磁光法测量BSCCO-2212单晶涨落感生抗磁性
Measurement of Fluctuation-induced Diamagnetism in BSCCO-2212 single crystals using Magneto-optics
摘要：
具有不同掺杂水平（即，不同的氧化学计量比）使用磁光学（MO）在高达几MHz的宽频率范围内测量。在Tc的起始，MO测量，高达6 K朝向更高的温度的位移，观察到在高频率的那些样品，这是远离最佳掺杂条件。用超导序参量的相位涨落解释了所观察到的效应。
英文摘要：
Fluctuation induced diamagnetism in BSCCO single crystals with different doping levels (i.e., different oxygen stoichiometry) was measured using magneto-optics (MO) in a wide frequency range up to several MHz. A shift in Tc onset, measured by MO, of up to 6 K towards higher temperatures was observed at high frequencies in those samples which are far from the optimally doped condition. An explanation of the observed effect in terms of the phase fluctuations of the superconducting order parameter is proposed.
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