Growth of ZnRh<sub>2</sub>O<sub>4</sub> Single Crystals

Arlett, Robert H.

doi:10.1111/j.1151-2916.1968.tb13864.x

Cited by 6 publications

(1 citation statement)

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“…For these reasons, we have synthesized and carried out an extensive study of the hole doped family Cu 1−x Zn x Rh 2 O 4 with end members CuRh 2 O 4 and ZnRh 2 O 4 ; the latter is a p-type semiconductor [34][35][36]. Magnetization was performed to explore spin properties and search for signatures of superconductivity, while the evolution of the Jahn-Teller transition was tracked using powder x-ray diffraction.…”

Section: Introductionmentioning

confidence: 99%

Evolution of magnetic and orbital properties in the magnetically diluted A -site spinel Cu1−xZnxRh2
Zakrzewski
¹
,
Gangopadhyay
²
,
MacDougall
³

et al. 2018
Phys. Rev. B
11
1
6
0
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In frustrated spinel antiferromagnets, dilution with non-magnetic ions can be a powerful strategy for probing unconventional spin states or uncovering interesting phenomena. Here, we present X-ray, neutron scattering and thermodynamic studies of the effects of magnetic dilution of the tetragonally-distorted A-site spinel antiferromagnet, CuRh2O4, with non-magnetic Zn 2+ ions. Our data confirm the helical spin order recently identified at low-temperatures in this material, and further demonstrate a systematic suppression of the associated Néel temperature with increasing site dilution towards a continuous transition with critical doping of xspin ∼ 0.44. Interestingly, this critical doping is demonstrably distinct from a second structural critical point at xJT ∼ 0.6, which is consistent with the suppression of orbital order on the A-site through a classical percolative mechanism. This anomalously low value for xspin is confirmed via multiple measurements, and is inconsistent with predictions of classical percolation theory, suggesting that the spin transition in this material is driven by an enhancement of pre-existing spin fluctuations with weak dilution.

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Section: Introductionmentioning

confidence: 99%