Magnetic and Electrical Properties of Single-Crystal La1.99Sr0.01Cu1 ? yNiyO4 |
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| Authors: | N Watanabe T Masui Y Itoh I Kato T Machi N Koshizuka and M Murakami |
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| Affiliation: | (1) Superconductivity Research Laboratory, International Superconductivity Technology Center, 1-10-13 Shinonome, Koto-ku, Tokyo, 135-0062, Japan;(2) Japan Science and Technology Corporation, Kawaguchi, Japan |
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| Abstract: | We report the out-of-plane and in-plane magnetic susceptibility and resistivity of Ni-doped La1.99Sr0.01CuO4 single crystals grown by Traveling-Solvent Floating-Zone technique. Our data shows that in lightly Sr-doped compounds the Néel temperature T
N increased with increasing Ni concentration. At high temperatures, the resistivity is described within the impurity band conduction model. As the temperature is lowered, the resistivity behavior change to the variable range hopping model associated with the evolving of antiferromagnetic ordering. |
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| Keywords: | LaSrCuO Ni substitution effect Né el temperature |
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