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SUPPRESSION OF SUPERCONDUCTIVITY IN ORTHORHOMBIC LA(2-X)M(X)CUO(4) (M=CA,SR)

Abstract:
We have extended the calcium solid-solubility limit in La2-xCaxCuO4 to x = 0.2 using synthesis at high oxygen pressure. The superconducting transition temperature increases with doping to 34 K at x = 0.15 and is suppressed for x > 0.15, similar to the Sr-substituted material. At a fixed doping level, the optimum superconducting properties (the highest Tc) are found for flat and square CuO2 planes. © 1994.
Publication status:
Published

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Journal:
PHYSICA C
Volume:
235
Issue:
PART 1
Pages:
339-340
Publication date:
1994-12-01
DOI:
ISSN:
0921-4534
Pubs id:
pubs:66407
UUID:
uuid:040e36b3-701d-4cff-8306-5fd07a40f223
Local pid:
pubs:66407
Source identifiers:
66407
Deposit date:
2012-12-19

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