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Difference in individual layer properties in cuprate/manganite structures deposited by laser ablation
Author(s) -
Chakalov R.A.,
Jeynes C.,
Mikheenko P.,
Allsworth M.D.,
Darlington C.N.W.,
Colclough M.S.,
Muirhead C.M.
Publication year - 2004
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.200310056
Subject(s) - x ray photoelectron spectroscopy , materials science , manganite , oxidizing agent , annealing (glass) , sputtering , cuprate , laser ablation , photoemission spectroscopy , spectroscopy , layer (electronics) , single crystal , laser , condensed matter physics , thin film , nuclear magnetic resonance , crystallography , optics , nanotechnology , optoelectronics , chemistry , ferromagnetism , physics , doping , organic chemistry , quantum mechanics , composite material
We report measurements of the electrical and magnetic properties of bilayers of YBa 2 Cu 3 O 7 (YBCO) and La 2/3 Ca 1/3 MnO 3 (LCMO) deposited on SrTiO 3 substrates by Pulsed Laser Deposition. We find distinct differences in the properties depending on the order of the deposition, with the lower layer always being degraded. In particular, the YBCO has a T c suppressed to ∼ 60 K when it is covered by LCMO. We argue that the effect is not due to an electronic interaction, but results from a reduction in the oxygen content of the YBCO by the LCMO.