Microscopic observation of interface structures of YBaCuO/MgO/YBaCuO double-heteroepitaxial thin films by TEM

Conference · Fri Mar 01 04:00:00 EST 1991 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:5767469

Sakuta, K; Iyori, M; Kobayashi, T ^[1]; Matsui, M; Nakajima, M ^[2]

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1. Osaka Univ. (Japan)
2. Yokohama R and D Lab., Furukawa Electric Co., Ltd., Nishi-ku, Yokohama 220 (JP)

The authors of this paper have fabricated the YBaCuO/MgO/YBaCuO double-heterostructure (DHS) using conventional rf magnetron sputtering. The formation of (110) YBaCuO/(100)MgO/(110)YBaCuO on (110)SrTiO{sub 3} substrate, and (001)YBaCuO/(100)MgO/(100)YBaCuO and (001) YBaCuO/ (100)MgO/(001)YBaCuO on (100)MgO substrate are demonstrated. According to the RHEED observations, each layer of the DHS was grown epitaxially. The cross sectional TEM observation of the (001)YBaCuO/(100)MgO(2nm)/(001)YBaCuO structure was carried out for characterizations of the heterostructures. The ultra-thin MgO layer grew island-shape. The MgO island formation was continuing and stimulated much more along with the top YBaCuO growth. The YBaCuO atomic arrange shape implied that the YBaCuO growth mechanism was the so-called atomic layer epitaxy.

• OSTI ID: 5767469
• Report Number(s): CONF-900944--
• Conference Information: Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 27:2
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
ELECTRON MICROSCOPY
ELECTRON TUBES
ELECTRONIC EQUIPMENT
EPITAXY
EQUIPMENT
FABRICATION
FILMS
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
MAGNETRONS
MICROSCOPY
MICROSTRUCTURE
MICROWAVE EQUIPMENT
MICROWAVE TUBES
OXIDES
OXYGEN COMPOUNDS
SPUTTERING
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUBSTRATES
THIN FILMS
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSMISSION ELECTRON MICROSCOPY
YTTRIUM COMPOUNDS
YTTRIUM OXIDES