Spin-Glass-like Transition and Hall Resistivity of Y2-xBixIr2O7

Details Spin-Glass-like Transition and Hall Resistivity of Y2-xBixIr2O7 Spin-Glass-like Transition and Hall Resistivity of Y2-xBixIr2O7

2003-02-21

arxiv.org/abs/cond-mat/0302437v1

Physics

Condensed Matter

Strongly Correlated Electrons

9 pages, 7 figures, J. Phys. Soc. Jpn. 72 (2003) No.5

Scientific paper

10.1143/JPSJ.72.1226

Various physical properties of the pyrochlore oxide Y2-xBixIr2O7 have been studied. The magnetizations M measured under the conditions of the zero-field-cooling(ZFC) and the field-cooling(FC) have different values below the temperature T=TG. The anomalous T-dependence of the electrical resistivities r and the thermoelectric powers S observed at around TG indicates that the behavior of the magnetization is due to the transition to the state with the spin freezing. In this spin-frozen state, the Hall resistivities rH measured with the ZFC and FC conditions are found to have different values, too, in the low temperature phase (T

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