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Grain boundary contribution to recoil loop openness of exchange-coupled nanocrystalline magnets

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Grain boundary contribution to recoil loop openness of exchange-coupled nanocrystalline magnets

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dc.contributor.author Rong, Chuanbing
dc.contributor.author Liu, J. Ping
dc.date.accessioned 2010-08-09T20:22:49Z
dc.date.available 2010-08-09T20:22:49Z
dc.date.issued 2009-04-29 en_US
dc.identifier.citation Appl. Phys. Lett. 94, 172510 (2009) en_US
dc.identifier.issn 0003-6951 (paper en_US
dc.identifier.uri http://hdl.handle.net/10106/4988
dc.description.abstract It has been well known that recoil loop openness is related to soft-phase presence in exchange-coupled hard-soft nanocomposite magnets. Our study on recoil loop openness of exchange-coupled nanocrystalline magnets (both single-phase and composite) using a micromagnetic finite-element method has revealed that the recoil loop openness is also due to decreased grain size. Open recoil loops exist in single-phase magnets as well. Simulation of magnetization distribution in both nanocrystalline single-phase magnets and nanocomposite magnets shows that the openness of the recoil loops is correlated with unstable magnetization behavior in grain boundary and soft-phase regions, which is attributed to high energy state caused by exchange coupling in these regions. The simulation results are supported by experimental data. en_US
dc.language.iso en_US en_US
dc.publisher American Institute of Physics en_US
dc.subject exchange interactions (electron) en_US
dc.subject finite element analysis en_US
dc.subject grain boundaries en_US
dc.subject grain size en_US
dc.subject magnetisation en_US
dc.subject nanomagnetics en_US
dc.subject nanostructured materials en_US
dc.title Grain boundary contribution to recoil loop openness of exchange-coupled nanocrystalline magnets en_US
dc.type Article en_US
dc.publisher.department Department of Physics, The University of Texas at Arlington en_US
dc.identifier.externalLink http://link.aip.org/link/APPLAB/v94/i17/p172510/s1 en_US
dc.identifier.externalLinkDescription External link to the published article en_US

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