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Re-appearance of antiferromagnetic ordering with Zn and Ni substitution in La_{2-x}Sr_xCuO_4

T. Machi·I. Kato·R. Hareyama·N. Watanabe·Y. Itoh·N. Koshizuka·S. Arai·M. Murakami
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Abstract

The effects of nonmagnetic Zn and magnetic Ni substitution for Cu site on magnetism are studied by measurements of uniform magnetic susceptibility for lightly doped La_{2-x}Sr_xCu_{1-z}M_zO_4 (M=Zn or Ni) polycrystalline samples. For the parent x=0, Zn doping suppresses the Néel temperature T_N whereas Ni doping hardly changes T_N up to z=0.3. For the lightly doped samples with T_N~0, the Ni doping recovers T_N. For the superconducting samples, the Ni doping induces the superconductivity-to-antiferromagnetic transition (or crossover). All the heavily Ni doped samples indicate a spin glass behavior at \~15 K.

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T. Machi, I. Kato, R. Hareyama, N. Watanabe, Y. Itoh, N. Koshizuka, S. Arai, M. Murakami. 2003-04-22. Re-appearance of antiferromagnetic ordering with Zn and Ni substitution in La_{2-x}Sr_xCuO_4. https://doi.org/10.1016/s0921-4534(02)02394-8

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