Co K-edge XANES and spin-state transition of RCoO3 (R=La, Eu)

Chang, Jia-Yaw; Lin, B. N.; Hsu, Y. Y.; Ku, H.C.

doi:10.1016/s0921-4526(02)02595-4

Cited by 29 publications

(25 citation statements)

References 5 publications

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“…Many of the cobalt(III) spectra display a weak pre-edge feature at 7709 eV that can be assigned to the 1s-3d transition [27]. This feature has previously been observed for octahedral cobalt(III) compounds in the solid state [29].…”

Section: Xanes Spectrasupporting

confidence: 51%

XANES investigation of the Co oxidation state in solution and in cancer cells treated with Co(III) complexes

Bonnitcha

Hall

Underwood

et al. 2006

Journal of Inorganic Biochemistry

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Section: Xanes Spectrasupporting

confidence: 51%

XANES investigation of the Co oxidation state in solution and in cancer cells treated with Co(III) complexes

Bonnitcha

Hall

Underwood

et al. 2006

Journal of Inorganic Biochemistry

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“…[14] A phenomenon named cavitation is occasionally observed during deformation, depending on the preparation of materials and test conditions. [15][16][17][18][19] The appearance of cavities always causes whitening [20] in polymers due to the sizes of cavities are comparable to the wavelengths of visible light [21] which are scattered roughly identically (Mie scattering). [22] The ultrasmall angle X-ray scattering (USAXS) setup is regarded as one of the most appropriate apparatuses to detect these large-scale structures.…”

mentioning

confidence: 99%

Cavitation‐Induced Stress Whitening in Semi‐Crystalline Polymers

Men

2018

Macro Materials & Eng

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Cavitation‐induced stress whitening in semi‐crystalline polymers during stretching significantly influences the physical properties of the materials. This review summarizes studies focusing on two different cavitation processes triggered at small and large strain regimes. The corresponding mechanisms of these two cavitation processes are discussed. For cavitation activated at small strain, there are two basic but distinctly different models with the initiation of cavities either in the amorphous phase or in the crystalline skeleton. For the cavitation triggered at a large strain regime, there are also two different arguments being either due to the defects located in the ends of micro‐fibrils or as a consequence of the fragmentation of load‐bearing inter‐fibril/micro‐fibril tie chains in highly oriented amorphous networks. A unified understanding of the cavitation processes during stretching semi‐crystalline polymers based on interpenetrated network model is proposed. Finally, this review outlooks future research topics for better understanding the cavitation mechanism to meet the industrial need.

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“…If, however, there is no change in the spin state it is not clear why the (static or dynamic) distortions around Co 3+ should change that dramatically. Eventually the Knight shift results are inconclusive-the Nd 3+ and the Co 4+ -moments might obscure the Co 3+ LS-IS transition [17,11]-or the LS-IS transition indeed does not take place at all. In the latter case, what happens at T s ?…”

Section: Higher Order Transition At T Smentioning

confidence: 99%

“…While with NdCoO 3 there is evidence for a uniform Co 3+ LS state with S = 0 at all temperatures [11], with Nd 1−x Sr x CoO 3 compounds, because of the Sr/Nd-induced valence mixture, the spin randomness certainly increases with x. Summarizing, we can have the: 4. oxygen non-stoichiometry, 5. thermal excitation into higher HS or IS states [17].…”

Section: Random Elements and Spin Glass-like Statesmentioning

confidence: 99%