Effects of Current-Injection on Superconductivity of YBa_2Cu_3O_(7-δ) in La_(0.8)Te_(0.2)MnO_3/YBa_2

来源 :Journal of Rare Earths | 被引量 : 0次 | 上传用户:lrdw149
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La_(0.8)Te_(0.2)MnO_3/YBa_2Cu_3O_(7-δ)(F/S)bilayers were fabricated by electrophoretic technique. The thickness of La_(0.8)Te_(0.2)MnO_3 is ~70 μm, the dimensions of YBa_2Cu_3O_(7-δ) superconductor are 5 mm×10 mm×0.5 mm. The image of cross-sectional profile was measured by scanning electron microscopy (SEM). Standard four-probe method was used for YBa_2Cu_3O_(7-δ) superconducting resistance measurements. Either 1 mA current is injected from S layer to F layer ((+I_(inj))) or from F layer to S layer (-I_(inj)),the normal resistance is lower than that without current injection. The critical transition temperature is higher than that without current injection. The thickness of La_ (0.8) Te_ (0.2) MnO_3 is ~ 70 μm, the dimensions of YBa_2Cu_3O_ (7_δ) (F / S) bilayers were fabricated by electrophoretic technique. 7-δ) superconductor are 5 mm × 10 mm × 0.5 mm. The image of cross-sectional profile was measured by scanning electron microscopy (SEM). Standard four-probe method was used for YBa_2Cu_3O_ (7-δ) superconducting resistance measurements. Either 1 mA current is injected from the S layer to F layer ((+ I_ (inj)) or from F layer to S layer (-I inj ()), the normal resistance is lower than that without current injection. temperature is higher than that without current injection.
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