Abstract
Superconductor-ferromagnet thin film heterostructures in lateral geometry were prepared to study the long-range proximity effect. The high temperature superconductor YBa2Cu3Ox (YBCO) as superconductive electrode and La0.67Sr0.33MnO3 (LSMO) as ferromagnetic separation were used. The length of the ferromagnetic layer between two YBCO microstrip electrodes was about 3 μm. The temperature dependence of the resistance of these structures was measured. The results obtained showed that the separation of the superconducting YBCO microstrips is too large for observation of a long-range proximity effect; further optimization of the structures is, therefore, needed.
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