Influence of Co, Ni and Zn substitution for Cu on the structural and superconducting properties of (Hg 0.7 Cr 0.3 )Sr 2 CuO 4+δ

Kandyel, E.; Sekkina, Morsy Abou

doi:10.1016/s0022-3697(01)00268-2

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“…In these studies, it was found that doping of such impurities leads to a decrease in the critical temperature "T c ". The proposed reasons for the T c suppression after the substitution of impurity atoms in CuO 2 planes are magnetic pair breaking, potential scattering of carriers, localization of carriers and suppression of effective pairing interaction [15][16][17]. The magnetic ions Co, Ni and Fe produce the magnetic pair breaking and localization of carriers due the interaction between the Cooper pairs and the magnetic spins of the impurity atoms [18][19][20].…”

Section: Introductionmentioning

confidence: 99%