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Aly H. Abdeldaim on Muck Rack

Aly H. Abdeldaim

As seen in: Nature, Physical Review B
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Articles

Kitaev interactions through extended superexchange pathways in the $${j}_{{\mathsf{eff}}}=1/2$$ j eff = 1 / 2 Ru3+ honeycomb magnet RuP3SiO11 - Nature Communications

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By Aly H. Abdeldaim, Hlynur Gretarsson, M. Le, Pascal Manuel, Robin Perry, Alexander A Tsirlin, Gøran J. Nilsen, Lucy Clark
| Nature Verified
Abstract Magnetic materials are composed of the simple building blocks of magnetic moments on a crystal lattice that interact via magnetic exchange. Yet from this simplicity emerges a remarkable diversity of magnetic states. Some reveal the deep quantum mechanical origins of magnetism, for example, quantum spin liquid (QSL) states in which magnetic moments remain disordered at low temperatures despite being strongly correlated through quantum entanglement.
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One-dimensional quantum magnetism in the $S=\frac{1}{2}$ Mo(V) system ${\mathrm{KMoOP}}_{2}{\mathrm{O}}_{7}$

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By ISIS Neutron, Muon Source, Alexander A Tsirlin, Aly H. Abdeldaim
| Physical Review B
Abstract We present a comprehensive experimental and ab initio study of the S=1/2Mo5+ system, KMoOP2O7, and show that it realizes the S=12 Heisenberg chain antiferromagnet model. Powder neutron diffraction reveals that KMoOP2O7 forms a magnetic network comprised of pairs of Mo5+ chains within its monoclinic P21/n structure. Antiferromagnetic interactions within the Mo5+ chains are identified through magnetometry measurements and confirmed by analysis of the magnetic specific heat.
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