Interface disorder and transport properties in HTC/CMR superlattices

N.HABERKORN, J. GUIMPEL, M.SIRENA, L.B.STEREN, G.CAMPILLO, W.SALDARRIAGA, M.E.G OMEZ

PHYSICA C - SUPERCONDUTIVITY

Elsevier

Lugar: Amsterdam; Año: 2004 vol. 408 p. 896 - 897

0921-4534

The physical properties of superlattices are a .ected by interface disorder,like roughness and interdi .usion.X-ray diffraction allows its measurement through modeling and structure re .nement.The high-T c RBa2Cu3O7 (RBCO)and colossal magnetoresistance La x A1 xMnO3 (LAMO)perovskites are interesting superlattice partners given their similar lattice parameters and because the combination of magnetic and superconducting properties is interesting for both basic and applied research.We have investigated the structural and transport properties of YBCO/La2 =3Ca1 =3MnO3 and GdBCO/La0 :6Sr0 :04MnO3 superlattices grown by sputtering on (1 0 0)MgO.We .nd a roughness of 1 RBCO unit cell and a 30%interdi .usion in the same length from the interfaces for all samples.The superconducting behavior is found strongly dependent on the LAMO layer thickness.T c RBa2Cu3O7 (RBCO)and colossal magnetoresistance La x A1 xMnO3 (LAMO)perovskites are interesting superlattice partners given their similar lattice parameters and because the combination of magnetic and superconducting properties is interesting for both basic and applied research.We have investigated the structural and transport properties of YBCO/La2 =3Ca1 =3MnO3 and GdBCO/La0 :6Sr0 :04MnO3 superlattices grown by sputtering on (1 0 0)MgO.We .nd a roughness of 1 RBCO unit cell and a 30%interdi .usion in the same length from the interfaces for all samples.The superconducting behavior is found strongly dependent on the LAMO layer thickness.