J
James S. Lord
Researcher at Rutherford Appleton Laboratory
Publications - 161
Citations - 2443
James S. Lord is an academic researcher from Rutherford Appleton Laboratory. The author has contributed to research in topics: Muon spin spectroscopy & Muon. The author has an hindex of 22, co-authored 158 publications receiving 2183 citations. Previous affiliations of James S. Lord include University of Huddersfield & University of Edinburgh.
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Journal ArticleDOI
Experimental confirmation of the predicted shallow donor hydrogen state in zinc oxide.
Stephen J. Cox,Stephen J. Cox,E.A. Davis,Stephen P. Cottrell,P.J.C. King,James S. Lord,João Gil,H. V. Alberto,R. C. Vilão,J. Piroto Duarte,N. Ayres de Campos,A. Weidinger,R. L. Lichti,Stuart J. C. Irvine +13 more
TL;DR: It is confirmed that interstitial protium may act as a shallow donor in zinc oxide, by direct spectroscopic observation of its muonium counterpart, and results for the cadmium chalcogenides suggest that such shallow donor states are generic to the II-VI compounds.
Journal ArticleDOI
Quantum magnetism in the paratacamite family: towards an ideal kagomé lattice.
Philippe Mendels,Fabrice Bert,M. A. de Vries,A. Olariu,Andrew Harrison,Fabienne Duc,J.-C. Trombe,James S. Lord,Anthony A. Amato,C. Baines +9 more
TL;DR: In this paper, the authors report muon spin rotation measurements on the paratacamite and find that the limit between a dynamical and a partly frozen ground state occurs around $x=0.5.
Journal ArticleDOI
Gapless Spin Liquid Ground State in the S=1/2 Vanadium Oxyfluoride Kagome Antiferromagnet [NH4]2[C7H14N][V7O6F18]
Lucy Clark,J. C. Orain,Fabrice Bert,M. A. de Vries,Farida H. Aidoudi,Russell E. Morris,Philip Lightfoot,James S. Lord,Mark T. F. Telling,Mark T. F. Telling,Pierre Bonville,J. P. Attfield,Philippe Mendels,Philippe Mendels,Andrew Harrison +14 more
TL;DR: The vanadium oxyfluoride (DQVOF) is a geometrically frustrated magnetic bilayer material as discussed by the authors, whose structure consists of S = 1/2 kagome planes of V(4+) d(1) ions with s = 1 V(3+d+d(2) ions located between the KGome layers.
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Probing the Spin-Spin Dynamical Autocorrelation Function in a Spin Glass above Tg via Muon Spin Relaxation.
TL;DR: It is found that muon polarization obeys a time-field scaling relation which allows us to distinguish between three possible forms of the spin-spin dynamical autocorrelation function: a power law, a stretched exponential, and a cutoff power law.
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Importance of Spin-Orbit Interaction for the Electron Spin Relaxation in Organic Semiconductors
Laura Nuccio,Laura Nuccio,Maureen Willis,Leander Schulz,Simone Fratini,Fabrizio Messina,Michele D'Amico,Francis L. Pratt,James S. Lord,Iain McKenzie,Marsha A. Loth,Balaji Purushothaman,John E. Anthony,Martin Heeney,Rory M. Wilson,Ignacio Hernández,Ignacio Hernández,Marco Cannas,Kamil Sedlak,Theo Kreouzis,William P. Gillin,Christian Bernhard,Alan J. Drew,Alan J. Drew +23 more
TL;DR: In this article, the role of the spin-orbit interaction in electron spin relaxation in organic semiconductors has been investigated and it is shown that the spinorbit interaction is a significant source of electron spin relaxations in these materials.