ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Measurements of the real (χ') part of the ac magnetic susceptibility have been performed on two polycrystalline Gd2CuO4 samples sintered at different temperatures, 850 °C and 1080 °C in the temperature range 10〈T(K)〈300. Two well-defined maxima have been observed in the temperature dependence of χ'. One, located at about 20 K, that is frequency independent. The second is at about 280 K for the sample annealed at 1080 °C, and it is frequency independent. Instead, for the sample annealed at 850 °C the maximum appears at about 210 K, and it is frequency dependent. These results suggest the existence of magnetic domains, with their coherence lengths being a function of the thermal treatment.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.358080
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