Magneto-optical characterizations of FeTe₀̣₅Se₀̣₅ thin films with critical current density over 1 MA/cm²

Sun, Yue; Li, Qiang; Tsuchiya, Yuji; Pyon, Sunseng; Tamegai, Tsuyoshi; Zhang, Cheng; Ozaki, Toshinori

doi:10.1088/0953-2048/28/1/015010

Title: 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 T_c ~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 J_c ~ 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 T_c, but also much larger J_c, which is attractive for applications.

Authors:

Sun, Yue ^[1]; Li, Qiang ^[2]; Tsuchiya, Yuji ^[1]; Pyon, Sunseng ^[1]; Tamegai, Tsuyoshi ^[1]; Zhang, Cheng ^[2]; Ozaki, Toshinori ^[2]

The Univ. of Tokyo, Tokyo (Japan)
Brookhaven National Lab. (BNL), Upton, NY (United States)

Publication Date:: Wed Dec 03 00:00:00 EST 2014

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.

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                    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

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                    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.

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@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}

}

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Magneto-optical observations of crossing-lattice state in ${Bi}_{2} {Sr}_{2} {CaCu}_{2} O_{8 + y}$
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Works referencing / citing this record:

Large and significantly anisotropic critical current density induced by planar defects in ${CaKFe}_{4} {As}_{4}$ single crystals
journal, March 2019

Pyon, Sunseng; Takahashi, Ayumu; Veshchunov, Ivan
Physical Review B, Vol. 99, Issue 10
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Title: Magneto-optical characterizations of FeTe₀̣₅Se₀̣₅ thin films with critical current density over 1 MA/cm²

Abstract

Citation Formats

Magnetization of High-Field Superconductors journal, January 1964

From (π,0) magnetic order to superconductivity with (π,π) magnetic resonance in Fe1.02Te1−xSex journal, July 2010

Evidence for dominant Pauli paramagnetic effect in the upper critical field of single-crystalline FeTe 0.6 Se 0.4 journal, May 2010

High intergrain critical current density in fine-grain (Ba0.6K0.4)Fe2As2 wires and bulks journal, May 2012

Tc=21 K in epitaxial FeSe0.5Te0.5 thin films with biaxial compressive strain journal, March 2010

Enhanced superconducting transition temperature in FeSe0.5Te0.5 thin films journal, August 2009

Weak anisotropy of the superconducting upper critical field in Fe 1.11 Te 0.6 Se 0.4 single crystals journal, January 2010

Dynamics and mechanism of oxygen annealing in Fe1+yTe0.6Se0.4 single crystal journal, April 2014

Magneto-optical studies of current distributions in high- T c superconductors journal, April 2002

Iron-Based Layered Superconductor La[O 1- x F x ]FeAs ( x = 0.05−0.12) with T c = 26 K journal, March 2008

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Small anisotropy, weak thermal fluctuations, and high field superconductivity in Co-doped iron pnictide Ba(Fe1−xCox)2As2 journal, February 2009

Magneto-optical observations of crossing-lattice state in Bi 2 Sr 2 CaCu 2 O 8 + y journal, May 2002

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Magnetic relaxation and collective vortex creep in FeTe 0.6 Se 0.4 single crystal journal, September 2013

Observation of single vortices by magneto-optical imaging journal, October 2005

High current superconductivity in FeSe0.5Te0.5-coated conductors at 30 tesla journal, January 2013

Iron-based superconductors at high magnetic fields journal, September 2011

Anisotropies and Homogeneities of Superconducting Properties in Iron–Platinum–Arsenide Ca 10 (Pt 3 As 8 )(Fe 1.79 Pt 0.21 As 2 ) 5 journal, November 2012

Imaging the vortex-lattice melting process in the presence of disorder journal, July 2000

Magneto-optical investigations of superconductors journal, April 1995

Vortex phase diagram of Ba ( Fe 0.93 Co 0.07 ) 2 As 2 single crystals journal, December 2008

Evolution of Superconductivity in Fe 1+ y Te 1- x Se x Annealed in Te Vapor journal, September 2013

Direct observation of the current distribution in thin superconducting strips using magneto-optic imaging journal, December 1996

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Magnetization of High-Field Superconductors
journal, January 1964

From (π,0) magnetic order to superconductivity with (π,π) magnetic resonance in Fe1.02Te1−xSex
journal, July 2010

Evidence for dominant Pauli paramagnetic effect in the upper critical field of single-crystalline ${FeTe}_{0.6} {Se}_{0.4}$
journal, May 2010

High intergrain critical current density in fine-grain (Ba0.6K0.4)Fe2As2 wires and bulks
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Tc=21 K in epitaxial FeSe0.5Te0.5 thin films with biaxial compressive strain
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Enhanced superconducting transition temperature in FeSe0.5Te0.5 thin films
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Weak anisotropy of the superconducting upper critical field in ${Fe}_{1.11} {Te}_{0.6} {Se}_{0.4}$ single crystals
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Dynamics and mechanism of oxygen annealing in Fe1+yTe0.6Se0.4 single crystal
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