skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Giant increase in critical current density of K xFe 2-ySe₂ single crystals

Abstract

The critical current density Jabc of K xFe 2-ySe₂ single crystals can be enhanced by more than one order of magnitude, up to ~2.1×10⁴ A/cm² by the post annealing and quenching technique. A scaling analysis reveals the universal behavior of the normalized pinning force as a function of the reduced field for all temperatures, indicating the presence of a single vortex pinning mechanism. The main pinning sources are three-dimensional (3D) point-like normal cores. The dominant vortex interaction with pinning centers is via spatial variations in critical temperature T c (“δT c pinning”).

Authors:
;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1098501
Resource Type:
Publisher's Accepted Manuscript
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Volume: 84 Journal Issue: 21; Journal ID: ISSN 1098-0121
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English

Citation Formats

Lei, Hechang, and Petrovic, C. Giant increase in critical current density of KxFe2-ySe₂ single crystals. United States: N. p., 2011. Web. doi:10.1103/PhysRevB.84.212502.
Lei, Hechang, & Petrovic, C. Giant increase in critical current density of KxFe2-ySe₂ single crystals. United States. doi:10.1103/PhysRevB.84.212502.
Lei, Hechang, and Petrovic, C. Wed . "Giant increase in critical current density of KxFe2-ySe₂ single crystals". United States. doi:10.1103/PhysRevB.84.212502.
@article{osti_1098501,
title = {Giant increase in critical current density of KxFe2-ySe₂ single crystals},
author = {Lei, Hechang and Petrovic, C.},
abstractNote = {The critical current density Jabc of KxFe2-ySe₂ single crystals can be enhanced by more than one order of magnitude, up to ~2.1×10⁴ A/cm² by the post annealing and quenching technique. A scaling analysis reveals the universal behavior of the normalized pinning force as a function of the reduced field for all temperatures, indicating the presence of a single vortex pinning mechanism. The main pinning sources are three-dimensional (3D) point-like normal cores. The dominant vortex interaction with pinning centers is via spatial variations in critical temperature Tc (“δTc pinning”).},
doi = {10.1103/PhysRevB.84.212502},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 21,
volume = 84,
place = {United States},
year = {2011},
month = {12}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevB.84.212502

Citation Metrics:
Cited by: 25 works
Citation information provided by
Web of Science

Save / Share: