Ni D, Gui X, Powderly KM, Cava RJ. Honeycomb-Structure RuI
3 , A New Quantum Material Related to α-RuCl
3.
ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022;
34:e2106831. [PMID:
34841583 DOI:
10.1002/adma.202106831]
[Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 11/25/2021] [Indexed: 06/13/2023]
Abstract
The layered honeycomb lattice material α-RuCl3 has emerged as a prime candidate for displaying the Kitaev quantum spin liquid state, and as such has attracted much research interest. Here a new layered honeycomb lattice polymorph of RuI3 , a material that is strongly chemically and structurally related to α-RuCl3 is described. The material is synthesized at moderately elevated pressures and is stable under ambient conditions. Preliminary characterization reveals that it is a metallic conductor, with the absence of long-range magnetic order down to 0.35 K and an unusually large T-linear contribution to the heat capacity. It is proposed that this phase, with a layered honeycomb lattice and strong spin-orbit coupling, provides a new route for the characterization of quantum materials.
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