J
J M Perkins
Researcher at Imperial College London
Publications - 18
Citations - 6486
J M Perkins is an academic researcher from Imperial College London. The author has contributed to research in topics: High-resolution transmission electron microscopy & Dielectric. The author has an hindex of 11, co-authored 18 publications receiving 5718 citations.
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Journal ArticleDOI
Two-Dimensional Nanosheets Produced by Liquid Exfoliation of Layered Materials
Jonathan N. Coleman,Mustafa Lotya,Arlene O’Neill,Shane D. Bergin,Shane D. Bergin,Paul J. King,Umar Khan,Karen Young,Anne Gaucher,Sukanta De,Ronan J. Smith,Igor V. Shvets,Sunil K. Arora,George Stanton,Hye-Young Kim,Hye-Young Kim,Kangho Lee,Kangho Lee,Gyu Tae Kim,Georg S. Duesberg,Toby Hallam,John J. Boland,Jing Jing Wang,John F. Donegan,Jaime C. Grunlan,Gregory P. Moriarty,Aleksey Shmeliov,Rebecca J. Nicholls,J M Perkins,Eleanor M. Grieveson,Koenraad Theuwissen,David W. McComb,Peter D. Nellist,Valeria Nicolosi +33 more
TL;DR: It is shown that WS2 and MoS2 effectively reinforce polymers, whereas WS2/carbon nanotube hybrid films have high conductivity, leading to promising thermoelectric properties.
Journal ArticleDOI
Do Grain Boundaries Affect Microwave Dielectric Loss in Oxides
TL;DR: In this article, the sensitivity of a single grain boundary in a magnesium oxide bi-crystal to the polarization of an applied microwave field as a function of temperature was measured, and it was shown that grain boundaries are the main contributor to the observed difference in dielectric losses between single crystals and polycrystalline ceramics.
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Chemical speciation of nanoparticles surrounding metal-on-metal hips.
Angela E. Goode,J M Perkins,Ann Sandison,Chithra Karunakaran,Huikai Cheng,D Wall,John A. Skinner,Alister Hart,Alexandra E. Porter,David W. McComb,David W. McComb,Mary P. Ryan +11 more
TL;DR: Spectromicroscopy of tissue surrounding failed CoCr metal-on-metal hip replacements detected corroded nanoscale debris in periprosthetic tissue in two chemical states, with concomitant mitochondrial damage.
Journal ArticleDOI
Evidence for supercurrent connectivity in conglomerate particles in NdFeAsO1−δ
J. D. Moore,Kelly Morrison,Karen A. Yates,A.D. Caplin,Y Yeshurun,Y Yeshurun,L. F. Cohen,J M Perkins,Catriona M. McGilvery,David W. McComb,Zhi-An Ren,Joel K. W. Yang,Wei Lu,Xiaoli Dong,Z. X. Zhao +14 more
TL;DR: In this article, the authors report the use of global and local magnetometry and Hall probe imaging to investigate the electromagnetic connectivity of the superconducting current path in the oxygen-deficient fluorine-free Nd-based oxypnictides.
Journal ArticleDOI
Evidence for Supercurrent Connectivity in Conglomerate Particles in NdFeAsO1-d
J. D. Moore,Kelly Morrison,Karen A. Yates,A.D. Caplin,Y Yeshurun,L. F. Cohen,J M Perkins,Catriona M. McGilvery,David W. McComb,Zhi-An Ren,Jie Yang,W. J. Lu,Xiaoli Dong,Zhongxian Zhao +13 more
TL;DR: In this article, the authors used global and local magnetometry and Hall probe imaging to investigate the electromagnetic connectivity of the superconducting current path in the oxygen-deficient fluorine-free Nd-based oxypnictides.