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D. Boldrin

As seen in: Physical Review B
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Articles by D. Boldrin

Magnetically ordered and kagome quantum spin liquid states in the Zn-doped claringbullite series

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By M. Georgopoulou, Institut Laue-Langevin, D. Boldrin
| Physical Review B
Abstract Neutron scattering measurements have been performed on deuterated powder samples of claringbullite and Zn-doped claringbullite [ZnxCu4−x(OD)6FCl]. At low temperatures, claringbullite Cu4(OD)6FCl forms a distorted pyrochlore lattice with long-range magnetic order and spin-wave-like magnetic excitations. Partial Zn doping leads to the nominal ZnCu3(OD)6FCl compound, a geometrically frustrated spin-1/2 kagome antiferromagnet that shows no transition to magnetic order down to 1.5 K.
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Room-temperature weak collinear ferrimagnet with symmetry-driven large intrinsic magneto-optic signatures

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By F. R. Johnson, D. Boldrin, L. Cohen, L. Beran
| Physical Review B
Abstract Here we present a magnetic thin film with a weak ferrimagnetic (FIM) phase above the Néel temperature (TN=240K) and a noncollinear antiferromagnetic (AFM) phase below, exhibiting a small net magnetization due to strain-associated canting of the magnetic moments. A long-range ordered FIM phase has been predicted in related materials, but without symmetry analysis. We now perform this analysis and use it to calculate the magneto-optical Kerr effect (MOKE) spectra in the AFM and FIM phases.
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Functionalised magnetic nanoparticles for uranium adsorption with ultra-high capacity and selectivity

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By J. Qi, O. Preedy, S. Chen, D. Boldrin
| Royal Society of Chemistry Verified
The removal of radioactive contaminants from the environment for safe and efficient waste disposal is a critical challenge, requiring the development of novel selective and high-capacity sequestering materials. In this paper the design of superparamagnetic iron oxide nanoparticles (SPIONs) as highly efficient magnetic-sorbent structures for uranium (U( )) separation is described.
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