Sg. Romanov et al., RESISTANCE ANOMALIES AND NEGATIVE MAGNETORESISTANCE IN A REGULAR 3D-LATTICE OF SUPERCONDUCTING NANOSTRUCTURES, JETP letters, 58(11), 1993, pp. 824-829
Regular 3D lattices of superconducting nanostructures of the variable-
thickness-bridge type have been prepared by using indium to fill voids
in a crystallographically ordered insulating matrix. The matrix was m
odified by molecular lamination of TiO2 on its interior surface. The R
(T, H) dependence was measured. The R(T) curve exhibits two successive
resistance anomalies as the temperature is lowered. These anomalies a
re associated with a negative behavior of the magnetoresistance.