Home > Publications database > a -axis YBa 2 Cu 3 O 7− x /PrBa 2 Cu 3 O 7− x /YBa 2 Cu 3 O 7− x trilayers with subnanometer rms roughness > print |
001 | 903134 | ||
005 | 20220103172039.0 | ||
024 | 7 | _ | |a 10.1063/5.0034648 |2 doi |
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100 | 1 | _ | |a Suyolcu, Y. Eren |0 P:(DE-HGF)0 |b 0 |
245 | _ | _ | |a a -axis YBa 2 Cu 3 O 7− x /PrBa 2 Cu 3 O 7− x /YBa 2 Cu 3 O 7− x trilayers with subnanometer rms roughness |
260 | _ | _ | |a Melville, NY |c 2021 |b AIP Publ. |
336 | 7 | _ | |a article |2 DRIVER |
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336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
520 | _ | _ | |a We demonstrate a-axis YBa 2 Cu 3 O 7−x /PrBa 2 Cu 3 O 7−x /YBa 2 Cu 3 O 7−x trilayers grown on (100) LaAlO 3 substrates with improved interfacesmoothness. The trilayers are synthesized by ozone-assisted molecular-beam epitaxy. The thickness of the PrBa 2 Cu 3 O 7−x layer is held con-stant at 8 nm, and the thickness of the YBa 2 Cu 3 O 7−x layers is varied from 24 nm to 100 nm. X-ray diffraction measurements show all trilayersto have >97% a-axis content. The rms roughness of the thinnest trilayer is <0.7 nm, and this roughness increases with the thickness of theYBa 2 Cu 3 O 7−x layers. The thickness of the YBa 2 Cu 3 O 7−x layers also affects the transport properties: while all samples exhibit an onset of thesuperconducting transition at and above 85 K, the thinner samples show wider transition widths, ΔT c . High-resolution scanning transmissionelectron microscopy reveals coherent and chemically sharp interfaces and that growth begins with a cubic (Y,Ba)CuO 3−x perovskite phase thattransforms into a-axis oriented YBa 2 Cu 3 O 7−x as the substrate temperature is ramped up. |
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700 | 1 | _ | |a Sun, Jiaxin |0 P:(DE-HGF)0 |b 1 |
700 | 1 | _ | |a Goodge, Berit H. |0 0000-0003-0948-7698 |b 2 |
700 | 1 | _ | |a Park, Jisung |0 0000-0002-6305-7560 |b 3 |
700 | 1 | _ | |a Schubert, Jürgen |0 P:(DE-Juel1)128631 |b 4 |
700 | 1 | _ | |a Kourkoutis, Lena F. |0 P:(DE-HGF)0 |b 5 |
700 | 1 | _ | |a Schlom, Darrell G. |0 0000-0003-2493-6113 |b 6 |e Corresponding author |
773 | _ | _ | |a 10.1063/5.0034648 |g Vol. 9, no. 2, p. 021117 - |0 PERI:(DE-600)2722985-3 |n 2 |p 021117 - |t APL materials |v 9 |y 2021 |x 2166-532X |
856 | 4 | _ | |u https://juser.fz-juelich.de/record/903134/files/APL_a-Achsen%20YBCO_Cornell.pdf |y OpenAccess |
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