Dependence of epitaxial Ba(Fe1-x Cox)2 As2 thin films properties on SrTiO3 template thickness

S. Lee; J. Jiang; J. D. Weiss; C. W. Bark; C. Tarantini; M. D. Biegalski; A. Polyanskii; Y. Zhang; C. T. Nelson; X. Q. Pan; E. E. Hellstrom; D. C. Larbalestier; C. B. Eom

doi:10.1109/TASC.2011.2107722

Dependence of epitaxial Ba(Fe_1-x Co_x)₂ As₂ thin films properties on SrTiO₃ template thickness

S. Lee, J. Jiang, J. D. Weiss, C. W. Bark, C. Tarantini, M. D. Biegalski, A. Polyanskii, Y. Zhang, C. T. Nelson, X. Q. Pan, E. E. Hellstrom, D. C. Larbalestier, C. B. Eom

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Abstract-In our previous report, we demonstrated the growth of high-quality epitaxial Co-doped Ba(Fe_1-x Co_x )₂ As ₂ (Ba-122) thin films using single crystalline SrTiO₃ (STO) templates on (La, Sr)(A1, Ta)O₃ (LSAT) substrates with pulsed laser deposition (PLD). Here, we report the dependence of the structural and superconducting properties of Ba-122 thin films on STO templates that were 2-151) unit cell (u.c.) thick. We obtained genuine epitaxial thin films with high crystalline quality and excellent superconducting properties for templates above a critical thickness, which was 51) u.c. for our growth condition. Although the quality of Ba-122 is excellent above the critical thickness, the best crystalline quality and superconducting properties were obtained on 11)1) u.c.-thick STO templates. The best-quality Ba-122 thin films show an on-set transition temperature (T_c,on-set) as high as 22.8 K, a transition width (ΔT_c) as narrow as 1.3 K, and critical current density (J_c) as high as 3 MA/cm².

Original language	English
Article number	5721753
Pages (from-to)	2882-2886
Number of pages	5
Journal	IEEE Transactions on Applied Superconductivity
Volume	21
Issue number	3 PART 3
DOIs	https://doi.org/10.1109/TASC.2011.2107722
State	Published - Jun 2011
Externally published	Yes

Funding

Manuscript received September 01, 2010; accepted October 19, 2010. Date of publication February 28, 2011; date of current version May 27, 2011. This work was supported in part by the US Department of Energy under Grant DE-FG02-06ER46327 (C.B.E.), by the State of Florida under NSF Cooperative Agreement DMR-0084173, and by AFOSR under Grant FA9550-06-1-0474 (E.E.H. and D.C.L.), and the US Department of Energy under Grant DE-FG02-07ER46416 (X.Q.P.).

Keywords

Iron pnictides
Pulsed laser deposition
Templates
Thin films

Access to Document

10.1109/TASC.2011.2107722

Cite this

Lee, S., Jiang, J., Weiss, J. D., Bark, C. W., Tarantini, C., Biegalski, M. D., Polyanskii, A., Zhang, Y., Nelson, C. T., Pan, X. Q., Hellstrom, E. E., Larbalestier, D. C., & Eom, C. B. (2011). Dependence of epitaxial Ba(Fe_1-x Co_x)₂ As₂ thin films properties on SrTiO₃ template thickness. IEEE Transactions on Applied Superconductivity, 21(3 PART 3), 2882-2886. Article 5721753. https://doi.org/10.1109/TASC.2011.2107722

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title = "Dependence of epitaxial Ba(Fe1-x Cox)2 As2 thin films properties on SrTiO3 template thickness",

abstract = "Abstract-In our previous report, we demonstrated the growth of high-quality epitaxial Co-doped Ba(Fe1-x Cox )2 As 2 (Ba-122) thin films using single crystalline SrTiO3 (STO) templates on (La, Sr)(A1, Ta)O3 (LSAT) substrates with pulsed laser deposition (PLD). Here, we report the dependence of the structural and superconducting properties of Ba-122 thin films on STO templates that were 2-151) unit cell (u.c.) thick. We obtained genuine epitaxial thin films with high crystalline quality and excellent superconducting properties for templates above a critical thickness, which was 51) u.c. for our growth condition. Although the quality of Ba-122 is excellent above the critical thickness, the best crystalline quality and superconducting properties were obtained on 11)1) u.c.-thick STO templates. The best-quality Ba-122 thin films show an on-set transition temperature (Tc,on-set) as high as 22.8 K, a transition width (ΔTc) as narrow as 1.3 K, and critical current density (Jc) as high as 3 MA/cm2.",

