Spin liquid close to a quantum critical point in Na 4 Ir 3 O 8
| dc.contributor.author | Singh, Yogesh | |
| dc.date.accessioned | 2020-12-11T05:29:03Z | |
| dc.date.available | 2020-12-11T05:29:03Z | |
| dc.date.issued | 2013 | |
| dc.description | Only IISERM authors are available in the record. | |
| dc.description.abstract | Na 4 Ir 3 O 8 is a candidate material for a three-dimensional quantum spin liquid on the hyperkagome lattice. We present thermodynamic measurements of heat capacity C and thermal conductivity κ on high-quality polycrystalline samples of Na 4 Ir 3 O 8 down to T = 500 and 75 mK, respectively. Absence of long-range magnetic order down to T = 75 mK strongly supports claims of a spin-liquid ground state. The constant magnetic susceptibility χ below T ≈ 25 K and the presence of a small but finite linear- T term in C ( T ) suggest the presence of gapless spin excitations. Additionally, the magnetic Gr ¨ u neisen ratio shows a divergence as T → 0 K and a scaling behavior, which clearly demonstrates that Na 4 Ir 3 O 8 is situated close to a zero-field QCP. | en_US |
| dc.identifier.citation | Physical Review B - Condensed Matter and Materials Physics, 88(22). | en_US |
| dc.identifier.other | https://doi.org/10.1103/PhysRevB.88.220413 | |
| dc.identifier.uri | https://journals.aps.org/prb/abstract/10.1103/PhysRevB.88.220413 | |
| dc.identifier.uri | http://hdl.handle.net/123456789/3010 | |
| dc.language.iso | en | en_US |
| dc.publisher | American Physical Society | en_US |
| dc.subject | Three-dimensional | en_US |
| dc.subject | Quantum spin liquid | en_US |
| dc.subject | Thermal conductivity | en_US |
| dc.title | Spin liquid close to a quantum critical point in Na 4 Ir 3 O 8 | en_US |
| dc.type | Article | en_US |