Morphological Study of YBa2Cu3Oy Thin Films Grown by Excimer Laser Ablation Method

Shingo TOMOHISA; Hiroshi NAKATSUKA; Minoru TACHIKI; Takeshi KOBAYASHI

Morphological Study of YBa₂Cu₃O_y Thin Films Grown by Excimer Laser Ablation Method

Shingo TOMOHISA, Hiroshi NAKATSUKA, Minoru TACHIKI, Takeshi KOBAYASHI

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A close correlation between the YBa₂Cu₃O_y film morphology and location of the (100) MgO substrate during growth by excimer laser ablation was obtained. When the susbtrate was placed inside the fringe portion of the laser plume, the spiral shape was most clearly seen on the entire film surface for both the conventional and eclipse ablation methods. When the substrate was placed outside the plume, the spiral growth was less pronounced. On the other hand, when the substrate was placed inside the plume core, marked deformation of the morphology occurred, and the superconducting critical temperature was lowered. This correlation was explained to some extent by the spatial variation of kinetic energy of the flying growth species.

Publication: IEICE TRANSACTIONS on Electronics Vol.E79-C No.9 pp.1264-1268

Publication Date: 1996/09/25

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Type of Manuscript: Special Section PAPER (Special Issue on Toward Digital and Analog Applications of Superconductors)

Category: Device technology

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Shingo TOMOHISA, Hiroshi NAKATSUKA, Minoru TACHIKI, Takeshi KOBAYASHI, "Morphological Study of YBa2Cu3Oy Thin Films Grown by Excimer Laser Ablation Method" in IEICE TRANSACTIONS on Electronics, vol. E79-C, no. 9, pp. 1264-1268, September 1996, doi: .
Abstract: A close correlation between the YBa₂Cu₃O_y film morphology and location of the (100) MgO substrate during growth by excimer laser ablation was obtained. When the susbtrate was placed inside the fringe portion of the laser plume, the spiral shape was most clearly seen on the entire film surface for both the conventional and eclipse ablation methods. When the substrate was placed outside the plume, the spiral growth was less pronounced. On the other hand, when the substrate was placed inside the plume core, marked deformation of the morphology occurred, and the superconducting critical temperature was lowered. This correlation was explained to some extent by the spatial variation of kinetic energy of the flying growth species.
URL: https://globals.ieice.org/en_transactions/electronics/10.1587/e79-c_9_1264/_p

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@ARTICLE{e79-c_9_1264,
author={Shingo TOMOHISA, Hiroshi NAKATSUKA, Minoru TACHIKI, Takeshi KOBAYASHI, },
journal={IEICE TRANSACTIONS on Electronics},
title={Morphological Study of YBa2Cu3Oy Thin Films Grown by Excimer Laser Ablation Method},
year={1996},
volume={E79-C},
number={9},
pages={1264-1268},
abstract={A close correlation between the YBa₂Cu₃O_y film morphology and location of the (100) MgO substrate during growth by excimer laser ablation was obtained. When the susbtrate was placed inside the fringe portion of the laser plume, the spiral shape was most clearly seen on the entire film surface for both the conventional and eclipse ablation methods. When the substrate was placed outside the plume, the spiral growth was less pronounced. On the other hand, when the substrate was placed inside the plume core, marked deformation of the morphology occurred, and the superconducting critical temperature was lowered. This correlation was explained to some extent by the spatial variation of kinetic energy of the flying growth species.},
keywords={},
doi={},
ISSN={},
month={September},}

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TY - JOUR
TI - Morphological Study of YBa2Cu3Oy Thin Films Grown by Excimer Laser Ablation Method
T2 - IEICE TRANSACTIONS on Electronics
SP - 1264
EP - 1268
AU - Shingo TOMOHISA
AU - Hiroshi NAKATSUKA
AU - Minoru TACHIKI
AU - Takeshi KOBAYASHI
PY - 1996
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E79-C
IS - 9
JA - IEICE TRANSACTIONS on Electronics
Y1 - September 1996
AB - A close correlation between the YBa₂Cu₃O_y film morphology and location of the (100) MgO substrate during growth by excimer laser ablation was obtained. When the susbtrate was placed inside the fringe portion of the laser plume, the spiral shape was most clearly seen on the entire film surface for both the conventional and eclipse ablation methods. When the substrate was placed outside the plume, the spiral growth was less pronounced. On the other hand, when the substrate was placed inside the plume core, marked deformation of the morphology occurred, and the superconducting critical temperature was lowered. This correlation was explained to some extent by the spatial variation of kinetic energy of the flying growth species.
ER -