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Magnetic (CoFe2O4)0.1(CeO2)0.9 nanocomposite as effective pinning centers in FeSe0.1Te0.9 thin films.
J Phys Condens Matter 2016; 28(2):025702JP

Abstract

Magnetic epitaxial (CoFe2O4)0.1(CeO2)0.9 nanocomposite layers were incorporated into superconducting FeSe0.1Te0.9 thin films as either a cap layer or a buffer layer. Both capped and buffered samples show an enhancement of the superconducting property compared to the reference sample without the incorporated layer, while the capped one shows the best pinning properties of all the samples. Specifically for the capped sample, the critical temperature Tc is ~12.5 K, while the self-field critical current density J(c)(sf)increases to as high as 1.20 MA cm(-2) at 4 K. Its J(c)(in-field) value shows a slower decrease with increasing applied magnetic field, with the lowest power-law exponent α values (derived following Jc[formula: see text](μ0H)(-α) by the log(Jc) − log(μ0H) plot) of 0.20, 0.23 and 0.33 at 2 K, 4 K and 8 K, respectively. This nanocomposite capped sample also exhibits a high upper critical field Hc2(0) of 166 T, which indicates its potential in high field applications. This pinning method provides an effective way of enhancing the superconducting property of iron chalcogenide thin film.

Authors+Show Affiliations

Department of Material Science and Engineering, Texas A&M University, College Station, TX 77843-3003, USA.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

26654936

Citation

Huang, Jijie, et al. "Magnetic (CoFe2O4)0.1(CeO2)0.9 Nanocomposite as Effective Pinning Centers in FeSe0.1Te0.9 Thin Films." Journal of Physics. Condensed Matter : an Institute of Physics Journal, vol. 28, no. 2, 2016, p. 025702.
Huang J, Chen L, Jian J, et al. Magnetic (CoFe2O4)0.1(CeO2)0.9 nanocomposite as effective pinning centers in FeSe0.1Te0.9 thin films. J Phys Condens Matter. 2016;28(2):025702.
Huang, J., Chen, L., Jian, J., Tyler, K., Li, L., Wang, H., & Wang, H. (2016). Magnetic (CoFe2O4)0.1(CeO2)0.9 nanocomposite as effective pinning centers in FeSe0.1Te0.9 thin films. Journal of Physics. Condensed Matter : an Institute of Physics Journal, 28(2), p. 025702. doi:10.1088/0953-8984/28/2/025702.
Huang J, et al. Magnetic (CoFe2O4)0.1(CeO2)0.9 Nanocomposite as Effective Pinning Centers in FeSe0.1Te0.9 Thin Films. J Phys Condens Matter. 2016 Jan 20;28(2):025702. PubMed PMID: 26654936.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Magnetic (CoFe2O4)0.1(CeO2)0.9 nanocomposite as effective pinning centers in FeSe0.1Te0.9 thin films. AU - Huang,Jijie, AU - Chen,Li, AU - Jian,Jie, AU - Tyler,Kevin, AU - Li,Leigang, AU - Wang,Han, AU - Wang,Haiyan, Y1 - 2015/12/11/ PY - 2015/12/15/entrez PY - 2015/12/15/pubmed PY - 2015/12/15/medline SP - 025702 EP - 025702 JF - Journal of physics. Condensed matter : an Institute of Physics journal JO - J Phys Condens Matter VL - 28 IS - 2 N2 - Magnetic epitaxial (CoFe2O4)0.1(CeO2)0.9 nanocomposite layers were incorporated into superconducting FeSe0.1Te0.9 thin films as either a cap layer or a buffer layer. Both capped and buffered samples show an enhancement of the superconducting property compared to the reference sample without the incorporated layer, while the capped one shows the best pinning properties of all the samples. Specifically for the capped sample, the critical temperature Tc is ~12.5 K, while the self-field critical current density J(c)(sf)increases to as high as 1.20 MA cm(-2) at 4 K. Its J(c)(in-field) value shows a slower decrease with increasing applied magnetic field, with the lowest power-law exponent α values (derived following Jc[formula: see text](μ0H)(-α) by the log(Jc) − log(μ0H) plot) of 0.20, 0.23 and 0.33 at 2 K, 4 K and 8 K, respectively. This nanocomposite capped sample also exhibits a high upper critical field Hc2(0) of 166 T, which indicates its potential in high field applications. This pinning method provides an effective way of enhancing the superconducting property of iron chalcogenide thin film. SN - 1361-648X UR - https://www.unboundmedicine.com/medline/citation/26654936/Magnetic__CoFe2O4_0_1_CeO2_0_9_nanocomposite_as_effective_pinning_centers_in_FeSe0_1Te0_9_thin_films_ L2 - https://doi.org/10.1088/0953-8984/28/2/025702 DB - PRIME DP - Unbound Medicine ER -