J. M. D. Coey
Trinity College, Dublin
779 Papers
7.1K Citations
J. M. D. Coey is an academic researcher from Trinity College, Dublin. The author has contributed to research in topics: Magnetization & Ferromagnetism. The author has an hindex of 81, co-authored 748 publications. Previous affiliations of J. M. D. Coey include Beihang University & Centre national de la recherche scientifique.
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Papers
Preparation and characterization of iron oxide pillared montmorillonite
TL;DR: In this article, the authors used X-ray powder diffraction and 57Fe Mossbauer spectroscopy to characterize a pillared clay (PILC) with a dspacing of 19 A (gallery height 9·4 A) and does not expand with glycol.
77
Nucleation field and energy product of aligned two-phase magnets-progress towards the '1 MJ/m/sup 3/' magnet
Ralph Skomski,J. M. D. Coey +1 more
TL;DR: In this article, the exchange hardening of two-phase systems composed of an aligned hard phase and a soft phase with high magnetization was investigated using a micromagnetic approach, which accounts for interactions between the soft regions.
Effect of a Magnetic Field on Electrodeposition: Chronoamperometry of Ag, Cu, Zn, and Bi
TL;DR: In this article, the transient current response following a stepwise decrease of potential from the rest potential is studied for solutions of Ag +, Zn 2+, Cu 2+ and Bi 3+, comparing the behavior in the presence and absence of a 0.5 T magnetic field.
74
Fe-Doping-Induced Magnetism in Nano-Hydroxyapatites
Vincenzo Iannotti,Alessio Adamiano,Giovanni Ausanio,Luciano Lanotte,Giuliana Aquilanti,J. M. D. Coey,M. Lantieri,Gabriele Spina,Maria Fittipaldi,G. Margaris,Kalliopi N. Trohidou,Simone Sprio,Monica Montesi,Silvia Panseri,Monica Sandri,Michele Iafisco,Anna Tampieri +16 more
TL;DR: An extensive chemical-physical and magnetic investigation of three hydroxyapatite nanocrystals doped with different iron species and containing small or no amounts of maghemite as a secondary phase shows that the unusual magnetic properties of Fe2+/3+-doped hydroxyAPatites (FeHA) occur by a synergy of two different phenomena.
74
Joule Heating Effect on Field-Free Magnetization Switching by Spin-Orbit Torque in Exchange-Biased Systems
Seyed Armin Razavi,Di Wu,Di Wu,Guoqiang Yu,Yong Chang Lau,Kin L. Wong,Weihua Zhu,Congli He,Zongzhi Zhang,J. M. D. Coey,Plamen Stamenov,Pedram Khalili Amiri,Kang L. Wang +12 more
TL;DR: In this paper, the authors study the mechanism of magnetic switching via spin-orbit torque and expose the importance of Joule heating, but care must be taken so that heating does not decrease exchange bias and spoil the switching.