dc.contributor.author | Bance, S | |
dc.contributor.author | Seebacher, B | |
dc.contributor.author | Schrefl, T | |
dc.contributor.author | Exl, L | |
dc.contributor.author | Winklhofer, M | |
dc.contributor.author | Hrkac, G | |
dc.contributor.author | Zimanyi, G | |
dc.contributor.author | Shoji, T | |
dc.contributor.author | Yano, M | |
dc.contributor.author | Sakuma, N | |
dc.contributor.author | Ito, M | |
dc.contributor.author | Kato, A | |
dc.contributor.author | Manabe, A | |
dc.date.accessioned | 2016-04-27T12:48:16Z | |
dc.date.issued | 2014-12-18 | |
dc.description.abstract | The coercive field of permanent magnets decreases with increasing grain size. The grain size dependence of coercivity is explained by a size dependent demagnetizing factor. In Dy free Nd2Fe14B magnets, the size dependent demagnetizing factor ranges from 0.2 for a grain size of 55 nm to 1.22 for a grain size of 8300 nm. The comparison of experimental data with micromagnetic simulations suggests that the grain size dependence of the coercive field in hard magnets is due to the non-uniform magnetostatic field in polyhedral grains. | en_GB |
dc.description.sponsorship | This work is based on results obtained from the future pioneering program “Development of magnetic material technology for high-efficiency motors” commissioned by the New Energy and Industrial Technology Development Organization (NEDO). We acknowledge the financial support from the Austrian Science Fund (F4112-N13). | en_GB |
dc.identifier.citation | Vol. 116 (23), article 233903 | en_GB |
dc.identifier.doi | 10.1063/1.4904854 | |
dc.identifier.uri | http://hdl.handle.net/10871/21280 | |
dc.language.iso | en | en_GB |
dc.publisher | American Institute of Physics (AIP) | en_GB |
dc.subject | Coercive force | en_GB |
dc.subject | Magnets | en_GB |
dc.subject | Demagnetization | en_GB |
dc.subject | Permanent magnets | en_GB |
dc.subject | Nucleation | en_GB |
dc.title | Grain-size dependent demagnetizing factors in permanent magnets | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2016-04-27T12:48:16Z | |
dc.description | This is the final version of the article. Available from the American Institute of Physics via the DOI in this record. | en_GB |
dc.identifier.journal | Journal of Applied Physics | en_GB |