Pinning force scaling analysis of Fe-based high-Tc superconductors

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Abstract

Pinning force data, (Formula presented.), of a variety of Fe-based high-(Formula presented.) superconductors (11-, 111-, 122- and 1111-type) were analyzed by means of a scaling approach based on own experimental data and an extensive collection of literature data. The literature data were mostly replotted, but also converted from critical current measurements together with data for the irreversibility line when available from the same authors. Using the scaling approaches of Dew-Hughes [J. Appl. Phys. 44, 1360 (1973)] and Kramer [Philos. Mag. 30, 293 (1974)], we determined the scaling behavior and the best fits to the theory. The data of most experiments analyzed show a good scaling behavior at high temperatures when plotting the normalized pinning force (Formula presented.) versus the irreversibility field, (Formula presented.). The resulting peak positions, (Formula presented.), were found at (Formula presented.) for the 11-type materials, at (Formula presented.) for the 111-type materials, between 0.32 and 0.5 for the 1111-type materials and between 0.25 and 0.71 for the 122-type materials. Compared to the typical results of Bi2Sr2CaCu2O(Formula presented.) (Formula presented.) and YBa2Cu3O(Formula presented.) (Formula presented.), most of the 122 and 1111 samples investigated show peak values higher than 0.4, which is similar to the data obtained on the light-rare earth 123-type HTSC like NdBa2Cu3Oy. This high peak position ensures a good performance of the materials in high applied magnetic fields and is, therefore, a very promising result concerning the possible applications of the Fe-based high-(Formula presented.) superconductors.

Original languageEnglish
JournalInternational Journal of Modern Physics B
DOIs
Publication statusAccepted/In press - 2016

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scaling
dew
plotting
high temperature superconductors
critical current
rare earth elements

Keywords

  • Fe-based superconductors
  • flux pinning
  • pinning forces
  • pnictides
  • scaling
  • selenides

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Condensed Matter Physics

Cite this

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title = "Pinning force scaling analysis of Fe-based high-Tc superconductors",
abstract = "Pinning force data, (Formula presented.), of a variety of Fe-based high-(Formula presented.) superconductors (11-, 111-, 122- and 1111-type) were analyzed by means of a scaling approach based on own experimental data and an extensive collection of literature data. The literature data were mostly replotted, but also converted from critical current measurements together with data for the irreversibility line when available from the same authors. Using the scaling approaches of Dew-Hughes [J. Appl. Phys. 44, 1360 (1973)] and Kramer [Philos. Mag. 30, 293 (1974)], we determined the scaling behavior and the best fits to the theory. The data of most experiments analyzed show a good scaling behavior at high temperatures when plotting the normalized pinning force (Formula presented.) versus the irreversibility field, (Formula presented.). The resulting peak positions, (Formula presented.), were found at (Formula presented.) for the 11-type materials, at (Formula presented.) for the 111-type materials, between 0.32 and 0.5 for the 1111-type materials and between 0.25 and 0.71 for the 122-type materials. Compared to the typical results of Bi2Sr2CaCu2O(Formula presented.) (Formula presented.) and YBa2Cu3O(Formula presented.) (Formula presented.), most of the 122 and 1111 samples investigated show peak values higher than 0.4, which is similar to the data obtained on the light-rare earth 123-type HTSC like NdBa2Cu3Oy. This high peak position ensures a good performance of the materials in high applied magnetic fields and is, therefore, a very promising result concerning the possible applications of the Fe-based high-(Formula presented.) superconductors.",
keywords = "Fe-based superconductors, flux pinning, pinning forces, pnictides, scaling, selenides",
author = "Koblischka, {Michael Rudolf} and Muralidhar Miryala",
year = "2016",
doi = "10.1142/S0217979216300176",
language = "English",
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T1 - Pinning force scaling analysis of Fe-based high-Tc superconductors

AU - Koblischka, Michael Rudolf

AU - Miryala, Muralidhar

PY - 2016

Y1 - 2016

N2 - Pinning force data, (Formula presented.), of a variety of Fe-based high-(Formula presented.) superconductors (11-, 111-, 122- and 1111-type) were analyzed by means of a scaling approach based on own experimental data and an extensive collection of literature data. The literature data were mostly replotted, but also converted from critical current measurements together with data for the irreversibility line when available from the same authors. Using the scaling approaches of Dew-Hughes [J. Appl. Phys. 44, 1360 (1973)] and Kramer [Philos. Mag. 30, 293 (1974)], we determined the scaling behavior and the best fits to the theory. The data of most experiments analyzed show a good scaling behavior at high temperatures when plotting the normalized pinning force (Formula presented.) versus the irreversibility field, (Formula presented.). The resulting peak positions, (Formula presented.), were found at (Formula presented.) for the 11-type materials, at (Formula presented.) for the 111-type materials, between 0.32 and 0.5 for the 1111-type materials and between 0.25 and 0.71 for the 122-type materials. Compared to the typical results of Bi2Sr2CaCu2O(Formula presented.) (Formula presented.) and YBa2Cu3O(Formula presented.) (Formula presented.), most of the 122 and 1111 samples investigated show peak values higher than 0.4, which is similar to the data obtained on the light-rare earth 123-type HTSC like NdBa2Cu3Oy. This high peak position ensures a good performance of the materials in high applied magnetic fields and is, therefore, a very promising result concerning the possible applications of the Fe-based high-(Formula presented.) superconductors.

AB - Pinning force data, (Formula presented.), of a variety of Fe-based high-(Formula presented.) superconductors (11-, 111-, 122- and 1111-type) were analyzed by means of a scaling approach based on own experimental data and an extensive collection of literature data. The literature data were mostly replotted, but also converted from critical current measurements together with data for the irreversibility line when available from the same authors. Using the scaling approaches of Dew-Hughes [J. Appl. Phys. 44, 1360 (1973)] and Kramer [Philos. Mag. 30, 293 (1974)], we determined the scaling behavior and the best fits to the theory. The data of most experiments analyzed show a good scaling behavior at high temperatures when plotting the normalized pinning force (Formula presented.) versus the irreversibility field, (Formula presented.). The resulting peak positions, (Formula presented.), were found at (Formula presented.) for the 11-type materials, at (Formula presented.) for the 111-type materials, between 0.32 and 0.5 for the 1111-type materials and between 0.25 and 0.71 for the 122-type materials. Compared to the typical results of Bi2Sr2CaCu2O(Formula presented.) (Formula presented.) and YBa2Cu3O(Formula presented.) (Formula presented.), most of the 122 and 1111 samples investigated show peak values higher than 0.4, which is similar to the data obtained on the light-rare earth 123-type HTSC like NdBa2Cu3Oy. This high peak position ensures a good performance of the materials in high applied magnetic fields and is, therefore, a very promising result concerning the possible applications of the Fe-based high-(Formula presented.) superconductors.

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