In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 37, No. 11A ( 1998-11-01), p. L1304-
Abstract:
The effect of n =1(2201) buffer layers on n =2(2212) and n =3(2223) thin films of Bi 2 Sr 2 Ca n -1 Cu n O y was investigated to reduce the strain caused by the lattice mismatch between the films and the substrates. The bilayer thin films of 2223/2201 and 2212/2201 were grown epitaxially on SrTiO 3 (100) substrates by dc sputtering.
When the thickness of the buffer layer was 10–25 nm, the superconducting transition temperature increased by ∼20 K for 2223/2201 and by ∼6 K for 2212/2201. The increase was attributed to the reduction of the strain from the experimental results of the full width at half-maximum of X-ray diffraction peaks, the length along the c -axis and the roughness of the film surface.
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
DOI:
10.1143/JJAP.37.L1304
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
1998
detail.hit.zdb_id:
218223-3
detail.hit.zdb_id:
797294-5
detail.hit.zdb_id:
2006801-3
detail.hit.zdb_id:
797295-7
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