Atomic-scale identification of novel planar defect phases in heteroepitaxial YBa2Cu3O7−δ thin films
Source abstract
Abstract
We have discovered two novel types of planar defects that appear in heteroepitaxial YBa2Cu3O7−δ (YBCO123) thin films, grown by pulsed-laser deposition (PLD) either with or without a La2/3Ca1/3MnO3 (LCMO) overlayer, using the combination of high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) imaging and electron energy loss spectroscopy (EELS) mapping for unambiguous identification. These planar lattice defects are based on the intergrowth of either a BaO plane between two CuO chains or multiple Y-O layers between two CuO2 planes, resulting in non-stoichiometric layer sequences that could directly impact the high-Tc superconductivity.
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Research context
OpenAlex topics: Physics of Superconductivity and Magnetism · Electronic and Structural Properties of Oxides · Advanced Condensed Matter Physics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Canadian Centre for Electron Microscopy, McMaster University 1 , 1280 Main Street West, Hamilton, Ontario L8S 4M1, Canada
Department of Physics, University of Toronto 2 , 60 St. George Street, ON M5S1A7, Toronto, Canada
Canadian Institute for Advanced Research 3 , Toronto M5G1Z8, Canada
Funding
Canadian Network for Research and Innovation in Machining Technology, Natural Sciences and Engineering Research Council of Canada · Canadian Institute for Advanced Research
References (36)
Show source-provided references
1. Applied Physics Letters · 2009 · 95 · 24250510.1063/1.3274044 ↗
2. Solid-State Electronics · 2003 · 47 · 224510.1016/s0038-1101(03)00205-3 ↗
3. Physica C: Superconductivity · 2001 · 364-365 · 29810.1016/s0921-4534(01)00775-4 ↗
4. Annalen der Physik · 2004 · 13 · 9310.1002/andp.200310061 ↗
5. Science (New York, N.Y.) · 2007 · 318 · 111410.1126/science.1149338 ↗
6. Materials Science and Engineering: B · 1992 · 14 · 18810.1016/0921-5107(92)90119-t ↗
7. Applied Physics Letters · 2013 · 103 · 05260610.1063/1.4813840 ↗
8. Applied Physics Letters · 1990 · 57 · 248110.1063/1.103836 ↗
9. Nature Materials · 2007 · 6 · 63110.1038/nmat1989 ↗
10. Journal of Materials Research · 1999 · 14 · 273210.1557/jmr.1999.0366 ↗
11. Journal of Solid State Chemistry · 1991 · 93 · 31610.1016/0022-4596(91)90305-2 ↗
12. Ultramicroscopy · 2010 · 110 · 92610.1016/j.ultramic.2010.03.008 ↗
13. Superconductor Science and Technology · 2012 · 25 · 06500910.1088/0953-2048/25/6/065009 ↗
14. Ultramicroscopy · 2006 · 106 · 102410.1016/j.ultramic.2006.04.016 ↗
15. Narlikar · 2004 · 1
16. Reviews of Modern Physics · 2000 · 72 · 96910.1103/revmodphys.72.969 ↗
17. Physica C: Superconductivity · 2001 · 349 · 8910.1016/s0921-4534(00)01533-1 ↗
18. Nature · 1999 · 397 · 4510.1038/16209 ↗
19. Proceedings of the Japan Academy. Ser. B: Physical and Biological Sciences · 1987 · 63 · 16510.2183/pjab.63.165 ↗
20. Japanese Journal of Applied Physics Series · 1992 · 7 · 20
21. Journal of Materials Research · 1987 · 2 · 42410.1557/jmr.1987.0424 ↗
22. Acta Crystallographica Section C · 1988 · 44 · 1110.1107/s0108270187008588 ↗
23. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences · 1991 · 434 · 27910.1098/rspa.1991.0093 ↗
24. Ultramicroscopy · 1994 · 54 · 6110.1016/0304-3991(94)90092-2 ↗
25. Physica C: Superconductivity · 1991 · 179 · 1
26. Journal of Solid State Chemistry · 1995 · 115 · 52510.1006/jssc.1995.1169 ↗
27. Bauer · 201210.1007/978-3-642-24624-1 ↗
28. Physical Review Letters · 2004 · 92 · 02700310.1103/physrevlett.92.027003 ↗
29. Physical Review Letters · 2006 · 97
30. Physical Review B · 2006 · 74
31. Nature Materials · 2012 · 11 · 32910.1038/nmat3247 ↗
32. Applied Physics Letters · 2013 · 102 · 08190610.1063/1.4793749 ↗
33. Journal of the American Chemical Society · 2007 · 129 · 259310.1021/ja0671316 ↗
34. Modern Physics Letters B · 1989 · 03 · 99310.1142/s0217984989001540 ↗
35. Phase Transitions · 1989 · 19 · 23110.1080/01411598908244514 ↗
36. Physica C: Superconductivity · 1999 · 341-348 · 97