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首页> 外文期刊>Physica, C. Superconductivity and its applications >Dependence of AC susceptibility of polycrystalline RuSr2GdCu2O8 superconductor on magnetic field amplitudes and frequencies
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Dependence of AC susceptibility of polycrystalline RuSr2GdCu2O8 superconductor on magnetic field amplitudes and frequencies

机译：多晶RuSr2GdCu2O8超导体的交流磁化率对磁场振幅和频率的依赖性

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Systematic measurements of the AC magnetic susceptibility of polycrystalline RuSr2GdCu2O8 (Ru-1212) samples are reported for various frequencies and magnetic field amplitudes. The study covered frequency range from 22 Hz to 12.5 kHz and field amplitudes between 0.5 and 25 G. The variation of the real part, chi', as well as, the imaginary part, chi", of AC susceptibility for Ru-1212 samples has been investigated as a function of temperature for different magnetic field amplitudes and frequencies. A qualitative analysis of AC susceptibility response for Ru-1212 superconductor near the transition temperature, T-c, is presented. A single distinct peak in the imaginary part of AC magnetic susceptibility versus temperature is typically observed upon entering the superconducting state. The dependence of peak temperature, T-p, of the chi" on magnetic field amplitude and frequency has been also investigated. It was found that the peak temperature, T-p, is shifted to higher temperatures by increasing frequency and to lower temperatures by increasing magnetic fields. (C) 2002 Elsevier Science B.V. All rights reserved. [References: 37]
机译：报告了针对各种频率和磁场幅度的多晶RuSr2GdCu2O8（Ru-1212）样品的交流磁化率的系统测量。该研究涵盖了从22 Hz到12.5 kHz的频率范围以及0.5至25 G的场振幅。Ru-1212样品的交流磁化率的实部chi'和虚部chi“的变化为研究了在不同磁场振幅和频率下温度随温度变化的函数，对Ru-1212超导体在转变温度Tc附近的交流磁化率响应进行了定性分析，在交流磁化率的虚部中有一个明显的峰与通常在进入超导状态时观察到温度。还研究了chi的峰值温度Tp对磁场幅度和频率的依赖性。发现峰值温度T-p通过增加频率而移至较高的温度，并通过增加磁场而移至较低的温度。 （C）2002 Elsevier Science B.V.保留所有权利。 [参考：37]

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