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Ian P. Swainson
Researcher at Chalk River Laboratories
Publications - 128
Citations - 3694
Ian P. Swainson is an academic researcher from Chalk River Laboratories. The author has contributed to research in topics: Neutron diffraction & Magnetic structure. The author has an hindex of 31, co-authored 125 publications receiving 3405 citations. Previous affiliations of Ian P. Swainson include Atomic Energy of Canada Limited & Armenian National Academy of Sciences.
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Cooperative Paramagnetism in the Geometrically Frustrated Pyrochlore Antiferromagnet Tb 2 Ti 2 O 7
J. S. Gardner,S. R. Dunsiger,Bruce D. Gaulin,Michel J. P. Gingras,John E. Greedan,Robert F. Kiefl,Mark D Lumsden,W. A. MacFarlane,N. P. Raju,J. E. Sonier,Ian P. Swainson,Zin Tun +11 more
TL;DR: In this article, a pyrochlore antiferromagnet in which the moments reside on a network of corner-sharing tetrahedra was studied. But unlike other geometrically frustrated systems, this system remains paramagnetic down to 0.07 K, rather than ordering into a conventional N\'eel or spin-glass-like state.
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X-ray/Neutron Diffraction and Electrochemical Studies of Lithium De/Re-Intercalation in Li1-xCo1/3Ni1/3Mn1/3O2 (x = 0 → 1)
TL;DR: In this article, X-ray and neutron diffraction studies were carried out on highly ordered (2−3% Li/Ni exchange) layered Li 1-xCo1/3Ni 1/3Mn 1/ 3O2 [(1 − x) = 1.0; 0.8, 0.6, 0., 0.45, 0, 0..30, and 0.04] prepared by chemical delithiation and relithiation.
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Phase transitions in the perovskite methylammonium lead bromide, CH3ND3PbBr3
TL;DR: In this article, the structure of phase IV of methylammonium lead bromide, CH3ND3PbBr3, has been shown from Rietveld refinement of neutron powder diffraction data to be centrosymmetric, with space group Pnma: Z=4; a=7.9434(4)A, b=11.8499(5)
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Low-frequency floppy modes in β-cristobalite
Ian P. Swainson,Martin T. Dove +1 more
TL;DR: Inelastic neutron scattering and molecular dynamics simulations provide evidence for the existence of low-frequency floppy modes in the high-temperature phase of cristobalite, which are analogous to those found in network glasses as discussed by the authors.
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Floppy modes in crystalline and amorphous silicates
TL;DR: In this paper, a number of feature of the RUM flexibility of crystalline networks of linked tetrahedra and octahedra is discussed, and the insights from this have been useful to understand dynamically disordered crystalline phases, zeolites, and now silica glass.