| Autor: |
Disseler, S. M., Dhital, Chetan, Amato, A., Giblin, S. R., de la Cruz, Clarina, Wilson, Stephen D., Graf, M. J. |
| Rok vydání: |
2012 |
| Předmět: |
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| Zdroj: |
Phys. Rev. B 86, 014428 (2012) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevB.86.014428 |
| Popis: |
We present results from muon spin relaxation/rotation, magnetization, neutron scattering and transport measurements on polycrystalline samples of the pyrochlore iridates Y2Ir2O7 (Y-227) and Yb2Ir2O7 (Yb-227). Well-defined spontaneous oscillations of the muon asymmetry are observed together with hysteretic behavior in magnetization below 130 K in Yb-227, indicative of commensurate long-range magnetic order. Similar oscillations are observed in Y-227 below 150 K; however the onset of hysteretic magnetization at T = 190 K indicates a transition to an intermediate state lacking long-range order as observed in Nd-227. Our results also show that insulating members of the iridate family have nearly identical magnetic ground states, and that the presence of magnetic A-site species does not play any significant role in altering the ground state properties. |
| Databáze: |
arXiv |
| Externí odkaz: |
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