| dc.contributor.author | Rong, Chuan-Bing | |
| dc.contributor.author | Zhang, Hong-wei | |
| dc.contributor.author | Shen, Bao-gen | |
| dc.contributor.author | Liu, J. Ping | |
| dc.date.accessioned | 2010-08-10T15:23:15Z | |
| dc.date.available | 2010-08-10T15:23:15Z | |
| dc.date.issued | 2006-01-24 | en_US |
| dc.identifier.citation | Appl. Phys. Lett. 88, 042504 (2006) | en_US |
| dc.identifier.issn | 0003-6951 (print) | en_US |
| dc.identifier.uri | http://hdl.handle.net/10106/4991 | |
| dc.description.abstract | Coercivity mechanism of the precipitation-hardened Sm(Co,Fe,Cu,Zr)z high-temperature magnets was found to vary with temperature by measurements of reversible magnetization. The magnetization reversal is mainly controlled by domain-wall pinning when temperature is lower than 800 K, while is mainly dominated by nucleation at higher temperature. It is interesting to find that the anomalous temperature dependence of coercivity Hc(T) near Curie temperature of the 1:5 phase is caused by the fast drop of intergranular exchange coupling. This mechanism can also explain the coercivity behavior that the anomalous Hc(T) tends to disappear with increasing z value. | en_US |
| dc.language.iso | en_US | en_US |
| dc.publisher | American Institute of Physics | en_US |
| dc.subject | Curie temperature | en_US |
| dc.subject | Cobalt alloys | en_US |
| dc.subject | Coercive force | en_US |
| dc.subject | Copper alloys | en_US |
| dc.subject | Exchange interactions (electron) | en_US |
| dc.subject | Ferromagnetic materials | en_US |
| dc.subject | Iron alloys | en_US |
| dc.subject | Magnetic domain walls | en_US |
| dc.subject | Magnetisation reversal | en_US |
| dc.subject | Nucleation | en_US |
| dc.subject | Precipitation hardening | en_US |
| dc.subject | Samarium alloys | en_US |
| dc.subject | Zirconium alloys | en_US |
| dc.title | Mechanism of the anomalous temperature dependence of coercivity in Sm(Co,Fe,Cu,Zr)[subscript]z high-temperature magnets | |
| 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/v88/i4/p042504/s1 | en_US |
| dc.identifier.externalLinkDescription | External link to the published article | en_US |
