G
Gino Hrkac
Researcher at University of Exeter
Publications - 120
Citations - 3259
Gino Hrkac is an academic researcher from University of Exeter. The author has contributed to research in topics: Micromagnetics & Coercivity. The author has an hindex of 28, co-authored 119 publications receiving 2851 citations. Previous affiliations of Gino Hrkac include University of Sheffield & Vienna University of Technology.
Papers
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Journal ArticleDOI
Exchange spring media for perpendicular recording
Dieter Suess,Thomas Schrefl,Sebastian Fähler,M. Kirschner,Gino Hrkac,F. Dorfbauer,Josef Fidler +6 more
TL;DR: In this article, a novel type of exchange spring media is proposed for magnetic recording systems consisting of a hard/soft bilayer, which can be optimized in order to achieve a high thermal stability without increase of coercive field.
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Current-Driven Vortex Oscillations in Metallic Nanocontacts
Q. Mistral,M. Van Kampen,Gino Hrkac,Joo-Von Kim,Thibaut Devolder,Paul Crozat,Claude Chappert,Liesbet Lagae,Thomas Schrefl +8 more
TL;DR: In this article, the authors present experimental evidence of subgigahertz spin-transfer oscillations in metallic nanocontacts that are due to the translational motion of a magnetic vortex.
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Understanding the microstructure and coercivity of high performance NdFeB-based magnets
T.G. Woodcock,Yuepeng Zhang,Gino Hrkac,Georgeta Ciuta,Nora Dempsey,Thomas Schrefl,Oliver Gutfleisch,Dominique Givord +7 more
TL;DR: A combination of high resolution characterization, molecular dynamics and micromagnetic simulations and model thick film systems has been used to gain valuable new insights into the coercivity mechanisms in R-Fe-B magnets as discussed by the authors.
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Exchange spring recording media for areal densities up to 10 Tbit/in2
TL;DR: In this paper, the authors proposed a multilayer FePt trilayer, which reduced the coercive field by a factor of 8 compared to a single-phase FPN layer of the same thickness.
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The role of local anisotropy profiles at grain boundaries on the coercivity of Nd2Fe14B magnets
Gino Hrkac,T.G. Woodcock,Colin L. Freeman,Alexander F. Goncharov,Julian S. Dean,Thomas Schrefl,Oliver Gutfleisch +6 more
TL;DR: In this paper, the authors present numerical evidence from atomistic calculations that the coercivity of high performance NdFeB-sintered-magnets can be explained by a distorted region of Nd2Fe14B at grain boundaries, which has a reduced local magnetic anisotropy.