TY - JOUR
T1 - Surface morphology and growth mechanism of YBa2Cu3O7 films by chemical vapor deposition in a magnetic field
AU - Ma, Yanwei
AU - Watanabe, Kazuo
AU - Awaji, Satoshi
AU - Motokawa, Mitsuhiro
N1 - Copyright:
Copyright 2007 Elsevier B.V., All rights reserved.
PY - 2001/12
Y1 - 2001/12
N2 - We have investigated the influence of a magnetic field on YBa2Cu3O7 (YBCO) films grown directly on polycrystalline silver substrates by metalorganic chemical vapor deposition (CVD). Clearly, application of a magnetic field during the CVD process not only changed the surface morphology of YBCO films, but also improved their crystallinity and grain connectivity. Furthermore, it is found that the growth mechanism of YBCO films was changed from the spiral growth mode at zero field to the 2D or 3D island growth mode under an external magnetic field. A discussion on the mechanism of this field-induced growth mode change is also presented.
AB - We have investigated the influence of a magnetic field on YBa2Cu3O7 (YBCO) films grown directly on polycrystalline silver substrates by metalorganic chemical vapor deposition (CVD). Clearly, application of a magnetic field during the CVD process not only changed the surface morphology of YBCO films, but also improved their crystallinity and grain connectivity. Furthermore, it is found that the growth mechanism of YBCO films was changed from the spiral growth mode at zero field to the 2D or 3D island growth mode under an external magnetic field. A discussion on the mechanism of this field-induced growth mode change is also presented.
KW - A1. growth models
KW - A1. magnetic fields
KW - A3. metalorganic chemical vapor deposition
KW - B2. superconducting materials
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U2 - 10.1016/S0022-0248(01)01587-1
DO - 10.1016/S0022-0248(01)01587-1
M3 - Article
AN - SCOPUS:0035546578
VL - 233
SP - 483
EP - 489
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
SN - 0022-0248
IS - 3
ER -