EuSr2RuCu2-xZnxO8中Zn对CU的替代效应

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通过对EuSr2RuCu2-xZnxO8超导体系的结构、电阻和磁化强度的观测,研究了Zn对Cu的部分替代对其超导电性和磁性的影响.结果表明,Zn部分替代Cu后EuSr2RuCu2-xZnxO8体系仍能保持单相的上限浓度为x=0.2;替代导致样品发生四方-正交的结构相变,并对其超导电性具有强烈的破坏作用,x=0.01的样品在4.2 K以上已不再呈现超导电性;替代增强了Ru离子之间的铁磁相互作用,导致铁磁相变温度的提高.
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