Fragile magnetic order in the honeycomb lattice Iridate Na2 IrO3 revealed by magnetic impurity doping
| dc.contributor.author | Mehlawat, K. | |
| dc.contributor.author | Sharma, G. | |
| dc.contributor.author | Singh, Yogesh | |
| dc.date.accessioned | 2020-12-07T08:46:22Z | |
| dc.date.available | 2020-12-07T08:46:22Z | |
| dc.date.issued | 2015 | |
| dc.description.abstract | We report the structure, magnetic, and thermal property measurements on single-crystalline and polycrystalline samples of the Ru-substituted honeycomb lattice iridate Na2Ir1−xRuxO3 (x=0,0.05,0.1,0.15,0.2,0.3,0.5). The evolution of magnetism in Na2Ir1−xRuxO3 has been studied using dc and ac magnetic susceptibilities and heat-capacity measurements. The parent compound Na2IrO3 is a spin-orbit-driven Mott insulator with magnetic order of reduced moments below TN=15K. In the Ru-substituted samples the antiferromagnetic long-range state is replaced by a spin-glass-like state even for the smallest substitution suggesting that the magnetic order in Na2IrO3 is extremely fragile. We argue that these behaviors indicate the importance of nearest-neighbor magnetic exchange in the parent Na2IrO3. Additionally, all samples show insulating electrical transport. | en_US |
| dc.identifier.citation | Physical Review B - Condensed Matter and Materials Physics, 92 (13) | en_US |
| dc.identifier.other | 10.1103/PhysRevB.92.134412 | |
| dc.identifier.uri | https://journals.aps.org/prb/abstract/10.1103/PhysRevB.92.134412 | |
| dc.identifier.uri | http://hdl.handle.net/123456789/2747 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | American Physical Society | en_US |
| dc.subject | Fragile magnetic | en_US |
| dc.subject | honeycomb | en_US |
| dc.subject | Iridate Na2IrO3 | en_US |
| dc.subject | magnetic impurity | en_US |
| dc.title | Fragile magnetic order in the honeycomb lattice Iridate Na2 IrO3 revealed by magnetic impurity doping | en_US |
| dc.type | Article | en_US |