THE STUDY OF MOSSBAUER-EFFECT IN EUBA2CU3O7-Y
1992
EuBa2(Cu1-xFex)3O7-x has been investigated by the57Fe and151Eu Mossbauer effect. The57Fe Mossbauer spectra of the EuBa2(Cu1xFex)3O7-y without or with DC electric current (the current strength I=0.5A) around the superconducting transition temperature have been measured. The results indicate that the isomer shift (IS) and the quadrupole splitting (QS) of the Fe replacing the Cu(2) vary neither with increasing the Fe content nor with the small DC eletric, current passing the superconductor and that the IS and the QS of the Fe replacing the Cu(1) vary with the Fe content. Especially, the IS and the QS of the Fe (D3) replacing the Cu(1) are changed when the small electric current passes the superconductor at 80K.
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