Magnetic states of Cu1 sublattice in YBa2Cu3Oy high Tc compounds at different oxygen content期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Magnetic states of Cu1 sublattice in YBa2Cu3Oy high Tc compounds at different oxygen content

Authors:	T Tamaki A Ito I S Lyubutin A Ya Shapiro

Institution:	(1) Faculty of Science, Ochanomizu University, Bunkyo-ku, 112 Tokyo, Japan;(2) Institute of Crystallography, Russian Academy of Sciences, Leninsky pr. 59, 117333 Moscow, Russia

Abstract:	Magnetic states of Cu1 sublattice in YBa₂Cu₃O_y: 1%⁵⁷Fe compounds with 6.09 y6.98 were investigated by⁵⁷Fe Mössbauer spectroscopy at 1.68T300 K. It has been found that, upon reducingy, the magnetic transition temperatureT _ml changes from 3.3 to 12 K aroundy6.4 where the superconductivity disappears. The magnetic phase diagram for the Cu1 sublattice is plotted.

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