Surface reconstructions of (001) cleaved GdBa2Cu3O7-δ
1992 ◽
Vol 50
(1)
◽
pp. 106-107
Keyword(s):
Very few electron microscopy papers have been published on the atomic structure of the copper oxide based superconductor surfaces. Zandbergen et al. have reported that the surface of YBa2Cu3O7-δ was such that the terminating layer sequence is bulk-Y-CuO2-BaO-CuO-BaO, whereas the interruption at the grain boundaries is bulk-Y-CuO2-BaO-CuO. Bursill et al. reported that HREM images of the termination at the surface are in good agreement with calculated images with the same layer sequence as observed by Zandbergen et al. but with some oxygen deficiency in the two surface layers. In both studies only one or a few surfaces were studied.
1999 ◽
Vol 260
(1-2)
◽
pp. 12-28
◽
1997 ◽
Vol 76
(5)
◽
pp. 945-963
◽