Abstract

The magnetic properties of YBa2Cu3O7-x (YBCO) multilayered film containing BaHfO3 (BHO) nanorods at zero and small fields have been investigated. The dc magnetization and the ac susceptibility were measured with a SQUID magnetometer. The paramagnetic magnetization is shown after the field-cool-warming below the transition temperature Tc = 87 K. The nonlinear susceptibility had a large peak around Tc, which reflects a glass-transition. An aging effect occured in the relaxation of zero-field-cooled magnetization below the Tc. Paramagnetic behavior and magnetic-glass properties were observed in the YBCO multilayered film containing BHO nanorods. The results suggest that the YBCO multilayered film is a novel magnetic-glass system at low fields.

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