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期刊论文

Critical Behaviour of Sintered SrRuO3

侯登录HOU Deng-Lu JIANG En-Yong LI Feng-Wu BAI Hai-Li ZHOU Xue-Zhi Henry KUNKEL Gwyn WILLIAMS

CHIN. PHYS. LETT. Vol. 19, No. 5 (2002),-0001,():

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摘要/描述

From the measurements of the ac susceptibility of SrRuO3, we determine the critical temperature TC=159.7 ± 0.2 K and critical exponents δ = 2.50 ± 0.15 (from the critical isotherm orδ= 3.17 ± 0.20 (from magnetization versus magnetic field at Curie temperature), γ+β = 1.50±0.05 (from the temperature dependence of the internal field of the crossover line), and γ = 0.96 ± 0.05 (from the temperature dependence of the susceptibility along the same line). These exponent values are very close to those predicted by the mean field model.

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