Temperature dependence of the magnetic susceptibility of solid oxygen

Jeżowski, A.; Litwicki, Z.; Sumarokov, V. V.; Stachowiak, P.

doi:10.1063/1.2389017

Cited by 5 publications

(1 citation statement)

References 7 publications

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“…However, this feature is close that found when O 2 leaks into magnetometers, which prompted measurements under a variety of conditions, repeated measurements on the same and different compounds and different sample containers, and even measurements on different SQUIDS. 28,29 Field-cooled and ZFC measurements at field strengths of 1000, 2000, and 10000 Oe were then carefully conducted on the sample on different days to reduce the chance of oxygen being in the system and producing the aforementioned peak. The results from all measurements maintain the distinct peak observed at 53 K, boosting our confidence in claiming the peak to arise from the trimers of uranium (see Figures S3 to S5 for further plots).…”

Section: ■ Results and Discussionmentioning

confidence: 99%

A₆U₃Sb₂P₈S₃₂ (A = Rb, Cs): Quinary Uranium(IV) Thiophosphates Containing the [Sb(PS₄)₃]^6– Anion

2014

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The reaction of A2S3/U/P2S5/S at 500 °C affords the quinary U(IV) thiophosphates A6U3Sb2P8S32 (A = Rb, Cs). These compounds contain {U3(PS4)2[Sb(PS4)3]2}(6-) layers separated by alkali metal cations. The layers are composed of trimeric uranium units connected to each other by the thiophosphato-antimonite anion, [Sb(PS4)3](6-). This unit contains a central Sb(III) cation bound by three [PS4](3-) anions, creating a trigonal pyramidal environment around Sb(III). Each uranium cation is surrounded by eight sulfides in a distorted square antiprism that shares two edges with two other US8 units to form a trimeric [U3S18](24-) cluster. Magnetic susceptibility measurements indicate that the close proximity of the U(IV) within these clusters leads to antiferromagnetic ordering at 53 K. Reflectance spectroscopy indicates that these compounds are semiconductors with a band gap of 1.48 eV.

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Section: ■ Results and Discussionmentioning

confidence: 99%