Low temperature anomalies of recoiled free fraction in YBa2((Cu1-xFex)-Fe-57)(3)O6+delta

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作者：
Eremenko, VV
Lukashev, DV
Matsievskii, KM
Ponomarchuk, VL
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FIZIKA NIZKIKH TEMPERATUR | 1996年 / 22卷 / 12期
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O59 [应用物理学];
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摘要：
The parameters of the electric field gradient at the doping iron nuclei in the high-T-0 YBa2((Cu0.98Fe0.02)-Fe-57)(3)O-6.95 samples are defined. The site positions of the doping nuclei are identified. An anomalous decrease in quadrupole doublet areas in the Mossbauer spectra are found below the superconductivity transition temperature, which is attributed to the development of the new phase with local magnetic ordering. We assume that the new phase is due to self-trapping of the conducting electrons in one-dimensional chains.
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页码：1383 / 1389
页数：7
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