تقرير
Frustration induced non-Curie-Weiss paramagnetism in La3Ir3O11: a fractional-valence-state iridate
| العنوان: | Frustration induced non-Curie-Weiss paramagnetism in La3Ir3O11: a fractional-valence-state iridate |
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| المؤلفون: | Yang, J., Wang, J. R., Zhen, W. L., Ma, L., Ling, L. S., Tong, W., Zhang, C. J., Pi, L., Zhu, W. K. |
| المصدر: | Physical Review B 100, 205107 (2019) |
| سنة النشر: | 2018 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Strongly Correlated Electrons |
| الوصف: | Experimental and theoretical studies are performed on La3Ir3O11, an iridate hosting a +4.33 fractional valence state for Ir ions and a three-dimensional frustrated structure composed of edge-shared Ir2O10 dimers. These features are expected to enhance inter-site hoppings and reduce magnetic moments of Ir ions. However, a spin-orbit driven Mott insulating transport is observed, which is supported by our first principles calculations. Most importantly, geometrical frustration and competing interactions result in a non-Curie-Weiss paramagnetic ground state, revealing no magnetic order down to 2 K. This unusual state is further demonstrated by a theoretical modeling process, suggesting a possible candidate for the spin liquid state. Comment: Physical Review B |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.100.205107 |
| URL الوصول: | http://arxiv.org/abs/1803.07261 |
| رقم الأكسشن: | edsarx.1803.07261 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.100.205107 |
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