Anhydrous Ruthenium Chlorides

Fletcher, J. M.; Gardner, W. E.; Hooper, E.W.; Hyde, K.R.; Moore, F. H.; Woodhead, J.L.

doi:10.1038/1991089a0

Cited by 63 publications

(50 citation statements)

References 8 publications

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“…Further deforming the crystal altogether obliterates the magnetic transition at 7 K (brown curve-3). The transition at 14 K is broad, and matches the magnetic transition in a powder sample (blue curve-4) with an ABAB type magnetic order [19,21,23,24] as well as single crystals reported in Ref. [20].…”

Section: Iii-b Heat Capacitymentioning

confidence: 76%

“…This may be responsible for the fact that different crystal structures have been reported, including both the trigonal (T) space group P 3 1 12 where each unit cell contains three honeycomb layers [23,24,31], and the one layer per unit cell monoclinic (M) space group C2/m [32]. The low temperature magnetic ordering transitions have similarly shown some discrepancies.…”

Section: Introductionmentioning

confidence: 84%

“…On the other hand, it is much more feasible to carry out detailed neutron scattering investigations of the binary halide α-RuCl 3 , which has been proposed as an alternate candidate to realize Kitaev physics [16][17][18][19][20][21][22]. In this material, honeycomb layers of octahedrally coordinated low spin Ru 3+ ions are coupled via weak van der Waals inter-layer interactions [23,24] (see Fig. 1).…”

Section: Introductionmentioning

confidence: 99%

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Low-temperature crystal and magnetic structure ofα−RuCl3

et al. 2016

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Section: Iii-b Heat Capacitymentioning

confidence: 76%

Section: Introductionmentioning

confidence: 84%

Section: Introductionmentioning

confidence: 99%

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Low-temperature crystal and magnetic structure ofα−RuCl3

et al. 2016

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“…Magnetization measurements in the paramagnetic state have been reported for both powder and single crystals. Powder measurements give effective moments of 2.2-2.3 µ B and Weiss temperatures of 23-40 K [13,81,141,142]. Single crystal measurements show strong paramagnetic anisotropy, and give µ e f f = 2.1 µ B and θ = 37 K with the field applied in the plane, and µ e f f = 2.7 µ B and θ = −150 K with the field applied perpendicular to the layers [143].…”

Section: Ruxmentioning

confidence: 96%

Crystal and Magnetic Structures in Layered, Transition Metal Dihalides and Trihalides

2017

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Materials composed of two dimensional layers bonded to one another through weak van der Waals interactions often exhibit strongly anisotropic behaviors and can be cleaved into very thin specimens and sometimes into monolayer crystals. Interest in such materials is driven by the study of low dimensional physics and the design of functional heterostructures. Binary compounds with the compositions MX 2 and MX 3 where M is a metal cation and X is a halogen anion often form such structures. Magnetism can be incorporated by choosing a transition metal with a partially filled d-shell for M, enabling ferroic responses for enhanced functionality. Here a brief overview of binary transition metal dihalides and trihalides is given, summarizing their crystallographic properties and long-range-ordered magnetic structures, focusing on those materials with layered crystal structures and partially filled d-shells required for combining low dimensionality and cleavability with magnetism.

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“…Recently, α-RuCl 3 [15], a compound with its RuCl 6 octahedra sharing edges on a nearly perfect honeycomb lattice, has been highlighted as a perhaps more promising Kitaev candidate, even though its spin-orbital coupling is expected to be weaker. Initially labeled as a semiconductor with a small gap of 0.3 eV [16], it was later discussed as a Mott-insulator [17] in which spin-orbit coupling plays a critical role [18].…”

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confidence: 99%