S
S. C. Williams
Researcher at University of Oxford
Publications - 8
Citations - 726
S. C. Williams is an academic researcher from University of Oxford. The author has contributed to research in topics: Luminosity & Light curve. The author has an hindex of 5, co-authored 6 publications receiving 528 citations.
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Journal ArticleDOI
Monoclinic crystal structure of α − RuCl 3 and the zigzag antiferromagnetic ground state
Roger Johnson,Roger Johnson,S. C. Williams,A. A. Haghighirad,John Singleton,Vivien Zapf,Pascal Manuel,Igor Mazin,Yongqiang Li,Harald Olaf Jeschke,Roser Valentí,Radu Coldea +11 more
TL;DR: In this article, a detailed study of the three-dimensional crystal structure using x-ray diffraction on untwinned crystals combined with structural relaxation calculations was performed, and the authors found evidence for a parent crystal structure with a monoclinic unit cell corresponding to a stacking of layers with a unidirectional in-plane offset, in contrast with the currently assumed trigonal three-layer stacking periodicity.
Journal ArticleDOI
Incommensurate counterrotating magnetic order stabilized by Kitaev interactions in the layered honeycomb α − Li 2 IrO 3
S. C. Williams,Roger Johnson,Roger Johnson,F. Freund,Sungkyun Choi,Anton Jesche,Itamar Kimchi,Soham Manni,Alessandro Bombardi,Pascal Manuel,Philipp Gegenwart,Radu Coldea +11 more
TL;DR: In this article, a single crystal magnetic resonant x-ray diffraction was combined with powder magnetic neutron diffraction to reveal an incommensurate magnetic order in the honeycomb layers with Ir magnetic moments counterrotating on nearest-neighbor sites.
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Single crystal growth from separated educts and its application to lithium transition-metal oxides
TL;DR: In this paper, single crystals of α-Li2IrO3 can be grown from separated educts in an open crucible in air, and the process is essentially isothermal and a temperature gradient of minor importance.
Journal ArticleDOI
Single crystal growth from separated educts and its application to lithium transition-metal oxides
TL;DR: It is shown that single crystals of α-Li2IrO3 can be grown from separated educts in an open crucible in air and a successful use of this simple and low cost technique for various other materials is anticipated.
Journal ArticleDOI
Avoided quasiparticle decay and enhanced excitation continuum in the spin- 1 2 near-Heisenberg triangular antiferromagnet Ba 3 CoSb 2 O 9
David Macdougal,S. C. Williams,Dharmalingam Prabhakaran,Robert Bewley,D. J. Voneshen,Radu Coldea +5 more
TL;DR: In this paper, the effects of collective quantum fluctuations in a spin-textonehalf{} near-Heisenberg antiferromagnet on a triangular lattice were investigated.