Abstract
Magnetic behavior of Fe atoms in YBa2(Cu1−x Fe x )3O y system in superconducting (SC) and non-SC states is studied. In SC region one magnetic ordering point Tm1 is observed for all Fe atoms in Cu1 sites: Tm1=10 K and 16 K for x=0.05 and x=0.10, respectively. In the non-SC state for x=0.05 Cu1 and Cu2 sublattices are magnetically independent and two magnetic ordering points are found: Tm1=20 K and Tm2=405K. For x=0.10 a strong magnetic interaction between Cu1 and Cu2 sublattices appears and only one ordering point Tm2=435 K is observed.
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Lyubutin, I.S., Terziev, V.G., Dmitrieva, T.V. et al. Magnetic ordering of Fe atoms in YBa2(Cu1−x Fe x )3O3 in superand semiconducting states. Hyperfine Interact 70, 1203–1206 (1992). https://doi.org/10.1007/BF02397545
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DOI: https://doi.org/10.1007/BF02397545