) superconducting transition temperature Tc onset obtained from the transport measurements; (b) the superconducting transition width ΔT; (c) residual resistivity ρ0 obtained from extrapolation of the normal-state resistivity to T =0 K and (d) residual resistivity ratio RRR =ρ300 K/ρ50 K and RRR =ρ300K/ρ0 as a function of Sb concentration (x) for our PrFeAs1-xSbxO0.7F0.3 samples with other reports.
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