Magneto-optical characterizations of FeTe₀̣₅Se₀̣₅ thin films with critical current density over 1 MA/cm²
Abstract
We performed magneto-optical (MO) measurements on FeTe₀̣₅Se₀̣₅ thin films grown on LaAlO₃ (LAO) and Yttria-stabilized zirconia (YSZ) single-crystalline substrates. These thin films show superconducting transition temperature Tc ~19 K, 4 K higher than the bulk sample. Typical roof-top patterns can be observed in the MO images of thin films grown on LAO and YSZ, from which a large and homogeneous critical current density Jc ~ 3 - 4 x 10⁶ A/cm² at 5 K was obtained. In this study, magnetic flux penetration measurement reveals that the current is almost isotropically distributed in the two thin films. Compared with bulk crystals, FeTe₀̣₅Se₀̣₅ thin film demonstrates not only higher Tc, but also much larger Jc, which is attractive for applications.
- Authors:
-
- The Univ. of Tokyo, Tokyo (Japan)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Publication Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1201349
- Report Number(s):
- BNL-107981-2015-JA
Journal ID: ISSN 0953-2048; R&D Project: MA012MABA; KC0202050
- Grant/Contract Number:
- SC00112704
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Superconductor Science and Technology
- Additional Journal Information:
- Journal Volume: 28; Journal Issue: 1; Journal ID: ISSN 0953-2048
- Publisher:
- IOP Publishing
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; superconductivity; condensed matter; electrical; magnetic and optical; iron-based superconductors; thin film; magneto-optical imaging
Citation Formats
Sun, Yue, Li, Qiang, Tsuchiya, Yuji, Pyon, Sunseng, Tamegai, Tsuyoshi, Zhang, Cheng, and Ozaki, Toshinori. Magneto-optical characterizations of FeTe₀̣₅Se₀̣₅ thin films with critical current density over 1 MA/cm². United States: N. p., 2014.
Web. doi:10.1088/0953-2048/28/1/015010.
Sun, Yue, Li, Qiang, Tsuchiya, Yuji, Pyon, Sunseng, Tamegai, Tsuyoshi, Zhang, Cheng, & Ozaki, Toshinori. Magneto-optical characterizations of FeTe₀̣₅Se₀̣₅ thin films with critical current density over 1 MA/cm². United States. https://doi.org/10.1088/0953-2048/28/1/015010
Sun, Yue, Li, Qiang, Tsuchiya, Yuji, Pyon, Sunseng, Tamegai, Tsuyoshi, Zhang, Cheng, and Ozaki, Toshinori. Wed .
"Magneto-optical characterizations of FeTe₀̣₅Se₀̣₅ thin films with critical current density over 1 MA/cm²". United States. https://doi.org/10.1088/0953-2048/28/1/015010. https://www.osti.gov/servlets/purl/1201349.
@article{osti_1201349,
title = {Magneto-optical characterizations of FeTe₀̣₅Se₀̣₅ thin films with critical current density over 1 MA/cm²},
author = {Sun, Yue and Li, Qiang and Tsuchiya, Yuji and Pyon, Sunseng and Tamegai, Tsuyoshi and Zhang, Cheng and Ozaki, Toshinori},
abstractNote = {We performed magneto-optical (MO) measurements on FeTe₀̣₅Se₀̣₅ thin films grown on LaAlO₃ (LAO) and Yttria-stabilized zirconia (YSZ) single-crystalline substrates. These thin films show superconducting transition temperature Tc ~19 K, 4 K higher than the bulk sample. Typical roof-top patterns can be observed in the MO images of thin films grown on LAO and YSZ, from which a large and homogeneous critical current density Jc ~ 3 - 4 x 10⁶ A/cm² at 5 K was obtained. In this study, magnetic flux penetration measurement reveals that the current is almost isotropically distributed in the two thin films. Compared with bulk crystals, FeTe₀̣₅Se₀̣₅ thin film demonstrates not only higher Tc, but also much larger Jc, which is attractive for applications.},
doi = {10.1088/0953-2048/28/1/015010},
journal = {Superconductor Science and Technology},
number = 1,
volume = 28,
place = {United States},
year = {Wed Dec 03 00:00:00 EST 2014},
month = {Wed Dec 03 00:00:00 EST 2014}
}
Web of Science
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Works referencing / citing this record:
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