keywords = "Iron pnictides, Pulsed laser deposition, Templates, Thin films",

author = "S. Lee and J. Jiang and Weiss, \{J. D.\} and Bark, \{C. W.\} and C. Tarantini and Biegalski, \{M. D.\} and A. Polyanskii and Y. Zhang and Nelson, \{C. T.\} and Pan, \{X. Q.\} and Hellstrom, \{E. E.\} and Larbalestier, \{D. C.\} and Eom, \{C. B.\}",

year = "2011",

month = jun,

doi = "10.1109/TASC.2011.2107722",

language = "English",

volume = "21",

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Lee, S, Jiang, J, Weiss, JD, Bark, CW, Tarantini, C, Biegalski, MD, Polyanskii, A, Zhang, Y, Nelson, CT, Pan, XQ, Hellstrom, EE, Larbalestier, DC & Eom, CB 2011, 'Dependence of epitaxial Ba(Fe_1-x Co_x)₂ As₂ thin films properties on SrTiO₃ template thickness', IEEE Transactions on Applied Superconductivity, vol. 21, no. 3 PART 3, 5721753, pp. 2882-2886. https://doi.org/10.1109/TASC.2011.2107722

TY - JOUR

T1 - Dependence of epitaxial Ba(Fe1-x Cox)2 As2 thin films properties on SrTiO3 template thickness

AU - Lee, S.

AU - Jiang, J.

AU - Weiss, J. D.

AU - Bark, C. W.

AU - Tarantini, C.

AU - Biegalski, M. D.

AU - Polyanskii, A.

AU - Zhang, Y.

AU - Nelson, C. T.

AU - Pan, X. Q.

AU - Hellstrom, E. E.

AU - Larbalestier, D. C.

AU - Eom, C. B.

PY - 2011/6

Y1 - 2011/6

N2 - Abstract-In our previous report, we demonstrated the growth of high-quality epitaxial Co-doped Ba(Fe1-x Cox )2 As 2 (Ba-122) thin films using single crystalline SrTiO3 (STO) templates on (La, Sr)(A1, Ta)O3 (LSAT) substrates with pulsed laser deposition (PLD). Here, we report the dependence of the structural and superconducting properties of Ba-122 thin films on STO templates that were 2-151) unit cell (u.c.) thick. We obtained genuine epitaxial thin films with high crystalline quality and excellent superconducting properties for templates above a critical thickness, which was 51) u.c. for our growth condition. Although the quality of Ba-122 is excellent above the critical thickness, the best crystalline quality and superconducting properties were obtained on 11)1) u.c.-thick STO templates. The best-quality Ba-122 thin films show an on-set transition temperature (Tc,on-set) as high as 22.8 K, a transition width (ΔTc) as narrow as 1.3 K, and critical current density (Jc) as high as 3 MA/cm2.

AB - Abstract-In our previous report, we demonstrated the growth of high-quality epitaxial Co-doped Ba(Fe1-x Cox )2 As 2 (Ba-122) thin films using single crystalline SrTiO3 (STO) templates on (La, Sr)(A1, Ta)O3 (LSAT) substrates with pulsed laser deposition (PLD). Here, we report the dependence of the structural and superconducting properties of Ba-122 thin films on STO templates that were 2-151) unit cell (u.c.) thick. We obtained genuine epitaxial thin films with high crystalline quality and excellent superconducting properties for templates above a critical thickness, which was 51) u.c. for our growth condition. Although the quality of Ba-122 is excellent above the critical thickness, the best crystalline quality and superconducting properties were obtained on 11)1) u.c.-thick STO templates. The best-quality Ba-122 thin films show an on-set transition temperature (Tc,on-set) as high as 22.8 K, a transition width (ΔTc) as narrow as 1.3 K, and critical current density (Jc) as high as 3 MA/cm2.

KW - Iron pnictides

KW - Pulsed laser deposition

KW - Templates

KW - Thin films

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